perpetual motion machine
perpetual motion
perpetual motion machine of the first kind
Brownian ratchet
engine
constraint
restraint
perpetuum mobile
electromotor
perpetual motion machine of the second kind
microswimmer
Dean drive
reactionless drive
Atwood machine
bogon filter
motor
idler
manipulator
ride
shock absorber
electromechanical device
black box
hunk of junk
elliptical trainer
cloner
hot spare
appliance
nonprogrammable
mechanical device
clog
propeller
escapement
simple machine
propellor
time machine
anchor
ground tackle
toy car
button
machine
propulsiveness
beamer
hard stop
calculator
kinesis
chronovisor
electronic device
piezotranslator
steering wheel spinner knob
transducer
inertial frame of reference
suppressor
microwave resonant cavity thruster
microswitch
non-runner
pedrail
free spin
vibrator
stepper
bearing
telekinesis
heliodon
unavailable energy
lockout
flycraft
P.E.
anelectric
psychokinesis
diode
stepping motor
potential energy