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Helium


1982 Larry Walters using lawn chair and 42 helium balloons, rose to 16,000'

1956 Willem H Keesom, Dutch physicist (Helium I/II), dies at 79

1920 J Norman Lockyer, English physicist (discovered helium in Sun), dies

1908 H Kamerlingh Onnes makes helium liquid (-269 degrees C)

1908 Dutch scientists produce solid helium

1876 Willem H Keesom, physicist, helium vast

1868 Pierre Janssan discovers helium in solar spectrum during eclipse

1853 Heike Kamerlingh Onnes, Dutch physicist, liquid helium, Nobel 1913

1836 Joseph Norman Lockyer, discoverer, Helium, /founder, Nature magazine



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