UNIVERSE
ASTEROIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Who first determined the properties of gravity?
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Copernicus
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Galilei
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Newton
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Ptolomy
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Explanation:
Detailed explanation-1: -Legend has it that Isaac Newton formulated gravitational theory in 1665 or 1666 after watching an apple fall and asking why the apple fell straight down, rather than sideways or even upward.
Detailed explanation-2: -The first measurement of G was made in 1798 by Henry Cavendish, who used a torsion balance designed by John Michell to measure the constant with 1% uncertainty. A torsion balance comprises a dumbbell-shaped mass suspended from its centre by a thin wire.
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