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Energy cannot be created nor destroyed

Where did it come from in the first place then?

I don't know - I wasn't there, the universe is in a state of constant flux, at present it is still expanding and therefore we can only be reasonably sure that this is the result of a "Big Bang" (quiet at the back please - no sniggering).

If this is correct, it seems reasonable to think that once the universe ceases to expand, it will begin to shrink again - gravitational pull is inexorable - when it gets as small as it possibly can be (le "Grande Crunch") it then seems reasonable to suggest that there will be another "Big Bang". etc. etc. etc.
 
Yes but where did the 'bangable' matter come from? If it came from something - call it God. If it came from nothing then what acted upon the nothing to make it something? Dunno. Why don't we call it God?
 
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Is there any way of telling which electrons belong in which atomic energy levels, or is it just a probability?
 
matter is energy - energy is matter.

matter can only be turned or changed into another state but cannot be destroyed.

All things are made from a combination of matter and energy, they are not one and the same but they are essentially mutually inclusive - you can't have one without t'other.

If we could release and harness ALL of the energy contained in a King Edward potato, we could probably heat every house in an average city for a year. :eek:

Chips are good in the meantime though. :LOL:
 
matter or mass is energy.

E= mc2

or energy is equal to mass x the speed of light squared.

they are the same thing existing in differing forms.








probably. ;)
 
They are not quite the same.
You can create energy from matter, but you can not create matter from energy, except at a sub atomic level..............:cool:
 
Matter is anything that takes up space and/or has mass.

Energy is Matter that is able to do work.

Some matter has no mass and as a result is currently deemed unable to do work, and therefore has a convertible energy rating of zero.

Maybe CERN will turn everything upside down when the LHC experiments come to fruition? If they are able to identify and observe the Higgs boson, physics will never be the same again.

Probably. ;)
 
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