Van de Graaff generator


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Van de Graaff generator

[van′ də gräf′]
Etymology: Robert J. Van de Graaff, American physicist, 1901-1967
a device in which electrically charged particles are sprayed on a moving belt and carried by it to an insulated terminal, where they cause a large electrostatic charge to build up. The charged particles are then accelerated along a discharge path through a vacuum tube by the potential difference between the insulated terminal and the opposite end of the device. The generator often is used to inject charged particles into a larger accelerator.
References in periodicals archive ?
The girl has her hands on a Van de Graaff generator, a machine that gives off electrons (negatively charged particles).
In addition to student inventor presentations and enterprises, the event will offer hands-on, educational activity tables and workshops including physics demos from the UT Physics Club, Robots and LEDs from CozmicFunk Studio, rocket demos, a Van de Graaff generator from Austin Energy, unique electronics instruments from Delptronics, and other science, technology and sustainable energy displays.
Children 5 and younger will conjure levitating magnets, see marbles that disappear in water and have some hair-raising fun with the Van De Graaff generator.
Six years old Katie Corfield from Bromsgrove has a hair-raising time at the Thinktank as she connected up to a Van de Graaff generator.