No one, it has not been achieved yet, infact achieving perpetual motion is a physical impossibility. Else we'd live in a golden age without the need of fossil fuels or nuclear power.
No one. Perpetual motion has not been invented yet.
Perpetual motion machines are theoretical only. No one has actually invented one. A perpetual motion machine would have to be able to provide its own source of energy to continue operating.
No one, and no one ever will, since perpetual motion machines are a scientific impossibility.
Because perpetual motion can not happen
Perpetual Motion Roadshow was created in 2003.
That question would really be tough to answer, because perpetual motion is not possible.
Perpetual Motion - album - was created on 2001-10-02.
Frenetic motion and perpetual motion.
Perpetual Motion - short story - was created in 1950-09.
Perpetual motion.
Perpetual Motion Machine - song - was created on 2009-07-17.
The cast of Perpetual Motion - 2003 includes: Gregory Madore