Description

Compact in size, this
device offers a big
lesson in magnets and levitation. This two-tone soinning vortex
demonstrates magnet levitation and frictional
force with just one twist of the wrist. Set its axle
rotating for over ten minutes and as it spins, the
black and white sections allow you to measure the
rotation speeds with a stroboscope. In addition,
the friction is so low that it can be tracked with a
stroboscope readout. Size: 14cm L x 9cm W x 6cm
H.