Answer by John Rennie for Storing kinetic energy instead of potential energy...
Yes, we can store energy as the kinetic energy of a flywheel. The problem is that we can never completely eliminate friction, so our energy leaks away over time.But then we don't store energy as charge...
View ArticleStoring kinetic energy instead of potential energy - practically possible?
One of the big problems today considering energy is its storage (e.g. batteries are not that efficient, very expensive and polluting). Energy is classically mostly stored as some kind of potential (in...
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