Satellite Earth Globe by Mova: astonishing kinetic art that rotates without a power cord or batteries featuring a counterweighted globe sealed within a clear liquid filled acrylic sphere. The rotation in a Mova globe is powered by light that shines through the semi-transparent Earth image on to solar cells within the globe which supplies electricity to a motor. But what does the motor push against to maintain the rotation? Believe it or not it rotates magnets to push against the Earth’s magnetic

1790 Terrestrial Globe by Mova: rotating counterweighted globe sealed within a clear liquid filled acrylic sphere. The rotation in a Mova globe is powered by light that shines through the semi-transparent map image on to solar cells within the globe which drive a motor. But what does the motor push against to maintain the rotation? Believe it or not it uses magnets to push against the Earth’s magnetic field like a compass needle. Wonderful physics of all kinds in the design of this clever device