Added over 4 years ago | 00:37:48 | 4302 views
06/10/2006 11:00 AM KresgeEsther Duflo, PhD '99, Abdul Latif Jameel Prof of Poverty Allev & Develop Department of EconomicsDescription: Esther Duflo hopes to take the measure of a wide range of anti-poverty programs. Applying scientifi...
Added almost 6 years ago | 00:34:38 | 12358 views
Alan P. Kuritsky, AT&T John D.C Little, MIT Alvin J. Silk, MIT Emily Bassman, MIT AT&T developed a new marketing strategy for its residential long distance market place. The five year program of market segmentation, ad copy testin...
Added over 6 years ago | 00:02:02 | 39469 views
A fluorescent tube swings at the end of a long plexiglass rod. It is made to rotate and then brought near the Van de Graaff generator. The tube lights up when there is a potential difference between its ends. This happens when it is poi...
Added over 7 years ago | 00:00:38 | 19954 views
ELECTROSTATICS - Electric Fields A conducting ping-pong ball is suspended by thread and placed on the outer surface of one of the plates of a parallel-plate capacitor. As the plates are charged with the Wimshurst machine, the ball fol...
Added almost 8 years ago | 00:01:35 | 59751 views
An cathode ray tube (CRT) television is connected to a video camera. When a strong magnet is brought close to the television screen, the image becomes warped and discolored.While many new televisions use flat screen technology, older C...
Added 8 years ago | 00:01:02 | 35591 views
One wire coil is connected to a radio, and another is connected to a speaker. The two coils are not connected to each other. The radio signal is transmitted through the induced magnetic field caused by the current in the wires. The s...
Added 8 years ago | 00:00:23 | 68344 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 8 years ago | 00:00:28 | 52414 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 8 years ago | 00:01:29 | 75719 views
A toroid with three different wire windings is connected to 220 VAC 3-phase voltage. The voltage phase of each of the three windings lags 120 degrees behind the next, creating a changing induced magnetic field. The changing field causes...
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