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35 Pages Complete Study Notes Year: Pre-2021

i. Discuss Galileo’s use of the telescope to identify features of the moon In 1609, after hearing of the basic principle of the telescope, Galileo Galilei built a telescope of his own that had a magnification of about 10. The potential of this instrument for military and commercial purposes so impressed the Venetian Senate that they funded the building of another larger telescope. This time Galileo constructed a telescope with an aperture of about 5cm and a magnification of about 20. Galileo then used this telescope to make a series of astronomical observations.


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