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Does energy exist?

janesix
Posts: 3,467
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4/4/2015 1:57:34 AM
Posted: 1 year 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: 1,165
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4/4/2015 5:57:07 AM
Posted: 1 year 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.
RuvDraba
Posts: 6,033
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4/4/2015 6:06:46 AM
Posted: 1 year 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.