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MIT Physics Demo -- Adjustable Capacitor with Dielectric
MIT Physics Demo -- Adjustable Capacitor with Dielectric
drops. However, when the plexi is removed, the voltage rises back up again, showing that the charge is still there. This is one of the main reasons capacitors are built with dielectrics between their [...]
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MIT Physics Demo -- Faraday's Cage
MIT Physics Demo -- Faraday's Cage
However, when a metal cage surrounds him, he is completely shielded against any electricity or electrostatic force. This is due to the fact that all charges in a conductor reside on the outer surface, and always [...]
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Staying healthy during holiday travel
Staying healthy during holiday travel
Dr. Howard M. Heller, MD, MPH, Chief of Medicine at MIT Medical, talks about how to stay safe while traveling, especially on airplanes. He speaks about common "myths" about airplane travel, and demonstrates safe and unsafe ways [...]
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H1N1: Facts and advice from Dr. Howard Heller, MIT
H1N1: Facts and advice from Dr. Howard Heller, MIT
Dr. Howard M. Heller, MD, MPH, Chief of Medicine at MIT Medical, talks about the H1N1 flu, the importance of getting a flu shot, other precautions to take, and what MIT students and [...]
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MIT TechTV - Tiny Bubbles
MIT TechTV - Tiny Bubbles
MIT chemists Daniel Nocera and Matthew Kanan have discovered a way to to convert sunlight into chemical fuel by using Cobalt to split water into oxygen and hydrogen. According to Dr. Nocera, water combined with light will [...]
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MIT Physics Demo -- Monkey and a Gun
MIT Physics Demo -- Monkey and a Gun
the ball will go over the monkey's head due to its fast speed. However, gravity accelerates all objects downward at the same rate, meaning the monkey and the ball will meet at exactly the [...]
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MIT Physics Demo -- Bicycle Wheel Gyroscope
MIT Physics Demo -- Bicycle Wheel Gyroscope
and the free end of the axle processes about the supported end. The gyroscope seems to defy gravity because the torque created by the spinning wheel counteracts the torque due to gravity. Gyroscopes have been [...]
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MIT Physics Demo -- Exploding Wire
MIT Physics Demo -- Exploding Wire
flows though high resistance wire, the bonds between iron molecules are shattered, resulting in a loud bang, a shower of sparks, and a cascade of wispy filaments floating through the air. Not all of the charge [...]
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MIT Physics Demo -- Galvanometer Principle
MIT Physics Demo -- Galvanometer Principle
") are connected to 125V DC power, and produce a uniform magnetic field between the coils. A separate coil is suspended with this field. Switching the polarity of the DC current in the inner coil causes [...]
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MIT Physics Demo -- Inductor Radio
MIT Physics Demo -- Inductor Radio
. 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 signal is only received when there is a [...]
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