If a satellite is brought into a stable orbit around another body, it should keep orbiting, right?
In: Physics
It’s not perpetual. A “stable” orbit will still lose some energy and the satellite will eventually be flung off into space or come crashing down. For example, the moon seems stable and over human terms it is, but it’s still getting further away by about an inch a year.
A perpetual motion machine means that it’s creating usable energy from nothing. This violates basic physics. The energy has to come from *somewhere*.
Latest Answers