The figure of the earth derived by trian
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G.F.S.
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Article
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1929
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Elsevier Science
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English
โ 181 KB
CURRENr TOPICS. ## 447 in the bomb to provide the lines to be observed. Before explosion there was a continuous spectrum. Upon explosion the D lines appeared dark and, later, they flashed up bright, provided the arc of the lamp was cooler than the gases developed. It was possible to adjust the te