Speaker:
Bill Beaty
Dangerous High-Speed Magnetic Levitation Maglev
Date: 2010-06-26 Time: 09:00 - 17:00 9.9 (1 decade 4 years ago)
Where: Long Beach, CA, United States Venue: The Pointe, Cal State Long Beach
Description
This is an example of inductive levitation. Two copper cylinders rotating at high speeds induce currents, which induce magnetic fields, which can levitate a magnet. Reversing the spin direction changes the polarity of the field, and instead causes the magnet to be pulled downward, with a force exceeding gravity. This enchanting demonstration has received over a million views on YouTube.