i-How: Science - How does the Van de Graaff Generator work
Robert J. Van de Graaff was an American physicist who, in 1929, invented a device called the Van de Graff generator. You may have seen, or even used, a Van de Graaff generator in the classroom at school. It is an electrostatic generator which uses an acrylic roller and rubber belt to amass very high voltages which are accumulate in a hollow metal sphere.
Van de Graaff
How a Van de Graaff generator works
Van de Graaff Generator image courtesy of science-resources.co.uk
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