Which astronomer designed scientific instruments, including a new kind of thermometer, an improved compass, and a more powerful telescope? He also discovered four moons orbiting the planet Jupiter. Options-

Which astronomer designed scientific instruments, including a new kind of thermometer, an improved compass, and a more powerful telescope? He also discovered four moons orbiting the planet Jupiter.

Options-
A. Galileo Galilei
B. Nicolaus Copernicus
C. Johannes Kelper
D. Ptolemy

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Which astronomer designed scientific instruments, including a new kind of thermometer, an improved compass, and a more powerful telescope? He also discovered four moons orbiting…

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