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De Phenomenis in Orbe Lunae : ウィキペディア英語版 | De Phenomenis in Orbe Lunae
''De Phenomenis in Orbe Lunae'' is a 1612 book by Collegio Romano philosophy professor Giulio Cesare de Galla that describes emission of light by a stone. De Galla's inspiration came from Galileo's debate with Vincenzo Casciarolo regarding a "lapis solaris," a stone that emitted light seemingly on its own. In ''De Phenomenis'' de Galla asserts that the stone was only able to emit light after the stone itself had calcified. It released "a certain quantity of fire and light" that it had absorbed just as water would be absorbed by a sponge.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「De Phenomenis in Orbe Lunae」の詳細全文を読む
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