FabSwingers.com forum: Big Bang theory

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

Any cosmologists or physicists who can explain something to me please?

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By *yrdwomanWoman
over a year ago

Putting the 'cum' in Eboracum

On here? Seriously?

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

lol, just ask anyway. im sure all the stay at home physisists can help

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

I don't wanna now. I feel silly

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

"On here? Seriously?"

I'm an optimist

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By *yrdwomanWoman
over a year ago

Putting the 'cum' in Eboracum

Go on, you never know. I have an interest.

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

I just wanted to know what was meant by recession velocity. I thought it was how they worked out when the big bang happened, but I'm not sure

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By *uppy ConquerorMan
over a year ago

dundee

i watch a lot of physic lectures on youtube when trying to get to sleep, not sure if i take any of it in though.

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By *isscheekychopsWoman
over a year ago

The land of grey peas and bacon

Recessional velocity is the rate at which an object is moving away, typically from Earth.

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By *yrdwomanWoman
over a year ago

Putting the 'cum' in Eboracum

Its the speed at which bodies are moving away from us. As we are not the centre of the Universe (although we think we are) then its not a good way of measuring the age of the universe, especially as they speed up the further they get away from us.

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By *isscheekychopsWoman
over a year ago

The land of grey peas and bacon

Recessional velocity is most pertinent to distant galaxies, which (due to Hubble's Law) redshift proportionally to their distance from the Earth. The redshift is usually interpreted as due to recessional velocity, which can be calculated according to the formula:

where is the Hubble constant, is the intervening distance, and is the recessional velocity, generally measured in km/s.

The recessional velocity of a galaxy is usually calculated from the redshift observed in its emitted electromagnetic radiation. The distance to the galaxy is then estimated using Hubble's Law.

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

Thank you very much ladies

I mistakenly used recession as in receding i.e. Working backwards

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

"Its the speed at which bodies are moving away from us. As we are not the centre of the Universe (although we think we are) then its not a good way of measuring the age of the universe, especially as they speed up the further they get away from us."

when you say we, do you mean we, the human race, or we, single women on here? lol

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

No idea. And though when I listen to scientific explanations of the Big Bang Theory I can almost follow them, i do always think, "Erm, so something came out of nothing, but there was actually something there to begin with, so, erm, where did the something come from then? Eh? Tell me that?"

I guess it is that leap. Science can only provide theories to be disproved or refined, based on observable phenomena.

I think an elephant with a tortoise on its back sharted into the cosmos.

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

am i the only one a little turned on by the brainy ladies/ladies that can google within this thread??

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

"am i the only one a little turned on by the brainy ladies/ladies that can google within this thread??

I didn't want to Google, I wanted it in laymen's terms

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

"No idea. And though when I listen to scientific explanations of the Big Bang Theory I can almost follow them, i do always think, "Erm, so something came out of nothing, but there was actually something there to begin with, so, erm, where did the something come from then? Eh? Tell me that?"

I guess it is that leap. Science can only provide theories to be disproved or refined, based on observable phenomena.

I think an elephant with a tortoise on its back sharted into the cosmos."

oi oi! A discworld fan!!

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

I guess it is that leap. Science can only provide theories to be disproved or refined, based on observable phenomena.

I think an elephant with a tortoise on its back sharted into the cosmos."

i listen to a science phone in on radio 5 on a thursday morning (try and catch it, very informative)

and the scientist they have on says 'science cannot prove things. science can only DISPROVE things. ie, if you were to say, all swans are white, science cannot prove it, however, it can disprove it by finding a swan of a different colour'

make s ya think lol

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By *0hnnyBrav0Man
over a year ago

Great Wyrley

Its cryptic questionology from the higher intelligence for ' does anyone have any cake?'

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

I guess it is that leap. Science can only provide theories to be disproved or refined, based on observable phenomena.

I think an elephant with a tortoise on its back sharted into the cosmos."

what if Hubble is totally wrong??

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

I guess it is that leap. Science can only provide theories to be disproved or refined, based on observable phenomena.

I think an elephant with a tortoise on its back sharted into the cosmos.

what if Hubble is totally wrong?? "

until someone comes up with a theory that disproves him, he will never be wrong

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

"Its cryptic questionology from the higher intelligence for ' does anyone have any cake?'"

Not any more. I did. But it was billions of years ago. And that bloody Tortoise stole it, was sick, and vomited up our galaxy. And a swan.

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

"Its cryptic questionology from the higher intelligence for ' does anyone have any cake?'"
oi cake man! Get off my serious thread. And clear up your crumbs

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By *uppy ConquerorMan
over a year ago

dundee

I guess it is that leap. Science can only provide theories to be disproved or refined, based on observable phenomena.

I think an elephant with a tortoise on its back sharted into the cosmos.

what if Hubble is totally wrong?? "
think its a proven fact that things moving away from us emit a red glow, the redder it glows the faster its moving

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

I guess it is that leap. Science can only provide theories to be disproved or refined, based on observable phenomena.

I think an elephant with a tortoise on its back sharted into the cosmos.

what if Hubble is totally wrong?? think its a proven fact that things moving away from us emit a red glow, the redder it glows the faster its moving"

I've just been reading about that

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By *0hnnyBrav0Man
over a year ago

Great Wyrley

"Its cryptic questionology from the higher intelligence for ' does anyone have any cake?'oi cake man! Get off my serious thread. And clear up your crumbs

apologies

I should be punished...........

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By *ittle_brat_evie!!Woman
over a year ago

evesham

Our whole universe was in a hot dense state,

Then nearly fourteen billion years ago expansion started. Wait...

The Earth began to cool,

The autotrophs began to drool,

Neanderthals developed tools,

We built a wall (we built the pyramids),

Math, science, history, unraveling the mysteries,

That all started with the big bang!

"Since the dawn of man" is really not that long,

As every galaxy was formed in less time than it takes to sing this song.

A fraction of a second and the elements were made.

The bipeds stood up straight,

The dinosaurs all met their fate,

They tried to leap but they were late

And they all died (they froze their asses off)

The oceans and Pangea

See ya wouldn't wanna be ya

Set in motion by the same big bang!

It all started with the big BANG!

It's expanding ever outward but one day

It will pause and start to go the other way.

Collapsing ever inward, we won't be here, it won't be heard

Our best and brightest figure that it'll make an even bigger bang!

Australopithecus would really have been sick of us

Debating how we're here, they're catching deer (we're catching viruses)

Religion or astronomy (Descartes or Deuteronomy)

It all started with the big bang!

Music and mythology, Einstein and astrology

It all started with the big bang!

It all started with the big BANG

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

"Its cryptic questionology from the higher intelligence for ' does anyone have any cake?'oi cake man! Get off my serious thread. And clear up your crumbs

apologies

I should be punished...........

No cake for you

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

"Our whole universe was in a hot dense state,

Then nearly fourteen billion years ago expansion started. Wait...

The Earth began to cool,

The autotrophs began to drool,

Neanderthals developed tools,

We built a wall (we built the pyramids),

Math, science, history, unraveling the mysteries,

That all started with the big bang!

"Since the dawn of man" is really not that long,

As every galaxy was formed in less time than it takes to sing this song.

A fraction of a second and the elements were made.

The bipeds stood up straight,

The dinosaurs all met their fate,

They tried to leap but they were late

And they all died (they froze their asses off)

The oceans and Pangea

See ya wouldn't wanna be ya

Set in motion by the same big bang!

It all started with the big BANG!

It's expanding ever outward but one day

It will pause and start to go the other way.

Collapsing ever inward, we won't be here, it won't be heard

Our best and brightest figure that it'll make an even bigger bang!

Australopithecus would really have been sick of us

Debating how we're here, they're catching deer (we're catching viruses)

Religion or astronomy (Descartes or Deuteronomy)

It all started with the big bang!

Music and mythology, Einstein and astrology

It all started with the big bang!

It all started with the big BANG

I wondered what all the words were. Now I know

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By *uke olovingmanMan
over a year ago

Gravesend

the wavelength of light recieved from objects moving away from us at greater speeds gets stretched out and therefore appears to be more red .. hence the red shift a bit like when a fire engine going past us .. the pitch of the sound of the nee naws gets lower .. you may notice this effect if your not too busy trying to perv at the firemen.. anyway .. the speed the stars are moving away from us can be calculated ie the recessional velocity .by the shift to the red of their light

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By *uppy ConquerorMan
over a year ago

dundee

I guess it is that leap. Science can only provide theories to be disproved or refined, based on observable phenomena.

I think an elephant with a tortoise on its back sharted into the cosmos.

what if Hubble is totally wrong?? think its a proven fact that things moving away from us emit a red glow, the redder it glows the faster its moving

I've just been reading about that "
Some good lectures on youtube, look up Stanford university.

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

I guess it is that leap. Science can only provide theories to be disproved or refined, based on observable phenomena.

I think an elephant with a tortoise on its back sharted into the cosmos.

what if Hubble is totally wrong?? think its a proven fact that things moving away from us emit a red glow, the redder it glows the faster its moving

I've just been reading about that Some good lectures on youtube, look up Stanford university."

thank you

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By *inaTitzTV/TS
over a year ago

Titz Towers, North Notts

A Brief History of Time is overrated as a read.

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

"the wavelength of light recieved from objects moving away from us at greater speeds gets stretched out and therefore appears to be more red .. hence the red shift a bit like when a fire engine going past us .. the pitch of the sound of the nee naws gets lower .. you may notice this effect if your not too busy trying to perv at the firemen.. anyway .. the speed the stars are moving away from us can be calculated ie the recessional velocity .by the shift to the red of their light "

I got that when I read it

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By *uke olovingmanMan
over a year ago

Gravesend

it also explains why your voice is higher pitched when your screaming im coming im coming .then it gets lower afterwards .. or maybe thats different

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By *eMontresMan
over a year ago

Halesowen

It's called the phase doppler effect, it's been known for ages - same principle as speed cameras work. They emit electromagnetic radiation and the difference in the phase shift of the reflected waves from the emitted waves is used to calculate the speed.

The velocity of the receding body can be easily calculated from the red shift.

Hubble's law is then used to estimate the distance from this velocity.

Although we might think of bodies/solar systems/galaxies moving away from us, that concept is somewhat meaningless as we are not stationary or epicentral. The whole universe is expanding (see Monty Python song for an excellent overview)and objects are moving away from each other - into what, is one of the great imponderables.

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By *rightonsteveMan
over a year ago

Brighton - even Hove!

The further away something is from the centre of the universe, the faster it travels. Also, the centre of the universe is everywhere - all points because it depends on the viewpoint.

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By *rightonsteveMan
over a year ago

Brighton - even Hove!

"it also explains why your voice is higher pitched when your screaming im coming im coming .then it gets lower afterwards .. or maybe thats different "

That's more slopplar effect than dopplar effect....

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By *rightonsteveMan
over a year ago

Brighton - even Hove!

Just remember that you're standing on a planet that's evolving

And revolving at nine hundred miles an hour,

That's orbiting at nineteen miles a second, so it's reckoned,

A sun that is the source of all our power.

The sun and you and me and all the stars that we can see

Are moving at a million miles a day

In an outer spiral arm, at forty thousand miles an hour,

Of the galaxy we call the 'Milky Way'.

Our galaxy itself contains a hundred billion stars.

It's a hundred thousand light years side to side.

It bulges in the middle, sixteen thousand light years thick,

But out by us, it's just three thousand light years wide.

We're thirty thousand light years from galactic central point.

We go 'round every two hundred million years,

And our galaxy is only one of millions of billions

In this amazing and expanding universe.

The universe itself keeps on expanding and expanding

In all of the directions it can whizz

As fast as it can go, at the speed of light, you know,

Twelve million miles a minute, and that's the fastest speed there is.

So remember, when you're feeling very small and insecure,

How amazingly unlikely is your birth,

And pray that there's intelligent life somewhere up in space,

'Cause there's bugger all down here

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

Ok, so enough Big Bang theory what about gang bang theory (or practice)

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By *rightonsteveMan
over a year ago

Brighton - even Hove!

"Ok, so enough Big Bang theory what about gang bang theory (or practice)"

The further away the wannabes the faster they run when it's the day of the gangbang orgy porgy group sex session

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

"Ok, so enough Big Bang theory what about gang bang theory (or practice)"

everyone would have to be certified clean and smelling minty fresh. Then I'll join in happily

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

"It's called the phase doppler effect, it's been known for ages - same principle as speed cameras work. They emit electromagnetic radiation and the difference in the phase shift of the reflected waves from the emitted waves is used to calculate the speed.

The velocity of the receding body can be easily calculated from the red shift.

Hubble's law is then used to estimate the distance from this velocity.

and the further away they are the faster they move ?

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

"its a proven fact that things moving away from us emit a red glow, the redder it glows the faster its moving"

That's tail lights mate. Every galaxy has them.

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

You should see the recessional velocity i encounter whenever i turn up for a meet.

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

I guess it is that leap. Science can only provide theories to be disproved or refined, based on observable phenomena.

I think an elephant with a tortoise on its back sharted into the cosmos."

The latest development I recall to deal with the something from nothing idea and the explanation for how ridiculously fine tuned the constants of our universe are (so much so that even if one vale was a teeny bit different, the universe couldn't exist), is the multi-verse theory.

There are lots of parallel universes...all with different variations of constants...this one got the balance 'bang' on...and the rest is...history...and biology and physics and chemistry etc...

I think Dawkins has conceded that where the universe came from may not be answerable - he naturally won't consider intelligent design - it is a pretty tough question though!!

Some fascinating discussions between him and prof Lennox on YouTube.. As well as William lane Craig and Christopher Hutchins on some of this stuff.

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

[Removed by poster at 25/04/14 21:52:52]

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By *ctaviusStuntMan
over a year ago

plymouth

redundant theory they dont think the big bang actually happened now

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By *eMontresMan
over a year ago

Halesowen

[Removed by poster at 25/04/14 21:59:06]

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

"redundant theory they dont think the big bang actually happened now

who don't?

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By *eMontresMan
over a year ago

Halesowen

The velocity of the receding body can be easily calculated from the red shift.

Hubble's law is then used to estimate the distance from this velocity.

and the further away they are the faster they move ? "

Yes, as they are accelerating, so the furthest ones have reached the greatest velocity. It was thought that there would be enough mass in the universe for the expansion to be reversed at some point, by the mutual gravitational attraction of the mass, but the latest I read on this, now seems to suggest that the expansion is actually speeding up and that there is insufficient mass to stop it. Fascinating stuff

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By *odareyouMan
over a year ago

not far from iceland,,,,,, tescos is nearer though :-) (near leeds)

I guess it is that leap. Science can only provide theories to be disproved or refined, based on /observable phenomena.

I think an elephant with a tortoise on its back sharted into the cosmos.

what if Hubble is totally wrong?? "

Hubbles, wife says he s always wrong,,,

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

what would u like to know..I'm a wee geek x

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

Even the moon is reckoned to be moving away from us. At some half a foot a year so i believe.

So cunning plan for when i retire, i'm gonna move further up the hillside.

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

"what would u like to know..I'm a wee geek x"

it's a physics question,nothing about wee

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

"what would u like to know..I'm a wee geek x

it's a physics question,nothing about wee

now if I had been talking about wee, as in urine, we may have actually created a new parallel timeline.

if U really wanna get bogged down in Heisenberg's uncertainty principle, or the anthropic principle...

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

"redundant theory they dont think the big bang actually happened now

who don't? "

Scientists... People like Professor Penrose....the multiverse is more en vogue now... There are other ideas too...

Some mathematicians have a problem with something that's infinitely dense but has zero volume...or something...

It all makes my head hurt.

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By *reelove1969Couple
over a year ago

bristol

yeh ...i was just about to say that !!

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

You got to admit it tho

Penny is pretty hot

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

BBC Horizon: What Happened Before the Big Bang?

http://m.youtube.com/playlist?list=PL71E2AB6469E5743F

Really interesting if you like this kinda stuff...

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