Added over 6 years ago | 00:00:47 | 40581 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 over 6 years ago | 00:00:53 | 46018 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 over 6 years ago | 00:01:11 | 51261 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 over 6 years ago | 00:01:30 | 34602 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 over 6 years ago | 00:00:19 | 17304 views
MIT Physics lecture demonstration:DYNAMICS - Moment of InertiaA person holding dumbbells in his/her arms spins in a rotating stool. When he/she pulls the dumbbells inward, the moment of inertia changes and he/she spins faster.
Added over 6 years ago | 00:00:00 | 21895 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 over 6 years ago | 00:00:57 | 39567 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 | 34586 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 | 26930 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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