Galileo Galilie(A.D. 1564-1642) a famous scientist noticed that a lamp suspended from the ceiling with a chain was moving slowly from one side to the other. He found that a pendulum of a given length takes always the same time to complete one oscillation. This observation led to the development o
a) Cars
b) Rockets
c) Quartz clocks
d) Pendulum clocks
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Answer:
d) Pendulum clocks
is the correct answer
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