Titlebook: Eyes on the Universe; The Story of the Tel Patrick Moore Book 1997 Springer-Verlag London 1997 Galileo Galilei.earth.instruments.observator

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反話

,The “Leviathan of Parsonstown”,d to a mechanical drive, and it could never be used for serious photography or spectroscopy. Yet it was by far the most powerful telescope ever built up to that time, and it was used to make fundamental discoveries. Its immense light-grasp meant that it could show objects quite beyond the range of a