FabSwingers.com forum: Science

By (user no longer on site) OP
over a year ago

I figure why not try spread a bit of knowledge with the love too.

Any on have any science based questions I'll give you an answer or find you an easy(ish) way to get one.

May try doing this a few times to see if it takes off or not.

So anyone have any buring or curious thoughts they want to ask?

Like why is the sky blue or what are stem cells anyway

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By (user no longer on site)
over a year ago

I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

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By (user no longer on site)
over a year ago

Sketch the temperarture – time diagram during the heating cycle of a 0.8% C steel. Use standard

Fe-Fe3C phase diagram.

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

Yes, simple physics

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By *ensuallover1000Man
over a year ago

Somewhere In The Ether…

Now you’re talking - my kind of thread

Ok......is there a known, specific molecular frequency (or vibrational frequency) that dictates whether matter will be solid as opposed to gaseous in consistency?

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By (user no longer on site) OP
over a year ago

Yup, as long as the wings can match the speed of the wheels (they will since I'm hoping they're attached) they'll reduce down force and that should help lift the plane off.

But that's a pretty fucking crazy treadmill

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By (user no longer on site) OP
over a year ago

Jesus man, if you wanted to just say you can do that, then just say you can sorry that shit out. I didn't say I was a prefessor of every scientific field.

Just figured it would be a fun way to spend the night chatting

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

Wow, that is a fantastic profile pic

Sorry thread, carry on

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By (user no longer on site)
over a year ago

"Jesus man, if you wanted to just say you can do that, then just say you can sorry that shit out. I didn't say I was a prefessor of every scientific field.

Just figured it would be a fun way to spend the night chatting"

Chill, it's called taking the piss

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By *hloe sussexTV/TS
over a year ago

Larne

Why have men got nipples lol ( I know the answer to this by the way )

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By (user no longer on site) OP
over a year ago

Shit I can't see the question!

I'm guessing you know about the triple point shit.

Vibrational energy is is good way to hear shit up, ala microwaves and water.

But it's not just heat, you need the right sort of pressure. so if you hear something up super hot, but apply enough pressure you can force it to stay solid.

If you have something nice and cool, but a very low pressure you can coax it into a liquid or gas too.

Pretty fucking cool huh, and it just doesn't seem obvious at first too.

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

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By *uicy72Woman
over a year ago

North Colchester

"I figure why not try spread a bit of knowledge with the love too.

Any on have any science based questions I'll give you an answer or find you an easy(ish) way to get one.

May try doing this a few times to see if it takes off or not.

So anyone have any buring or curious thoughts they want to ask?

Like why is the sky blue or what are stem cells anyway"

My daughter ask me that exact question the other day !

Why is the sky blue!?!?

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By (user no longer on site)
over a year ago

If a VW is driving along at 30mph, how long before the check engine light comes on?

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By (user no longer on site) OP
over a year ago

My bad man, I mustve read that wrong, initially thought you were being an ass rather than funny.

The fuck do you do for a living anyway? Material chemist?

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No because it needs air to flow over the wings to create lift.

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

Yes, simple physics "

Um, no. There's no air flow over the wing and therefore no lift ...

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By (user no longer on site) OP
over a year ago

The light on those things is for fun. They're actually interdimensional vehicles that pretend to be cars and just carry on going.

Some of them pretend for so long they actually become cars

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated."

Incorrect, speed of the wheels is irrelevant, if it was wheel driven then youd be correct.

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By *andonmessMan
over a year ago

A world all of his own

"I figure why not try spread a bit of knowledge with the love too.

Any on have any science based questions I'll give you an answer or find you an easy(ish) way to get one.

May try doing this a few times to see if it takes off or not.

So anyone have any buring or curious thoughts they want to ask?

Like why is the sky blue or what are stem cells anyway

My daughter ask me that exact question the other day !

Why is the sky blue!?!?"

Because of the gases that make up our atmosphere. The higher up you go, the less atmospheric gases there are, and the blacker the sky becomes.

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

Incorrect, speed of the wheels is irrelevant, if it was wheel driven then youd be correct. "

My dastardly plan is working

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By (user no longer on site) OP
over a year ago

Shit my bed you're right!

The planes not moving !

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

Incorrect, speed of the wheels is irrelevant, if it was wheel driven then youd be correct.

My dastardly plan is working

It is but I know I'm right, physics 101

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated."

This has been done just not sure what show it was that did it and yes they can. The moon is very slowly moving away from us how long would it take for it to reach a distance that it would break our orbit.

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By (user no longer on site)
over a year ago

"Shit my bed you're right!

The planes not moving !"

Use the quote button so we know who you are answering, it’s not rocket science

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By *uicy72Woman
over a year ago

North Colchester

"I figure why not try spread a bit of knowledge with the love too.

Any on have any science based questions I'll give you an answer or find you an easy(ish) way to get one.

May try doing this a few times to see if it takes off or not.

So anyone have any buring or curious thoughts they want to ask?

Like why is the sky blue or what are stem cells anyway

My daughter ask me that exact question the other day !

Why is the sky blue!?!?

Because of the gases that make up our atmosphere. The higher up you go, the less atmospheric gases there are, and the blacker the sky becomes. "

Thanks I’ll tell her

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By (user no longer on site) OP
over a year ago

The other dude mentioned it really well, I believe the effect is Rayleigh scattering or something. If she's bored you can look into it too.

Ask her if she thinks it has anything to do with the colour of water too to get her reading !

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By (user no longer on site)
over a year ago

"Shit my bed you're right!

The planes not moving !

Use the quote button so we know who you are answering, it’s not rocket science

Let’s not get ahead of ourselves with rockets, we’re still working on how the wheels of a plane do fuck all

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By *andonmessMan
over a year ago

A world all of his own

"I figure why not try spread a bit of knowledge with the love too.

Any on have any science based questions I'll give you an answer or find you an easy(ish) way to get one.

May try doing this a few times to see if it takes off or not.

So anyone have any buring or curious thoughts they want to ask?

Like why is the sky blue or what are stem cells anyway

My daughter ask me that exact question the other day !

Why is the sky blue!?!?

Because of the gases that make up our atmosphere. The higher up you go, the less atmospheric gases there are, and the blacker the sky becomes.

Thanks I’ll tell her

lol, no worries.

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By (user no longer on site) OP
over a year ago

Were all female while we develop or a certain stage and then we become male.

My guess (it's a guess) is the nips are there before we change or have our male chromosome go hey home on this one needs a penis

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

Incorrect, speed of the wheels is irrelevant, if it was wheel driven then youd be correct. "

I don't understand this. How can a plane take off if it is stationary relative to the ground and by extension, the air around the wings?

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By (user no longer on site) OP
over a year ago

I cannae keep up captain! The first and to the subsequent people!

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By *hloe sussexTV/TS
over a year ago

Larne

"Were all female while we develop or a certain stage and then we become male.

My guess (it's a guess) is the nips are there before we change or have our male chromosome go hey home on this one needs a penis"
we develop nipples before our genitals so yes x

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By (user no longer on site)
over a year ago

[Removed by poster at 19/07/18 00:30:46]

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By (user no longer on site) OP
over a year ago

This has freaked me out before and I'm going to go try find an article on it.

Pretty sure it's a crazy long time since there's counter forces? I don't remember, but it is fucking ages. Brb

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

Incorrect, speed of the wheels is irrelevant, if it was wheel driven then youd be correct.

I don't understand this. How can a plane take off if it is stationary relative to the ground and by extension, the air around the wings?"

https://m.youtube.com/watch?v=01Q83yxdDaI watch this aeroplan on a tread mill

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By *andonmessMan
over a year ago

A world all of his own

"Were all female while we develop or a certain stage and then we become male.

My guess (it's a guess) is the nips are there before we change or have our male chromosome go hey home on this one needs a penis we develop nipples before our genitals so yes x"

Like me, you're probably imagining the aircraft, stationary, but on a massive treadmill, spinning at the same speed as the wheels.

Now imagine that the aircraft is moving along a moving runway (treadmill) which is matching the speed of the wheels.

It's still not an exact question, because if the wheel speed is still lower than the equivalent stall speed, the aircraft still won't take off.

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

Incorrect, speed of the wheels is irrelevant, if it was wheel driven then youd be correct. "

Sneaky question wording...

I read it as the treadmill counteracting the forward movement of the plane, which can't actually happen in the real world because aircraft wheels aren't powered. The forward force comes from the engines, which act on the air, not the ground. If this plane throttled up it's engines it would start to move regardless of what the treadmill did.

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By (user no longer on site)
over a year ago

how are the gas planets actually planets if they're made of gas?

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By (user no longer on site) OP
over a year ago

Alright! This is what I was hoping would happen with people who definitely know more jumping in to answer

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By *ensuallover1000Man
over a year ago

Somewhere In The Ether…

Talking of science, specifically astronomy, scientists have just discovered a new series of moons orbiting the gaseous giant, Jupiter.

Here’s the weird bit though; One of the said moons is apparently on a collision path with the others....

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

Incorrect, speed of the wheels is irrelevant, if it was wheel driven then youd be correct.

Sneaky question wording...

Wahey, someone understands

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By (user no longer on site) OP
over a year ago

They're just bodies of mass of a certain size? (Rip Pluto)

So they're just coalesced and gravity bound bundles of gas, I think some have cores that be solid too.

One of the others with more physics will give a more nuanced answer I hope

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By (user no longer on site) OP
over a year ago

Really??

That's pretty cool! Do they have a time scale? Or a guess as to what will happen?

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

Won't ever happen. The rate at which the moon is receding will eventually drop to zero and then it will start getting closer again. And no, it won't hit Earth; eventually it will stop closing and start to recede. It's all tied up with tidal forces and their effect on Earth's rotation (which is currently getting slower, btw).

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By (user no longer on site)
over a year ago

"some have cores that be solid too."

All science should be spoken about in a pirate voice.

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By (user no longer on site)
over a year ago

What came first the egg or the chicken ?

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By (user no longer on site) OP
over a year ago

"some have cores that be solid too.

All science should be spoken about in a pirate voice."

Ahh I feel like we've an accord

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By *uicy72Woman
over a year ago

North Colchester

"The other dude mentioned it really well, I believe the effect is Rayleigh scattering or something. If she's bored you can look into it too.

Ask her if she thinks it has anything to do with the colour of water too to get her reading !"

She thinks I know everything lol

She won’t look into stuff she expects me to know the answer or find it

Teenagers

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By (user no longer on site)
over a year ago

"What came first the egg or the chicken ?

Ad I understand it, the current thinking is that the egg came first.

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By (user no longer on site) OP
over a year ago

"What came first the egg or the chicken ?

The egg in general

Since. Dinosaurs

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

Incorrect, speed of the wheels is irrelevant, if it was wheel driven then youd be correct.

I don't understand this. How can a plane take off if it is stationary relative to the ground and by extension, the air around the wings?

https://m.youtube.com/watch?v=01Q83yxdDaI watch this aeroplan on a tread mill "

That particular vid ends before the experiment does, but I've seen it before anyway.

If you watch to the end of this one you'll see that the aeroplane is most definitely moving in relation to the ground, so they haven't proved the theory.

https://youtu.be/YORCk1BN7QY

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By (user no longer on site)
over a year ago

"how are the gas planets actually planets if they're made of gas?"

Being made of rock doesn't factor into the definition of a planet.

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By (user no longer on site) OP
over a year ago

"The other dude mentioned it really well, I believe the effect is Rayleigh scattering or something. If she's bored you can look into it too.

Ask her if she thinks it has anything to do with the colour of water too to get her reading !

She thinks I know everything lol

She won’t look into stuff she expects me to know the answer or find it

Teenagers

At least she's curious! That's definitely a good thing. Shell figure it out I'm sure

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By *ensuallover1000Man
over a year ago

Somewhere In The Ether…

"Really??

That's pretty cool! Do they have a time scale? Or a guess as to what will happen?"

The moon in question has been named, Valetudo but it’s presently unclear when exactly the collision will take place. As astronomical timescales are so vast, it may be thousands of years (or even more).

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By (user no longer on site)
over a year ago

[Removed by poster at 19/07/18 00:40:27]

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By (user no longer on site) OP
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

I hope you're both proud of yourselves!

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By *andonmessMan
over a year ago

A world all of his own

"The other dude mentioned it really well, I believe the effect is Rayleigh scattering or something. If she's bored you can look into it too.

Ask her if she thinks it has anything to do with the colour of water too to get her reading !

She thinks I know everything lol

She won’t look into stuff she expects me to know the answer or find it

Teenagers

Oh well you're laughing then, just make up any old shit, and so long as you sound like you know what you're talking about, she'll believe it and not research it

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By (user no longer on site) OP
over a year ago

"Really??

That's pretty cool! Do they have a time scale? Or a guess as to what will happen?

I'm so sure that's the name of a Japanese martial arts circuit, which sort of is fitting

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By (user no longer on site)
over a year ago

"What came first the egg or the chicken ?

The egg in general

Since. Dinosaurs"

But where did the egg come from in the first place?

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

Incorrect, speed of the wheels is irrelevant, if it was wheel driven then youd be correct.

I don't understand this. How can a plane take off if it is stationary relative to the ground and by extension, the air around the wings?

https://m.youtube.com/watch?v=01Q83yxdDaI watch this aeroplan on a tread mill

That particular vid ends before the experiment does, but I've seen it before anyway.

If you watch to the end of this one you'll see that the aeroplane is most definitely moving in relation to the ground, so they haven't proved the theory.

https://youtu.be/YORCk1BN7QY"

A plane on a moving treadmill cannot ever be stationary. It's physically impossible. If the plane's engines aren't pushing it forwards, the treadmill will slowly carry it backwards - if the wheel axles were frictionless, the wheels would just spin, but since they're not the plane will kove a bit. If the plane throttles up it's engines, it WILL start to move forward.

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By *yd Charisse 10Woman
over a year ago

Manchester

Ok my favourite question is .y in all sci-fi is all the ships the same way up the is no up and down

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By (user no longer on site) OP
over a year ago

"What came first the egg or the chicken ?

The egg in general

Since. Dinosaurs

But where did the egg come from in the first place?

Xx "

Again a guess, but looking at frogs and some sea creatures they have eggs too without shells as we know them. Perhaps they were eventually calcified to give a better protective layer outside of whatever jelly.

Then it maybe caught on like jeans did

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By (user no longer on site) OP
over a year ago

"Ok my favourite question is .y in all sci-fi is all the ships the same way up the is no up and down "

Yeah I really enjoy that there's not a single fucking space captain who's thinking fuck this I'm being upside down. It's like top gun didn't happen

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

Yes, simple physics "

Sorry but no it can't.

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By (user no longer on site)
over a year ago

"Ok my favourite question is .y in all sci-fi is all the ships the same way up the is no up and down "

Because it would confuse the reader/viewer. Same reason most sci-fi doesn't use real Newtonian physics when ships move and turn.

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

Incorrect, speed of the wheels is irrelevant, if it was wheel driven then youd be correct.

I don't understand this. How can a plane take off if it is stationary relative to the ground and by extension, the air around the wings?

https://m.youtube.com/watch?v=01Q83yxdDaI watch this aeroplan on a tread mill

That particular vid ends before the experiment does, but I've seen it before anyway.

If you watch to the end of this one you'll see that the aeroplane is most definitely moving in relation to the ground, so they haven't proved the theory.

https://youtu.be/YORCk1BN7QY

I understood it to be a hypothetical situation in which a treadmill is able to keep an aeroplane perfectly stationary in relation to the ground.

Accepting it to be impossible is just saying that if a plane can move forwards then it can take off, which we all knew before : )

Anyway. Eggs

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By (user no longer on site) OP
over a year ago

Alright night guys. Please don't attack each other.

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By (user no longer on site)
over a year ago

"What came first the egg or the chicken ?

The egg in general

Since. Dinosaurs

But where did the egg come from in the first place?

Then it maybe caught on like jeans did"

Dinosaurs also gave birth via eggs, and predate the first bird Archaeopteryx by a long time.

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By *uicy72Woman
over a year ago

North Colchester

"The other dude mentioned it really well, I believe the effect is Rayleigh scattering or something. If she's bored you can look into it too.

Ask her if she thinks it has anything to do with the colour of water too to get her reading !

She thinks I know everything lol

She won’t look into stuff she expects me to know the answer or find it

Teenagers

At least she's curious! That's definitely a good thing. Shell figure it out I'm sure"

She’s always asking me questions that I can’t answer !

I just say google it

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

Incorrect, speed of the wheels is irrelevant, if it was wheel driven then youd be correct.

I don't understand this. How can a plane take off if it is stationary relative to the ground and by extension, the air around the wings?

https://m.youtube.com/watch?v=01Q83yxdDaI watch this aeroplan on a tread mill

That particular vid ends before the experiment does, but I've seen it before anyway.

If you watch to the end of this one you'll see that the aeroplane is most definitely moving in relation to the ground, so they haven't proved the theory.

https://youtu.be/YORCk1BN7QY

I understood it to be a hypothetical situation in which a treadmill is able to keep an aeroplane perfectly stationary in relation to the ground.

Accepting it to be impossible is just saying that if a plane can move forwards then it can take off, which we all knew before : )

Anyway. Eggs

If it were possible for a treadmill to keep a plane stationary, then no, the plane wouldn't take off. However, a treadmill can't keep a plane stationary

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By *uicy72Woman
over a year ago

North Colchester

"The other dude mentioned it really well, I believe the effect is Rayleigh scattering or something. If she's bored you can look into it too.

Ask her if she thinks it has anything to do with the colour of water too to get her reading !

She thinks I know everything lol

She won’t look into stuff she expects me to know the answer or find it

Teenagers

Oh well you're laughing then, just make up any old shit, and so long as you sound like you know what you're talking about, she'll believe it and not research it

Couldn’t do that

I’ve always told my kids the truth if they don’t know I’ll look it up or tell them to

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By *yd Charisse 10Woman
over a year ago

Manchester

"Ok my favourite question is .y in all sci-fi is all the ships the same way up the is no up and down

Because it would confuse the reader/viewer. Same reason most sci-fi doesn't use real Newtonian physics when ships move and turn."
so they think we are all donkey

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

Incorrect, speed of the wheels is irrelevant, if it was wheel driven then youd be correct.

I don't understand this. How can a plane take off if it is stationary relative to the ground and by extension, the air around the wings?

https://m.youtube.com/watch?v=01Q83yxdDaI watch this aeroplan on a tread mill

That particular vid ends before the experiment does, but I've seen it before anyway.

If you watch to the end of this one you'll see that the aeroplane is most definitely moving in relation to the ground, so they haven't proved the theory.

https://youtu.be/YORCk1BN7QY

I understood it to be a hypothetical situation in which a treadmill is able to keep an aeroplane perfectly stationary in relation to the ground.

Accepting it to be impossible is just saying that if a plane can move forwards then it can take off, which we all knew before : )

Anyway. Eggs

If it were possible for a treadmill to keep a plane stationary, then no, the plane wouldn't take off. However, a treadmill can't keep a plane stationary

Yeah, got that now.

Sneaky trick question

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By (user no longer on site)
over a year ago

"Ok my favourite question is .y in all sci-fi is all the ships the same way up the is no up and down

Because it would confuse the reader/viewer. Same reason most sci-fi doesn't use real Newtonian physics when ships move and turn.so they think we are all donkey "

How objects move is space is completely different to how they move on earth. Most people don't understand the difference.

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By (user no longer on site)
over a year ago

If god created the sun on the fourth day, how had four days passed?

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By (user no longer on site)
over a year ago

"If god created the sun on the fourth day, how had four days passed?

Religion is bollocks.

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By (user no longer on site)
over a year ago

Apparently god made plants before the sun as well. I'd love to know how that worked

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By (user no longer on site)
over a year ago

I like the stone paradox.

Can an omnipotent entity, e.g. God, create an object that is too heavy for him to move?

Whether you answer yes or no, either way the result is that the entity is not omnipotent.

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By (user no longer on site)
over a year ago

"I like the stone paradox.

Can an omnipotent entity, e.g. God, create an object that is too heavy for him to move?

Whether you answer yes or no, either way the result is that the entity is not omnipotent."

Like the whole unstoppable force vs an immovable object thing?

For an object to be immovable it would need to have infinite mass.

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By *andonmessMan
over a year ago

A world all of his own

"The other dude mentioned it really well, I believe the effect is Rayleigh scattering or something. If she's bored you can look into it too.

Ask her if she thinks it has anything to do with the colour of water too to get her reading !

She thinks I know everything lol

She won’t look into stuff she expects me to know the answer or find it

Teenagers

Oh well you're laughing then, just make up any old shit, and so long as you sound like you know what you're talking about, she'll believe it and not research it

Couldn’t do that

I’ve always told my kids the truth if they don’t know I’ll look it up or tell them to"

Probably a good job I'm not a parent then

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By (user no longer on site)
over a year ago

Can dogs look up?

Do frogs have water tight ass holes?

Do bears shit in the woods?

Why do we keep using Aspartame in fizzy drinks and sweets when it has known bad effects to humans?

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By (user no longer on site)
over a year ago

"Can dogs look up?

Do frogs have water tight ass holes?

Do bears shit in the woods?

Why do we keep using Aspartame in fizzy drinks and sweets when it has known bad effects to humans?"

Spot the pisstake....

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By *uicy72Woman
over a year ago

North Colchester

"The other dude mentioned it really well, I believe the effect is Rayleigh scattering or something. If she's bored you can look into it too.

Ask her if she thinks it has anything to do with the colour of water too to get her reading !

She thinks I know everything lol

She won’t look into stuff she expects me to know the answer or find it

Teenagers

Oh well you're laughing then, just make up any old shit, and so long as you sound like you know what you're talking about, she'll believe it and not research it

Couldn’t do that

I’ve always told my kids the truth if they don’t know I’ll look it up or tell them to

Probably a good job I'm not a parent then

Definitely!

Always tell the truth

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By (user no longer on site)
over a year ago

"Can dogs look up?

Do frogs have water tight ass holes?

Do bears shit in the woods?

Why do we keep using Aspartame in fizzy drinks and sweets when it has known bad effects to humans?

Spot the pisstake...."

Aspartame hasn't been found to have bad effects in humans, but a lot of people insist it has anyway.

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By (user no longer on site) OP
over a year ago

"I like the stone paradox.

Can an omnipotent entity, e.g. God, create an object that is too heavy for him to move?

Whether you answer yes or no, either way the result is that the entity is not omnipotent."

They're the same thing aren't they but with a different frame of reference

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By (user no longer on site)
over a year ago

Shall we create a black hole?

We only need to generate 1,100dB to set it off

We’ll need a few amplifiers and some good batteries

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By (user no longer on site)
over a year ago

"I like the stone paradox.

Can an omnipotent entity, e.g. God, create an object that is too heavy for him to move?

Whether you answer yes or no, either way the result is that the entity is not omnipotent.

Like the whole unstoppable force vs an immovable object thing?

For an object to be immovable it would need to have infinite mass. "

Kind of but it's hypothetical. If God can create a stone which is too heavy for him to move, then he isn't omnipotent, as he can't move the stone. If he can't create a stone which is too heavy for him to move, then again he isn't omnipotent.

It's also logically impossible for God to be both omniscient and omnipotent. If God knows what he is doing next Thursday, then he's not omnipotent because he is tied to future events. If he is free to do whatever he wants next Thursday, then he's not omniscient.

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By (user no longer on site)
over a year ago

"Shall we create a black hole?

We only need to generate 1,100dB to set it off

We’ll need a few amplifiers and some good batteries

How do you propose to create a black hole with sound?

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By *yd Charisse 10Woman
over a year ago

Manchester

"Ok my favourite question is .y in all sci-fi is all the ships the same way up the is no up and down

Because it would confuse the reader/viewer. Same reason most sci-fi doesn't use real Newtonian physics when ships move and turn.so they think we are all donkey

How objects move is space is completely different to how they move on earth. Most people don't understand the difference."
I do and ism not that bright

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By *uicy72Woman
over a year ago

North Colchester

"I like the stone paradox.

Can an omnipotent entity, e.g. God, create an object that is too heavy for him to move?

Whether you answer yes or no, either way the result is that the entity is not omnipotent.

They're the same thing aren't they but with a different frame of reference"

I thought you were off to bed !

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By (user no longer on site)
over a year ago

Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

The treadmill is a stationary object and in turn the aircraft would also be stationary therefore not air would be moving over the wing in order to create lift and the speed of the belt on the treadmill would only be relative to the wheels on the aircraft. The result being that it would be impossible for takeoff to be achieved.

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

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By (user no longer on site)
over a year ago

"I like the stone paradox.

Can an omnipotent entity, e.g. God, create an object that is too heavy for him to move?

Whether you answer yes or no, either way the result is that the entity is not omnipotent.

They're the same thing aren't they but with a different frame of reference

I thought you were off to bed !"

It's omnipotence

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By (user no longer on site)
over a year ago

"What came first the egg or the chicken ?

The egg in general

Since. Dinosaurs"

How did the egg arrive first?

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By (user no longer on site)
over a year ago

"Ok my favourite question is .y in all sci-fi is all the ships the same way up the is no up and down

Because it would confuse the reader/viewer. Same reason most sci-fi doesn't use real Newtonian physics when ships move and turn.so they think we are all donkey

How objects move is space is completely different to how they move on earth. Most people don't understand the difference.I do and ism not that bright "

It's not a question of intelligence, it's a question of knowledge. How objects move in a vacuum is outside almost everyone's everyday experience, so unless they've learned about it they tend to expect spacecraft to move like aircraft.

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By *mushkittenWoman
over a year ago

manchester

Ingestation of a gestational twin 1 child born 2 totally different sets of DNA in blood n bodily fluids fact or fiction or a freak of nature called a cimera ????????

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By (user no longer on site)
over a year ago

"Shall we create a black hole?

We only need to generate 1,100dB to set it off

We’ll need a few amplifiers and some good batteries

How do you propose to create a black hole with sound?"

The theory is that a sound of 1100db would create so much energy that it would generate a massive amount of gravity, enough gravity to create a black hole.

Faithless once triggered earthquake alarms through playing an exceptionally loud gig, I seem to remember reading omce.

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill."

The only moving part would be the wheels relative to the belt on the stationary treadmill there for the rest of the aircraft is stationary which equals no lift. Its basic physics. Every action has an equal and opposite reaction which in this case is between the belt and the wheels and nothing more.

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By *ighland gentlemanMan
over a year ago

Ardgay

"Ok my favourite question is .y in all sci-fi is all the ships the same way up the is no up and down

Because it would confuse the reader/viewer. Same reason most sci-fi doesn't use real Newtonian physics when ships move and turn."

Also due to the lack of an atmosphere, there would be no ability for sound to travel so no big explosion noises as are common in sci-fi movies

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By (user no longer on site)
over a year ago

"Shall we create a black hole?

We only need to generate 1,100dB to set it off

We’ll need a few amplifiers and some good batteries

How do you propose to create a black hole with sound?"

Firstly 1100dB is so unimaginably loud, it will never happen.

a sound wave that strong would have to compress air so dense that the rest mass plus the kinetic energy would mean that the mass of say a metre cubed of air would fall inside it’s own Schwarzschild radius. When a mass of an object is compressed within it’s Schwarzschild radius, the escape velocity required to escape the sphere of matter the compression creates would exceed the speed of light, thus a black hole is formed.

We’re talking insane amounts of power to create that level of dB, impossible levels of power.....

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

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By (user no longer on site)
over a year ago

Good luck with the aeroplane and black holes etc... I couldn’t get an answer about a little egg

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By *alking HeadMan
over a year ago

Bolton

"Shall we create a black hole?

We only need to generate 1,100dB to set it off

We’ll need a few amplifiers and some good batteries

How do you propose to create a black hole with sound?"

Turn it up to 11.

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

The question states that the treadmill matches the wheel speed required to take off therefore the drive must come from the mill not the engines on the aircraft. Its not a trick question at all.

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By (user no longer on site)
over a year ago

"Shall we create a black hole?

We only need to generate 1,100dB to set it off

We’ll need a few amplifiers and some good batteries

How do you propose to create a black hole with sound?

The theory is that a sound of 1100db would create so much energy that it would generate a massive amount of gravity, enough gravity to create a black hole.

Faithless once triggered earthquake alarms through playing an exceptionally loud gig, I seem to remember reading omce."

Most people haven’t experienced much over 130dB.....awesome things start to happen with sound pressure level at higher levels.

I was massively into audio not too long back and had subwoofers capable of over 150dB....the vibrations at that level blur your vision, make your hair look like you’re in a wind tunnel.....it’s great fun

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By (user no longer on site)
over a year ago

"Shall we create a black hole?

We only need to generate 1,100dB to set it off

We’ll need a few amplifiers and some good batteries

How do you propose to create a black hole with sound?

Turn it up to 11.

The volume control on BBC iPlayer goes up to 11 : ) I always wondered if that was somebody having a joke

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

The question states that the treadmill matches the wheel speed required to take off therefore the drive must come from the mill not the engines on the aircraft. Its not a trick question at all. "

The question is wrong. What it's describing is physically impossible.

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

The wheels would rotate in relation to the thrust of the engines. If the threadmill is in direct counter rotation I’m no genius but it’s clearly Ryanair and going nowhere as usual

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

The wheels would rotate in relation to the thrust of the engines. If the threadmill is in direct counter rotation I’m no genius but it’s clearly Ryanair and going nowhere as usual

No, they won't. The wheels on aircraft aren't powered. They don't provide any motive force.

(closed, thread got too big)

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By (user no longer on site)
over a year ago

"Shall we create a black hole?

We only need to generate 1,100dB to set it off

We’ll need a few amplifiers and some good batteries

How do you propose to create a black hole with sound?

The theory is that a sound of 1100db would create so much energy that it would generate a massive amount of gravity, enough gravity to create a black hole.

Faithless once triggered earthquake alarms through playing an exceptionally loud gig, I seem to remember reading omce.

Most people haven’t experienced much over 130dB.....awesome things start to happen with sound pressure level at higher levels.

That's insanely loud

I engineer live music and usually clock myself at around 85-90.

Db is a weird measurement though. Conversation is something like 60db I think, which makes it more than as loud as a typical gig, if you take Db to equate to volume. Even a pin dropping is weirdly high on a Db scale.

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By (user no longer on site)
over a year ago

*more than half as loud ...

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By (user no longer on site)
over a year ago

"Shall we create a black hole?

We only need to generate 1,100dB to set it off

We’ll need a few amplifiers and some good batteries

How do you propose to create a black hole with sound?

The theory is that a sound of 1100db would create so much energy that it would generate a massive amount of gravity, enough gravity to create a black hole.

Faithless once triggered earthquake alarms through playing an exceptionally loud gig, I seem to remember reading omce.

Most people haven’t experienced much over 130dB.....awesome things start to happen with sound pressure level at higher levels.

That's insanely loud

I engineer live music and usually clock myself at around 85-90.

Yeah it’s not like 120dB is twice as loud as 60dB.

Once you’re above 140dB with speakers it gets harder to gain each dB, needing to effectively double power output gain 3dB.

1000 watts will get you 140dB, you then need 2000 for 143, 4000 for 146 and so on.......it becomes a very expensive hobby when you start chasing numbers.

There’s a lot of variables to achieving those numbers but that’s the general jist of it

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

The wheels would rotate in relation to the thrust of the engines. If the threadmill is in direct counter rotation I’m no genius but it’s clearly Ryanair and going nowhere as usual

No, they won't. The wheels on aircraft aren't powered. They don't provide any motive force. "

Didn’t say they were powered ... just that they would rotate... if they didn’t then no plane would ever take off... like everything else friction comes into it but thankfully I’m no genius but I do know a plane won’t take off without friction...

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

The wheels would rotate in relation to the thrust of the engines. If the threadmill is in direct counter rotation I’m no genius but it’s clearly Ryanair and going nowhere as usual

No, they won't. The wheels on aircraft aren't powered. They don't provide any motive force. "

Exactly. And even if we assume that the aircraft is physically attached to the treadmill and the mill is turn off and the power comes from the aircrafts engines, the amount of drag caused by the mill on the aircraft would stop any chance of take off be achieved. The plane ain't going anywhere!lol

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By *yd Charisse 10Woman
over a year ago

Manchester

"Ok my favourite question is .y in all sci-fi is all the ships the same way up the is no up and down

Because it would confuse the reader/viewer. Same reason most sci-fi doesn't use real Newtonian physics when ships move and turn.

Also due to the lack of an atmosphere, there would be no ability for sound to travel so no big explosion noises as are common in sci-fi movies "
yes no one can hear you scream in space see we are all think

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

The wheels would rotate in relation to the thrust of the engines. If the threadmill is in direct counter rotation I’m no genius but it’s clearly Ryanair and going nowhere as usual

No, they won't. The wheels on aircraft aren't powered. They don't provide any motive force.

If we ever achieve lift off God help us trying to land

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

The wheels would rotate in relation to the thrust of the engines. If the threadmill is in direct counter rotation I’m no genius but it’s clearly Ryanair and going nowhere as usual

No, they won't. The wheels on aircraft aren't powered. They don't provide any motive force.

If we ever achieve lift off God help us trying to land

"
lmfao

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By (user no longer on site)
over a year ago

"Shall we create a black hole?

We only need to generate 1,100dB to set it off

We’ll need a few amplifiers and some good batteries

How do you propose to create a black hole with sound?

The theory is that a sound of 1100db would create so much energy that it would generate a massive amount of gravity, enough gravity to create a black hole.

Faithless once triggered earthquake alarms through playing an exceptionally loud gig, I seem to remember reading omce.

Most people haven’t experienced much over 130dB.....awesome things start to happen with sound pressure level at higher levels.

That's insanely loud

I engineer live music and usually clock myself at around 85-90.

Yeah it’s not like 120dB is twice as loud as 60dB.

Once you’re above 140dB with speakers it gets harder to gain each dB, needing to effectively double power output gain 3dB.

1000 watts will get you 140dB, you then need 2000 for 143, 4000 for 146 and so on.......it becomes a very expensive hobby when you start chasing numbers.

There’s a lot of variables to achieving those numbers but that’s the general jist of it

1000w gets you 140db ... this is where my tech knowledge falls down. Our venue has a 13k rig but 90db is pretty close to the limit of what it can put out.

(closed, thread got too big)

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

The wheels would rotate in relation to the thrust of the engines. If the threadmill is in direct counter rotation I’m no genius but it’s clearly Ryanair and going nowhere as usual

No, they won't. The wheels on aircraft aren't powered. They don't provide any motive force.

If we ever achieve lift off God help us trying to land

lmfao"

Im currently sat looking at an A321 and thinking we might have to order in a treadmill lol

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

The wheels would rotate in relation to the thrust of the engines. If the threadmill is in direct counter rotation I’m no genius but it’s clearly Ryanair and going nowhere as usual

No, they won't. The wheels on aircraft aren't powered. They don't provide any motive force.

I think the problem is that people are envisioning the plane like it's a car with wings. If you're in a car and hit the accelerator to a level that gives you 30mph, and you're on a treadmill the opposite direction at 30mph, you'll be stationary. The same won't happen in a plane.

If the plane's engines aren't providing thrust, the plane will move backwards. If the wheel axles were frictionless then the wheels would spin and the plane would be stationary, but they're not so the plane will be dragged backwards. If you apply ANY THRUST AT ALL, the plane will move forwards. This is because the plane's engines apply force to the air, not the ground, so it will move regardless of what the ground beneath it's wheels is doing. If the grou d is a treadmill going backwards, the wheels will just spin faster than you'd expect for a given speed of the plane.

So, if you throttle up to a level that would move the plane forward at 30mph, it WILL move forward at 30mph. If it's on a treadmill going backwards at 30mph, then the wheels will spin as though the plane was moving at 60mph.

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By (user no longer on site)
over a year ago

I like teasing flatearthers...especially those thinking their nikon p900 does a better job. Flattard fuckwits, with this:

https://www.youtube.com/watch?v=DCfDMU92JqI

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By (user no longer on site) OP
over a year ago

"I like the stone paradox.

Can an omnipotent entity, e.g. God, create an object that is too heavy for him to move?

Whether you answer yes or no, either way the result is that the entity is not omnipotent.

They're the same thing aren't they but with a different frame of reference

I thought you were off to bed !"

Haha so did I but I ended up not being able to sleep!

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

The wheels would rotate in relation to the thrust of the engines. If the threadmill is in direct counter rotation I’m no genius but it’s clearly Ryanair and going nowhere as usual

No, they won't. The wheels on aircraft aren't powered. They don't provide any motive force.

There you go.. just tell all the airplane manufacturers they don’t need wheels and you will make billions

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

The wheels would rotate in relation to the thrust of the engines. If the threadmill is in direct counter rotation I’m no genius but it’s clearly Ryanair and going nowhere as usual

No, they won't. The wheels on aircraft aren't powered. They don't provide any motive force.

There you go.. just tell all the airplane manufacturers they don’t need wheels and you will make billions

The wheels aren't there to drive the plane, they're to allow it to move easily rather than scraping along the ground...

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By (user no longer on site)
over a year ago

"I like teasing flatearthers...especially those thinking their nikon p900 does a better job. Flattard fuckwits, with this:

https://www.youtube.com/watch?v=DCfDMU92JqI"

No, not the flat earth morons...

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By (user no longer on site) OP
over a year ago

"Ingestation of a gestational twin 1 child born 2 totally different sets of DNA in blood n bodily fluids fact or fiction or a freak of nature called a cimera ????????

I'm not sure what you're asking sorry!

But you can have non identical twins. So they do exist.

As for absorbing, I can't see it really happening so easily, mainly because we wouldn't really test for it often. I'm sure there is a case of it though.

Human human chimera sounds like a fun band name though so we have that.

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By (user no longer on site)
over a year ago

"Aircraft on treadmill.

Lift is created via a pressure differential. This happens by the movement of air of the aerofoil design of the wing.

As I explained earlier, an aircraft can't be stationary on a moving treadmill.

It's a trick question. The aeroplane wouldn't be stationary, as it's the engines that drive it forward not the wheels.

The wheels would rotate in relation to the thrust of the engines. If the threadmill is in direct counter rotation I’m no genius but it’s clearly Ryanair and going nowhere as usual

No, they won't. The wheels on aircraft aren't powered. They don't provide any motive force.

There you go.. just tell all the airplane manufacturers they don’t need wheels and you will make billions

The wheels aren't there to drive the plane, they're to allow it to move easily rather than scraping along the ground..."

Oh ok.. try to fly or land a plane without them.. guess it will be a bumpy ride

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By (user no longer on site)
over a year ago

Chimeras do happen occasionally. Very early in gestation of non-identical twins, the two balls of cells can fuse into one blob that develops into a single child with different DNA in different parts of their body. I imagine it happens with identical twins as well, but since they come from a single egg amd sperm to begin with their DNA is identical, so an identical-twin chimera wouldn't be detectable through genetic tests.

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By (user no longer on site)
over a year ago

"I like teasing flatearthers...especially those thinking their nikon p900 does a better job. Flattard fuckwits, with this:

https://www.youtube.com/watch?v=DCfDMU92JqI

No, not the flat earth morons..."

5k as opposed to 3k like this video...of the clouds going 'behind' the sun

https://www.youtube.com/watch?v=wfudi3ikZPw

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

This

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By *alking HeadMan
over a year ago

Bolton

It is possible, theoretically, to keep a plane at a complete standstill (or as near as damn it) via a rotating belt. The friction twixt the floor and the wheels turns the wheels. But it will start to drag the plane backwards due to friction I the wheel bearings. You adjust the thrust in the engines to counteract the plane being dragged back. So. Apparently no air flow over the aerofoils to give the lift. However if its a propeller driven plane, air will be pushed past the wings so once enough air is pushed past, enough lift would be produced. But you would be running the propellers a lot faster than you would if on a normal runway. If its a het engine, the thrust is behind the wings and so you wouldn't have the airflow over the wings. Scrap the entire experiment and use a Harrier Jumpjet. Its much easier.

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By *ait88Man
over a year ago

Plymouth

Aircraft on conveyor belt – yet again.

Aircraft are lifted up by the flow of air over their wings. Their engines produce forward motion, they don’t produce any lift at all. The VC10 passenger jets had the engines at the rear, as do some fighters; others force the air through their fuselages, and a few aircraft have “pusher” props mounted behind the wings.

My car is driven by its rear wheels. When I travel along a road in my car, the front wheels rotate at approximately the same speed as the back ones; they don’t rotate at random speeds, or not at all. This is because the weight of the car forces the front wheels onto the road surface, and the resulting friction between the tyre rubber and the tarmac forces the wheels to rotate. That’s why I can steer my car around corners. It the front (steering) wheels had no grip on the road, the car would only travel in a straight line.

A stationary aircraft’s wheels will be held down on a hypothetical conveyor belt in the same way. You can’t go up to a standing aircraft and rotate any of its undercarriage wheels by hand. They’re stuck to the tarmac by gravity.

The aircraft’s engine moves it forward ALONG THE BELT by forcing air from ahead to astern, using some sort of propeller or turbine. Remember, this air flow doesn’t generate any lift, it just causes forward motion. The wheels will rotate at a commensurable speed – they can’t freewheel or skid.

But the wheels are held onto the belt, which is moving backwards WITH RESPECT TO ITS SURROUNDINGS at the same commensurable speed.

The forward motion of the aircraft is cancelled by the rearward motion of the belt.

The aircraft is stationary WITH RESPECT TO ITS SURROUNDINGS. No air passes over the wings (only through the prop/turbo), no lift is generated, the aircraft can’t fly.

If the conveyor belt is started when the engine is idling, the friction between the wheels and the belt, caused by the aircraft’s weight, will hold it stationary on the belt, and move backwards with respect to its surroundings.

The engine moves the aircraft forwards along the belt, but the belt moves it backwards at the same speed. If you watch from the control tower, the aircraft will remain stationary.

There are two videos on Youtube. One shows a model aircraft on a conveyor belt. It takes off when the belt reaches a speed at which its vibrations bounce the wheels off the surface. The other is a ludicrous demo involving a pick-up truck towing a very long piece of cloth under a moving light aircraft at un-matched speeds.

More brain strain:

What would happen if an aircraft landed on a conveyor belt moving at the same speed in the opposite direction?

The belt speed is always the same as the aircraft’s speed in relation to the surroundings, e.g. the control tower. The belt slows as the aircraft slows.

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By (user no longer on site)
over a year ago

[Removed by poster at 19/07/18 03:55:16]

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By (user no longer on site)
over a year ago

"I figure why not try spread a bit of knowledge with the love too.

Any on have any science based questions I'll give you an answer or find you an easy(ish) way to get one.

May try doing this a few times to see if it takes off or not.

So anyone have any buring or curious thoughts they want to ask?

Like why is the sky blue or what are stem cells anyway"

Which is more complicated? Brain surgery or rocket science?

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By (user no longer on site)
over a year ago

"Aircraft on conveyor belt – yet again.

But the wheels are held onto the belt, which is moving backwards WITH RESPECT TO ITS SURROUNDINGS at the same commensurable speed.

The forward motion of the aircraft is cancelled by the rearward motion of the belt.

The aircraft is stationary WITH RESPECT TO ITS SURROUNDINGS. No air passes over the wings (only through the prop/turbo), no lift is generated, the aircraft can’t fly.

The engine moves the aircraft forwards along the belt, but the belt moves it backwards at the same speed. If you watch from the control tower, the aircraft will remain stationary.

More brain strain:

What would happen if an aircraft landed on a conveyor belt moving at the same speed in the opposite direction?

The belt speed is always the same as the aircraft’s speed in relation to the surroundings, e.g. the control tower. The belt slows as the aircraft slows.

It would appear to be static as soon as the wheels were on the belt but would still be travelling at speed until it came to a gradual stop. I think.

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By (user no longer on site)
over a year ago

"Jesus man, if you wanted to just say you can do that, then just say you can sorry that shit out. I didn't say I was a prefessor of every scientific field.

Just figured it would be a fun way to spend the night chatting"
Hey they are all science majors here you've started something now just don't talk politics

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

Yes, simple physics "

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By *eeBee67Man
over a year ago

Masked and Distant

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated."

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By *alandNitaCouple
over a year ago

Scunthorpe

"Good luck with the aeroplane and black holes etc... I couldn’t get an answer about a little egg

The egg / chicken question is easy... The egg was laid by the bird that the chicken evolved from. That's the way that evolution works, the genetic changes that create a different animal happen to the developing foetus (or equivalent).

Cal

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By *alandNitaCouple
over a year ago

Scunthorpe

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

An aircraft's engines push against the air, not against the ground. Is the engines run then the plane would move. If this wasn't the case, then the plane wouldn't be able to maintain its speed after its wheels left the ground (or flying as it's known).

Cal

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By *ait88Man
over a year ago

Plymouth

Yes. The plane would move - along the belt.

So what is the belt doing?

It's moving in the opposite direction at the same speed. isn't it?

So there's no air flow over the wings. No lift is generated. The plane can't take off.

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By (user no longer on site)
over a year ago

Once enough power exists to create lift, the aircraft will respond accordingly. Ie become airborne.

Recent fairground disasters, involving bouncy castles testify to such physical properties.

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By *rightonsteveMan
over a year ago

Brighton - even Hove!

Why is it that oxygen is light and so is hydrogen but when you bash two light things together you get water that’s quite heavy.

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By *rumpyMcFuckNuggetMan
over a year ago

Den of Iniquity

Is the Universe infinite or not??

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By *ait88Man
over a year ago

Plymouth

Good old Albert Einstein tried to explain this to us with his mass–energy equivalence formula, “E = M x C x C”. Essentially, he was saying that energy (bashing three gas molecules together) is converted to mass (like “weight” down here on Earth).

So the answer to your question is that the work that must be done to make a water molecule out of two hydrogen atoms and an oxygen atom, is converted to weight. This energy-derived weight is “included” in the water molecule, making it much heavier than the three separate atoms involved. How this “inclusion” happens isn’t yet known. The Standard Model of particle physics has no explanation. It’s one of the problems that we hope the Large Hadron Collider will help to solve.

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By *ait88Man
over a year ago

Plymouth

" Is the Universe infinite or not??

No. It’s potato-shaped. But its boundaries are suffuse. There is no “edge” or “skin” or boundary “wall”. If you moved outwards from the centre, the stars would get fewer and further between, until eventually you wouldn’t be able to see any. There may be other universes out there, floating about like ever-expanding bubbles of mass and energy.

Currently, the medium that the universe exists in, the “space-time” continuum, is regarded as being infinite because we can’t detect its boundaries.

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By *ait88Man
over a year ago

Plymouth

O.K. Twenty-odd posts left on this thread, so:

I’m standing still on the surface of Earth. How fast am I travelling in relation to a fixed point in space?

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By (user no longer on site)
over a year ago

I think the data is mostly all here if you have a calculator handy

https://youtu.be/buqtdpuZxvk

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By *rumpyMcFuckNuggetMan
over a year ago

Den of Iniquity

" Is the Universe infinite or not??

Currently, the medium that the universe exists in, the “space-time” continuum, is regarded as being infinite because we can’t detect its boundaries.

"
Incorrect . The actual answer is .

Nobody has a clue

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By (user no longer on site)
over a year ago

"I like the stone paradox.

Can an omnipotent entity, e.g. God, create an object that is too heavy for him to move?

Whether you answer yes or no, either way the result is that the entity is not omnipotent."

Fun joke

But not logically correct. If the answer is yes it asserts that this being has created an object which is too heavy for it to move. So the being can't be omnipotent. But the answer to the question is actually no. That's because this merely asserts what is already being claimed, that there is no object too heavy for this being. They cannot create an object too heavy for them because they are omnipotent. Such an object is impossible.

As for this crazy plane on treadmill hijinx... the plane would move forward and off the treadmill easily no matter what speed the treadmill was going at. Once the engines are started you could even power the treadmill up to go at hundreds of times the speed of the plane and the only thing it would do is fuck the wheels up

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By (user no longer on site)
over a year ago

Why do we keep using Aspartame in fizzy drinks and sweets when it has known bad effects to humans?"

Research shows nothing of the sort.

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By *y Favorite PornstarCouple
over a year ago

Basingstoke

Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue?

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By (user no longer on site)
over a year ago

How can the time it takes an object to fall from a height be calculated?

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By *hoenixAdAstraWoman
over a year ago

Hiding in the shadows

"O.K. Twenty-odd posts left on this thread, so:

I’m standing still on the surface of Earth. How fast am I travelling in relation to a fixed point in space?

It depends where that point is?

Nothing in space is fixed, it's all moving.

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By *rumpyMcFuckNuggetMan
over a year ago

Den of Iniquity

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue? "
Because some people think it's cool to pretend to believe utter bollocks than hard facts . They think it makes them more interesting . Just my opinion

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By (user no longer on site)
over a year ago

"How can the time it takes an object to fall from a height be calculated?"

All objects fall at the same speed regardless of mass. Acceleration is 9.8m/s/s so it's quite a simple calculation.

Except where wind resistance is a factor, eg a feather or a sheet of paper.

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By (user no longer on site)
over a year ago

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue? "

A lot of people take comfort from religious faith. Conspiracy theorists like to see a more mysterious and magical world. Other people have opinions which are so deeply held and reinforced that to let go of them threatens their very sense of identity and existence.

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By *y Favorite PornstarCouple
over a year ago

Basingstoke

[Removed by poster at 19/07/18 10:18:35]

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No. The plane is stationary so there is no airflow over the wings, therefore no lift is being generated.

Incorrect, speed of the wheels is irrelevant, if it was wheel driven then youd be correct.

I don't understand this. How can a plane take off if it is stationary relative to the ground and by extension, the air around the wings?"

It can’t. Not airflow no lift

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By *y Favorite PornstarCouple
over a year ago

Basingstoke

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue? Because some people think it's cool to pretend to believe utter bollocks than hard facts . They think it makes them more interesting . Just my opinion

Quite possibly. But i think a lot of people can't handle the idea that they are insignificant in the grand scheme of the universe and therefore want to believe that their lives are unique, facts, averages and logic need not apply to them.

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By *y Favorite PornstarCouple
over a year ago

Basingstoke

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue?

The latter sentence is the one that I intuitively relate to. Most people seem to want to be a unique individal with nothing a stranger could know about them based on laws of the physical universe.

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

Yes, simple physics "

No banoulis law requires airflow over the wing to create lift, therefore the aerofoil (wing) needs to move or the air over it needs to move. On a treadmill neither happens.

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By (user no longer on site)
over a year ago

"Ok so my question is: why do most people hate science and the facts it produces?"

Because science's evangelists misrepresent it, warp it, fail themselves to actually grasp it, and use it as a club to bash people over the head about a whole bunch of things that science itself isn't interested in claiming. With friends like that who needs enemies

"Why do people want to believe in things that are demonstrably untrue? "

What... like believing that the earth orbits the sun when it's demonstrably true that the sun passes through the sky?

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By *rumpyMcFuckNuggetMan
over a year ago

Den of Iniquity

"Ok so my question is: why do most people hate science and the facts it produces?

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By *inkyLondonpairCouple
over a year ago

London

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue?

The latter sentence is the one that I intuitively relate to. Most people seem to want to be a unique individal with nothing a stranger could know about them based on laws of the physical universe. "

I'm curious.

You're a Catholic aren't you? Are do you square believing in a faith with a science based world view?

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By *thwalescplCouple
over a year ago

brecon

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No.

Plane needs air passing over and under wings at speed to generate lift before it can take off.

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By (user no longer on site)
over a year ago

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

Yes, simple physics

No banoulis law requires airflow over the wing to create lift, therefore the aerofoil (wing) needs to move or the air over it needs to move. On a treadmill neither happens. "

It does though. The treadmill cannot stop the plane moving forwards as the movement comes from the jets/propellor, not the wheels.

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By *y Favorite PornstarCouple
over a year ago

Basingstoke

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue?

What... like believing that the earth orbits the sun when it's demonstrably true that the sun passes through the sky?

Totally agree. But why do people throw the baby out with the bath water? The scientific method is perfect, scientists aren't. Just because there are some bad statistics out there, people think all statistics are made up!

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By (user no longer on site)
over a year ago

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue?

The latter sentence is the one that I intuitively relate to. Most people seem to want to be a unique individal with nothing a stranger could know about them based on laws of the physical universe.

I'm curious.

You're a Catholic aren't you? Are do you square believing in a faith with a science based world view? "

You clearly haven't met a Catholic. They can square anything with anything

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By *y Favorite PornstarCouple
over a year ago

Basingstoke

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue?

The latter sentence is the one that I intuitively relate to. Most people seem to want to be a unique individal with nothing a stranger could know about them based on laws of the physical universe.

I'm curious.

You're a Catholic aren't you? Are do you square believing in a faith with a science based world view? "

You're a material philosophist right? So, you believe that eventually, science will explain everything? Our course it doesn't right now, so you take it on faith that it will.

I believe in a probalistic universe, not a deterministic one.

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By *inkyLondonpairCouple
over a year ago

London

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue?

The latter sentence is the one that I intuitively relate to. Most people seem to want to be a unique individal with nothing a stranger could know about them based on laws of the physical universe.

I'm curious.

You're a Catholic aren't you? Are do you square believing in a faith with a science based world view?

You clearly haven't met a Catholic. They can square anything with anything

Katie is actually from an Irish Catholic background, so I know plenty of them. They don't seem to differ from most other religious people who have the simultaneously ability to live a normal life whilst theoretically believing three impossible things before breakfast.

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By *y Favorite PornstarCouple
over a year ago

Basingstoke

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue?

The latter sentence is the one that I intuitively relate to. Most people seem to want to be a unique individal with nothing a stranger could know about them based on laws of the physical universe.

I'm curious.

You're a Catholic aren't you? Are do you square believing in a faith with a science based world view?

You clearly haven't met a Catholic. They can square anything with anything

You believe in soul mates touching you in dreams. You're not material philosophist dude

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By *inkyLondonpairCouple
over a year ago

London

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue?

The latter sentence is the one that I intuitively relate to. Most people seem to want to be a unique individal with nothing a stranger could know about them based on laws of the physical universe.

I'm curious.

You're a Catholic aren't you? Are do you square believing in a faith with a science based world view?

You're a material philosophist right? So, you believe that eventually, science will explain everything? Our course it doesn't right now, so you take it on faith that it will.

I believe in a probalistic universe, not a deterministic one. "

No, I don't believe at all that. "everything" will ultimately be explained whatever "everything" might mean.

It's curious that you so loudly trumpet your belief in science and logic when, if I am right about your faith, when you believe that the words of a priest can turn bread and wine into the literal body and blood of a deity.*

To someone who is not a Catholic that idea is far more ludicrous than any of people's ideas you denigrate on here.

* don't bother to lecture me about Aristotealian categories and substance and accidents. I know the arguments.

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By *y Favorite PornstarCouple
over a year ago

Basingstoke

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue?

The latter sentence is the one that I intuitively relate to. Most people seem to want to be a unique individal with nothing a stranger could know about them based on laws of the physical universe.

I'm curious.

You're a Catholic aren't you? Are do you square believing in a faith with a science based world view?

You're a material philosophist right? So, you believe that eventually, science will explain everything? Our course it doesn't right now, so you take it on faith that it will.

I believe in a probalistic universe, not a deterministic one.

No, I don't believe at all that. "everything" will ultimately be explained whatever "everything" might mean.

To someone who is not a Catholic that idea is far more ludicrous than any of people's ideas you denigrate on here.

* don't bother to lecture me about Aristotealian categories and substance and accidents. I know the arguments. "

I'd find that fairly easy to answer but i fear we're hijacking a thread here. I asked my question because i see that facts, experts and statistics (all core aspects of science) have almost become dirty words in 2018. I don't think that's because people have become more religious.

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By *inkyLondonpairCouple
over a year ago

London

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue?

The latter sentence is the one that I intuitively relate to. Most people seem to want to be a unique individal with nothing a stranger could know about them based on laws of the physical universe.

I'm curious.

You're a Catholic aren't you? Are do you square believing in a faith with a science based world view?

You're a material philosophist right? So, you believe that eventually, science will explain everything? Our course it doesn't right now, so you take it on faith that it will.

I believe in a probalistic universe, not a deterministic one.

No, I don't believe at all that. "everything" will ultimately be explained whatever "everything" might mean.

To someone who is not a Catholic that idea is far more ludicrous than any of people's ideas you denigrate on here.

* don't bother to lecture me about Aristotealian categories and substance and accidents. I know the arguments.

Do you not see that, the doctrines of Catholicisn and Christianity generally directly contradict what you said above? Christianity posits that each individual IS special and of unique importance to God. How can you possibly say you are a Christian whilst holding the view that individuals are of no importance in the grand scheme of things (a view I happen to agree with).

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By *hisky and WineCouple
over a year ago

the vicinity of Betelgeuse

"I’m going to break the thread before it starts

Aeroplane on a treadmill, treadmill matches the wheel speed.....can it take off

No.

Plane needs air passing over and under wings at speed to generate lift before it can take off."

Ok so I studied aerospace engineering at uni and this subject came up.

The crux of the question revolves around propulsion types. Where people get mixed up is assuming aircraft are propelled forward in the same way as cars, bike or even people.

Cars etc rely on a reaction with the ground, engine applies power to the gearbox which transfers to the wheels then to the ground.

Aircraft on the other hand rely on a reaction with the air to propel them selves forward. So regardless of what an aircrafts (unpowered) wheels are doing its engines will propel it forward and it’ll fly.

Hope that helps clear things up.

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By (user no longer on site)
over a year ago

"Ok so my question is: why do most people hate science and the facts it produces?

Why do people want to believe in things that are demonstrably untrue?

What... like believing that the earth orbits the sun when it's demonstrably true that the sun passes through the sky?

The problem is worse than that. The scientific method alone says very little about anything. The scientist runs a test and discerns that small amounts of red wine raise the oxygen levels in blood in some individuals between the age of 45-55 in the London area. He then surmises that in some instances this may lead to increased longevity. The science journalist gets hold of this and all of a sudden everyone's being told red wine helps you live longer. This is lauded as a fact which is undeniably true... and people like yourself will happily accept that and then press the point as such in any arguments over alcohol consumption you may be having.

Next another scientist runs a test and finds that copious amounts of red wine led to problems in the gut of 55% of elderly aborigine people living in the remote wilderness. The science journalist gets hold of that and suddenly red wine is bad for your health and this is pushed with the same exact certainty again as being true... and once again people like you pick that study up as facts to push in debates about alcohol.

In between... the common man... we can see the whole thing is a confusing work in progress... that yesterday's claims of fact turned out to be bullshit and most likely so will today's... so we'll just wait until science is finished before we bother taking any more of its advice. But of course, as you know, science will never be finished and not listening to current science, no matter how incomplete, is recklessly stupid. Indeed, this whole disillusionment with science isn't based on the science itself... only on the foolish over simplifications of what is claimed of it. If more people knew that they'd be less cynical of science and more cynical of science journalism.

It's a massive clusterfuck conjured up mainly not by scientists at all but by science's journalists and fans

(closed, thread got too big)

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