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Siebold, Philipp Franz van

(Encyclopedia) Siebold, Philipp Franz vanSiebold, Philipp Franz vanfēˈlĭp fränts fen zēˈbôlt [key], 1796–1866, German naturalist and physician; son of A. E. von Siebold. He was noted for his studies…

magnetosphere

(Encyclopedia) magnetosphere: see Van Allen radiation belts.