4 ms·
>If you spin up a wheel in the vacuum of space, it's going to keep spinning forever. Even interstellar space is not 100% vaccuum. So it will slow from the occa
by hermitcrab 1y ago
>If you spin up a wheel in the vacuum of space, it's going to keep spinning forever.
Even interstellar space is not 100% vaccuum. So it will slow from the occasional contact with matter. No doubt it would take a very long time, though.
- glenstein 1y agoRight. And also efficiency is about its interaction as part of a system, which is the difference between perpetual motion, and perpetual motion machine.