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Does energy exist?

janesix
Posts: 6,499
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4/4/2015 1:57:34 AM
Posted: 2 years ago
Yes I know, silly question. But I have insomnia and I can't stop thinking about it.

Is energy a "thing"? Can it exist on it's own?

Is it just the "ability to do work" like some physics books say?

If you converted all the mass of a particle into energy somehow, what would be left?
Accipiter
Posts: 1,938
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4/4/2015 5:57:07 AM
Posted: 2 years ago
At 4/4/2015 1:57:34 AM, janesix wrote:
Yes I know, silly question. But I have insomnia and I can't stop thinking about it.

Is energy a "thing"? Can it exist on it's own?

Is it just the "ability to do work" like some physics books say?

If you converted all the mass of a particle into energy somehow, what would be left?

Everything is made of energy.

Remember E=mc2?

There is a tremendous amount of energy locked up inside every atom that you are made of.
Religion is regarded by the common people as true, by the wise as false and by rulers as useful. -Seneca
RuvDraba
Posts: 6,033
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4/4/2015 6:06:46 AM
Posted: 2 years ago
At 4/4/2015 1:57:34 AM, janesix wrote:
Is energy a "thing"? Can it exist on its own?

I don't think we can perceive energy until it changes matter in some way, Jane.

If you converted all the mass of a particle into energy somehow, what would be left?

The potential to change something else.

Information can be lost in transformation, Jane. Consider what happens to a book if we burn it. The words -- the arrangements of ink on a page -- become heat. The heat can warm you as the words themselves could not. But the thoughts -- transcribed from the mind of the author -- are gone.