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The Age of the Earth1 - Nature
Nature· 2 days agoIn attempting a problem of this kind, when we seek to plumb into the depths of time, far beyond human experience, we cannot afford to neglect evidence drawn ...
D'arrest's Spectroscopical Researches - Nature
Nature· 2 days agoWHEN the late Prof, d'Arrest was called to superintend the building of the new observatory in Copenhagen and the erection of a large refractor (16 feet focal length by 11 inches aperture), he ...