Added over 5 years ago | 01:33:03 | 16747 views
03/16/2011 5:30 PM Bartos theaterRichard Samuels, Ph D, '80, Ford International Professor of Political Science, Director, Center for International Studies; Kenneth Oye, Associate Professor of Political Science and Engineering Systems an...
Added over 5 years ago | 01:07:00 | 9235 views
04/27/2009 4:00 PM 46"3002Dr. Jeremy Nathans, '79, Johns Hopkins UniversityDescription: Sometime around 100 million years ago, when the continents of Africa and South America were still in touch, a female primate -- one of our ancestors ...
Added 7 years ago | 00:02:02 | 42092 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 almost 8 years ago | 00:02:36 | 93434 views
Subatomic particles such as cosmic ray muons, alpha particles, and high energy electrons are striking our bodies all the time. In the cloud chamber, these particles ionize air molecules, creating delicate cloud trails by condensing supe...
Added almost 8 years ago | 00:02:25 | 41781 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 | 00:00:36 | 54988 views
A solenoid enclosed in another solenoid is connected to a 12 volt battery. Also contained in the circuit is an iron contact switch connected to a spring arm, with a gap on one side of it. When the circuit is closed, the inner solenoid a...
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