Added over 7 years ago | 00:01:11 | 42996 views
A solid copper pendulum is mounted between the poles of an electromagnet (solenoid). The pendulum is set into motion, and then the magnets are turned on. The magnets induce eddy currents in the copper which oppose the motion of the pe...
Added over 7 years ago | 00:01:26 | 51821 views
A solenoid is connected to AC power. First, a 10,000-turn coil is placed over the solenoid, but is not connected to the power source. However, the solenoid still induces current in coil, creating very high voltages because of the high...
Added over 7 years ago | 00:00:23 | 65798 views
A large solenoid is connected to DC power through a knife switch. When the switch is closed, the current builds up to approximately 30 amps. When the switch is opened, the solenoid attempts to keep the current flowing, creating a huge...
Added over 7 years ago | 00:00:28 | 50457 views
Two bar magnets of the same size are dropped through an aluminum tube and a glass tube. The magnet dropped in the glass tube falls at the normal rate of acceleration due to gravity, but the magnet falling through the metal tube is slow...
Added over 7 years ago | 00:00:56 | 53461 views
A bismuth-based superconducting disk sits on a copper base and is immersed in liquid nitrogen. Two small, very strong magnets are placed on top of the superconductor. The magnets levitate due to the expelled magnetic field from the supe...
- Architecture & Planning
- Diversity & Inclusion
- Finance & Economics
- Global Awareness & Action
- How To
- Humanities, Arts and Social Sciences
- International Affairs
- Just for Fun/Humor
- Life at MIT
- MIT Alum
- National Security
- Public Policy
- Videoblogging or Autobiographical