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Radiation

1991 John Lawrence, examined effect of neutron radiation on fabric, dies 1965 A Penzias and R Wilson detect 3 degrees K primordial background radiation 1959 Explorer VI reveals an intense radiation belt around Earth 1958 James van Allen discovers radiation belt 1956 U.S. Lab detects high-temperature microwave radiation from Venus 1951 E Purcell and EM Ewen detect 21-cm radiation at Harvard physics lab 1914 James Van Allen, U.S. physicist, discovered Van Allen radiation belts 1896 Emile Grubbe is 1st dr to use radiation treatment for breast cancer

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