Added over 7 years ago | 00:07:08 | 25510 views
Professor Marc A. Baldo of MIT discusses research and education in his group, and the intellectual challenges facing engineering at the frontiers of soft semiconductor materials, excitonics, and energy innovation.
Added over 7 years ago | 00:06:00 | 29071 views
The Center for Excitonics is a collaboration between the Massachusetts Institute of Technology, Harvard University and Brookhaven National Laboratory. Our objective is to supersede traditional electronics with devices that use excitons ...
Added over 7 years ago | 00:02:09 | 37991 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 ...
Added over 8 years ago | 00:03:05 | 64522 views
A ripple tank is placed above a mirror and a projection screen. A horizontal bar, whose frequency can be varied, taps the surface of the water and produces plane waves. The waves are incident on a barrier containing an adjustable openi...
Added over 8 years ago | 00:01:41 | 51224 views
A ripple tank is placed above a mirror and a projection screen. Two synchronous point sources, whose frequency can be varied, tap the surface of the water and produce circular waves. The interference pattern of the waves including the li...
Added over 8 years ago | 00:04:27 | 51275 views
A wire frame is dipped in bubble solution and placed in front of a speaker. At certain frequencies, the soap film oscillates in symmetrical patterns called normal modes. A light is reflected off the soap film through a lens onto the wall...
Added over 8 years ago | 00:01:19 | 49912 views
Two pucks of the same mass are slid at each other on an air table, and their resulting collisions demonstrate conservation of momentum. Notice on the first collision, for example, that when a moving puck hits a stationary puck dead-on, ...
Added over 8 years ago | 00:01:30 | 57085 views
Odd-shaped objects with their centers of mass marked by orange paint are thrown. While the objects appear to follow very wobbly trajectories when viewed under bright lights, under black lights you can see that their centers of mass trave...
Added over 8 years ago | 00:02:25 | 43483 views
A laser is directed at an adjustable single slit and then a pinhole and the resulting diffraction patterns can be seen on a screen. A laser directed at two slits spaced closely next to each other creates an interference pattern within...
Added almost 9 years ago | 00:01:10 | 49089 views
A light bulb is connected in series with a coil of very fine copper wire and a DC power supply. The voltage is adjusted so that the bulb glows dimly. When the coil is immersed in liquid nitrogen the resistance of the wire decreases causi...
Added 9 years ago | 00:01:42 | 39780 views
Two carts are connected together on an air track with a spring. Under bright lights you can see the coupled oscillation of the carts back and forth, but under black lights you can see that the center of mass moves at a constant velocity.
Added 9 years ago | 00:00:41 | 50502 views
A ball is dropped in front of a meter stick and lit by a strobe light. A long exposure photograph captures the position of the ball at each evenly spaced flash of light. The acceleration of the ball can then be measured from the photo. ...
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