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Van de Graaff, Robert Jemison |
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Van de Graaff, Robert Jemison (văn də gräf), 1901–67, American physicist, b. Tuscaloosa, Ala., grad. Univ. of Alabama (B.S., 1922), Ph.D. Oxford, 1928. He was research associate at Massachusetts Institute of Technology (1931–34) and associate professor from 1934. He developed an electrostatic particle accelerator particle accelerator, apparatus used in nuclear physics to produce beams of energetic charged particles and to direct them against various targets. Such machines, popularly called atom smashers, are needed to observe objects as small as the atomic nucleus in studies ..... Click the link for more information. —now called a Van de Graaff generator—used in nuclear research. Introduced in 1931, it uses the charge that accumulates from a rapidly moving belt inside an insulated hollow metal globe to produce high-voltage electrical discharges that look like lightning. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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