Gibbs, George James (1939) Cloudlets Travelled Across the Disc. [Image] (Unpublished)
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Abstract
1939 March 19 18:17
Cloudlets travelled across the o discin 3 to 4 secs
Heavy gale from N.W. March 20 (p.m.)
Assume 10 miles distance of cloudlets
AB = AC min 1/2 degree x 20 x 60 M.P.H.
= 10 x 0.008 x 20 x 60
8 x 2 x 6 = 96 M.P.H.
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