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Offline mouldymark

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background radiation
« on: 05/02/2006 19:45:23 »

Why is it that we can see the microwave background energy released at the big bang? Surely this Electromagnetic radiation will have travelled faster that us and should be long gone by now.:)


 

Offline Ray hinton

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Re: background radiation
« Reply #1 on: 05/02/2006 21:21:34 »
HOW DO THEY KNOW THAT WHAT THEY ARE DETECTING IS ACTUALLY LEFT FROM THE BIG BANG,AND NOT GOD DOING A TV DINNER BEFORE MATCH OF THE DAY


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Offline porquat

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Re: background radiation
« Reply #2 on: 13/02/2006 03:12:18 »
If we had been some "place" else when the Big Bang cooked off, and if we weren't consumed by it, the cosmic microwave background radiation would indeed be beyond our limits of observation. But it's vital to remember that as far as our universe is concerned, the Big Bang happened everywhere at once; there was no central point. Thus, the universe today is almost uniformly filled with the CMBR. Since we're also in that universe, we can detect that remnant radiation. It's a mistake to think of the Big Bang happening some where.
 

Offline ukmicky

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Re: background radiation
« Reply #3 on: 13/02/2006 03:20:22 »
It did happen somewhere but it was a very big somewhere

Michael
 

The Naked Scientists Forum

Re: background radiation
« Reply #3 on: 13/02/2006 03:20:22 »

 

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