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Robert Hooke
measured a height dependence of gravity using the periodic time of pendulum led to no measurable results.http://bdaugherty.tripod.com/hooke/gravity.html -
Newtonian apple and the Theory of Gravitation
Isaac Newton provided one of the most significant contributions to the theory of gravity. He argued that the orbit of the moon depended on the same type of force that causes an apple to fall on Earth. -
Henry Cavendish
The Cavendish experiment,was the first experiment to measure the force of gravity between masses in the laboratory and the first to yield accurate values for the gravitational constant. -
Einstein predicts gravitational redshift
What we now call gravitational redshift was first proposed by Einstein from his thoughts in the development of general relativity. -
General relativity theory of Einstein
Einstein came up with the general relativity theory. This theory argues that gravity affects all forms of matter and energy, all of which moves in space time. -