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Historical Summary Fermi and Hargreaves calculated a in 1930 Rabi measured in lab 1949 Van der Hulst suggested that this line might be detectable from space about 1945 Ewan and Purcell detected radio spectrum in 1951. Harry Kroto 2004. Harry Kroto 2004. Spiral Galaxy. Harry Kroto 2004.
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Historical Summary Fermi and Hargreaves calculated a in 1930 Rabi measured in lab 1949 Van der Hulst suggested that this line might be detectable from space about 1945 Ewan and Purcell detected radio spectrum in 1951 Harry Kroto 2004
Spiral Galaxy Harry Kroto 2004
Spiral Galaxy Harry Kroto 2004
Spiral Galaxy Harry Kroto 2004
Spiral Galaxy Harry Kroto 2004
Spiral Galaxy Harry Kroto 2004
Spiral Galaxy Harry Kroto 2004
Sun Harry Kroto 2004
Sun 1.6 H atoms per cc Harry Kroto 2004
E Harry Kroto 2004
E Harry Kroto 2004
E a Harry Kroto 2004
E a b Harry Kroto 2004
E a b c Harry Kroto 2004
E a b c Harry Kroto 2004
a’ E a b c Harry Kroto 2004
b’ a’ E a b c Harry Kroto 2004
b’ c’ a’ E a b c Harry Kroto 2004
b’ c’ a’ E a b c Harry Kroto 2004
b’ c’ a’ E a b c Harry Kroto 2004
a and b Blue Shifted c Red shifted Intensity a b c - v 0 +v Harry Kroto 2004
The data that indicate that the Milky Way is a Spiral Galaxy Harry Kroto 2004
The Doppler shifts not great enough to spatially resolve the clouds in this segment Smeared out? Harry Kroto 2004
-v Blue shifted +v Red shifted Doppler Shift / = / = v/c Harry Kroto 2004