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Is motion possible

To go anywhere, you must go halfway first, and then you must go half of the remaining distance, and half of the remaining distance, and so forth to infinity: Thus, motion is impossible.

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Ansh Thaker

Lvl 7
4y ago
Updated: 9/17/2021

Not according to the second law of thermodynamics.

It is possible to create near perpetual motion by cooling some liquids to near absolute zero where they lose viscosity and can be made to continue to circulate through some apparatus. It isn't technically perpetual motion though, because one still needs to spend energy to keep the liquids at such a low temperature.

Near perpetual motion can also be observed by the Earth, which orbits the Sun, and has been doing so for billions of years and will continue to do so for billions more. It isn't quite perpetual either because, in addition to the several different processes from which the Earth loses energy internally, the interstellar medium creates a tiny amount of friction which is in turn converted into heat, and so the Earth's orbit would eventually decay if the Sun didn't engulf it first in a few billion years when it turns into a red giant.

In the end though, there is no such thing as perpetual motion.

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