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Unformatted text preview: 1902 Oliver Heaviside and Arthur Kennelly separately predict existence of ionosphere 1908 Teisserence de Bort coins words "troposphere" & "stratosphere" 1915 " zones of silence " imply temperature inversion exists above troposphere 1920 Gordon Dobson infers temperature inversion from observed altitude of meteors 1924 Edward Appleton develops ionosonde; confirms existence of ionosphere 1925 Robert Watson-Watt coins word "ionosphere" 1929 Robert Godddard conducts first rocket probe of atmosphere 1930 Sydney Chapman and Vincent Ferraro propose existence of magnetosphere 1948 Rocket probes of upper atmosphere begun 1957 Sputnik I launched, first satellite to orbit the Earth 1958 Explorer 1 discovers Van Allen "radiation" belts 1959 Thomas Gold coins word "magnetosphere" 1959 W. G. Stroud et al. discover very cold summer mesopause 1961 Explorer 12 detects magnetopause 1963 Donald Carpenter discovers plasmapause...
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This document was uploaded on 09/16/2011.
- Spring '09