Photographing the solar corona
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Article
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1883
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Elsevier Science
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English
β 66 KB
Photographing the Solar Corona. 7I ttainbow Glass. The soap-bubble colors upon glass are produced by a vapor, which is deposited on the hot glass before it goes into the annealing oven. The vapor comes from a mixture of protoehloride of tin, carbonate of baryta, and carbonate of strontian. It is sa