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Offline blue_cristal

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Matter and Energy
« on: 16/05/2008 18:06:44 »
Is matter just condensed energy ?


 

Offline science_guy

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« Reply #1 on: 16/05/2008 19:02:41 »
since matter and energy are basically the same thing, and when you convert matter to energy, you release a vast amount for just little bit, I would say that is the logical conclusion.

so yes :D
 

Offline blue_cristal

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« Reply #2 on: 16/05/2008 19:59:28 »
A proton has a estimated half-life of 1032 years !

Isn't amazing that the energy packed to form a proton could be so stable and for so long ?
 

lyner

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« Reply #3 on: 16/05/2008 21:08:13 »
That is a source of great comfort to me.
 

Offline lightarrow

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« Reply #4 on: 17/05/2008 08:01:07 »
Is matter just condensed energy ?
It could be. The problem is how to condense it without other matter but with only energy; if we find a way then you would be absolutely right.
 

lyner

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« Reply #5 on: 17/05/2008 10:25:00 »
You just knot up the strings and you get a little ball of the stuff.
 

Offline lightarrow

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« Reply #6 on: 17/05/2008 13:10:58 »
You just knot up the strings and you get a little ball of the stuff.
Ah yes. But they don't exist, yet  :)
 

Offline LeeE

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« Reply #7 on: 17/05/2008 21:12:21 »
Two photons can collide and create particles.  The most well known is probably gamma+gamma -> electron+positron pair.
 

Offline lightarrow

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« Reply #8 on: 18/05/2008 15:40:05 »
Two photons can collide and create particles.  The most well known is probably gamma+gamma -> electron+positron pair.

Certainly. However the question was slightly different: not if energy can create matter but if matter itself is energy condensed.
 

Offline Soul Surfer

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« Reply #9 on: 19/05/2008 00:22:19 »
Matter is essentially a form of localised energy and matter can be converted into energy ans energy into matter though interactions of various subatomic particles however when energy is converted into matter it is always in the form of particle antiparticle pairs which can easily convert back into energy when they meet.
 

Offline LeeE

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« Reply #10 on: 19/05/2008 10:23:56 »
Two photons can collide and create particles.  The most well known is probably gamma+gamma -> electron+positron pair.

Certainly. However the question was slightly different: not if energy can create matter but if matter itself is energy condensed.

I was responding to your statement that "The problem is how to condense it without other matter but with only energy"  Perhaps I should have made that clearer:)

Otherwise, I'm with science_guy in post No. 2 on this one:)
 

Offline DoctorBeaver

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« Reply #11 on: 19/05/2008 20:44:27 »
A proton has a estimated half-life of 1032 years !


That is only in some GUT theories.

Protons are the lightest baryonic particles and so will not perturbatively (?) decay into other particles. Also, proton decay would go against the conservation of baryon number.

Some GUT theories go beyond the Standard Model and these break baryon number symmetry. This would allow the proton to decay via X-bosons and supermassive Higgs bosons. There have been experiments to look for this decay but so far no evidence of it has been found.

Recent experiments suggest that if protons do indeed decay, their half-life must be at least 1035 years.
 

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« Reply #11 on: 19/05/2008 20:44:27 »

 

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