Inimbento ni Galileo Galilei ang pinakaunang telescope na tinatawag na light telescope. Ito ginamit nya sa pag-aaral ng mga butuin,constellations,comets etc. na nasa universe.
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He came up with the first thermometer and a pendulum clock and improved on the telescope, using a x20 magnification device to view the moon and stars, which got him into no end of trouble with the Inquisition.
Si galileo galilie ang umimbento ng telescope
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