Added over 7 years ago | 00:02:02 | 42732 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 | 00:02:09 | 37259 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 | 00:07:09 | 53825 views
Sustainability, a concept that is gaining new urgency worldwide, is getting a hands-on workout at MIT through projects that use the campus as a test lab and through a host of faculty and student initiatives.
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