Added 6 years ago | 00:00:47 | 40329 views
A magnet with a very strong magnetic field is held in place on an aluminum disk. The disk is attached to a motor powered by variable AC current. When the disk rotates, the magnet will levitate above it due to eddy currents generated in ...
Added 6 years ago | 00:00:53 | 45745 views
A light bulb is placed in series with two copper plates immersed in de-ionized water. Touching the plates closes the circuit, lighting the bulb.When kosher salt is dropped into the de-ionized water, the salt dissolves, causing ions to b...
Added 6 years ago | 00:01:11 | 51021 views
A small glass tube, held by copper wire, is placed in series with a light bulb. The glass acts as an insulator at room temperature, meaning the current cannot flow between the copper wires. This leaves an open circuit and the light bulb...
Added 6 years ago | 00:01:30 | 34475 views
MIT Physics demonstration bernoulli's principle: A ping pong ball can be balanced on an air stream from a blowerhttp://en.wikipedia.org/wiki/Bernoulli%27s_Principlehttp://ocw.mit.edu/OcwWeb/Physics/8-01Physics-IFall1999/VideoLectures/de...
Added 6 years ago | 00:00:00 | 21735 views
MIT Physics lecture demonstration:DYNAMICS - Conservation of Angular MomentumThe demonstrator sits on a rotating stool and holds a spinning bicycle wheel equipped with handles on each end of its axle. The wheel is held in a vertical pla...
Added 6 years ago | 00:00:57 | 39301 views
An RF transmitter is connected to a long antenna, emitting radio waves. A dipole antenna with a light bulb between its elements acts as the receiver. When the receiving antenna is parallel to the transmitter, the radio waves are absor...
Added over 6 years ago | 00:01:14 | 34409 views
A polarized microwave emitter and a polarized microwave receiver face each other on a table. At first, the emitter and receiver are polarized in the same direction (up-down), and all the emitted signal gets received. When a metal comb i...
Added over 6 years ago | 00:02:11 | 26746 views
A double-horn microwave emitter faces a microwave receiver. The receiver is also connected to a speaker, which displays the received signal as audio, and an oscilloscope, which displays the signal visually. When the receiver is moved ...
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