Massachusetts Institute of Technology
Sign in

Videos tagged with lightning (3)

Breakdown of Air

MIT Department of Physics Technical Services Group

Added over 6 years ago | 00:02:09 | 35694 views

Grounding rod tips of different sizes are used to discharge a large Van de Graaff generator. The larger the curvature of the tip, the more charge must build up to break down the air, resulting in longer sparks. The electricity ionizes ...

Faraday's Cage

MIT Department of Physics Technical Services Group

Added over 7 years ago | 00:01:23 | 67699 views

In the electric field of a Van de Graaff generator, an unprotected Ben Franklin feels electrostatic forces. However, when a metal cage surrounds him, he is completely shielded against any electricity or electrostatic force. This is due...

Dissectible Capacitor

MIT Department of Physics Technical Services Group

Added over 7 years ago | 00:02:54 | 49852 views

Leyden Jars, an early style of capacitor, can be connected to the two electrodes of the Wimshurst Machine. They will store charge as it is generated, giving a much stronger spark across the gap. Next we have a three-piece dissectible ...