Sir Isaac Newton saw an apple fall onto the ground and recognized that a force was causing this to happen. He named the force Gravity.
Gravity is a force produced between two things with volume and mass. All objects have their own gravitational force. Smaller objects can be pulled towards the bigger objects. Gravity is the reason why the atmosphere is still in place. Nowbody in this world knows how gravity works, it just does. Gravity is everywhere on earth. An example of it is "An apple falls from a tree".
Newton was one of those great people in history that everyone thought of. He was a very intelligent human being.
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