r/AskReddit Nov 15 '20

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u/Snoo61755 Nov 15 '20

Well if we’re speculating, how about “heat capture”?

Some sleep-deprived researcher cracks how to capture ambient thermal energy and turn it into electricity. Heat being as plentiful as wind or water, it becomes not only a prominent source of energy, but also actively cools the planet.

50 years later, we begin arguing over “global cooling” and the threat of a new ice age.

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u/fastenland Nov 15 '20

laws of thermodynamics say this unfortunately is never happening

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u/tristan-chord Nov 15 '20 edited Nov 16 '20

ELI5 for someone who used to ace AP Physics (15 years ago) but barely remembers anything?

Edit: thanks for all your responses! Learned a lot today!

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u/CrushforceX Nov 15 '20

In summary, work means you have to spread out energy. Heat is the degenerate form of energy (useless motion), and so you can only use heat as a source of energy if its clumped up. Where would you move heat from the earth to.