Thursday, August 10, 2006

James A. Van Allen, Discoverer of Earth-Circling Radiation Belts, Dead

Iowa Physicist James A. Van Allen died. He gained global attention, discovered the bands around the earth known as the Van Allen Belts.Put more than 20 instruments in the first US satellite, Explorer. Heard the signal coming back from space. Found intense radiation that surrounds earth. Uncovered fact that Northern Lights are electrons.

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