Quote:
Originally Posted by embee
...Remember that changing any one sort of energy into any other sort of energy involves loss which cannot be recovered totally...
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really? what about electron energy levels? nuclear decay? a stationary particle in no gravitational or electromagnetic field has potential energy equal to it's mass x c squared, it can decay into two photons with equal kinetic energies of exactly half the potential energy of the particle, so long as they travel at exactly opposite velocities to conserve momentum. surely that's complete potential --> kinetic energy conversion right there
not particularly relevant i'll admit, but an example. what about a brick, i drop it, the potential energy is converted into kinetic energy in the form of the brick moving, the brick heating up slightly and also the noise of the brick falling...
energy cannot be created or destroyed, but you can completely convert one type to another without "losing" some shirley?
not being funny, genuinely curious as to what you mean
