The Mystery Of Gravity

You stand quite firm on the ground and don't fly in the air like the people in one of Magrite's enigmatic paintings. The same force of gavity that keeps us quite reliably on the ground, as Newton discovered, made the apple fall from the tree and keeps the Moon in orbit preventing it falling onto the Earth. Now, ccording to Newton's universal law of gravitation. the gravitational force between two objects is proportional to the size of their masses and inversely affected by the square of their distance. Einstein's idea of the gravitational force is different, since he attributes it to geometry, to the curvature of spacetime. But let us go back to the great British physicist. Newton himself admitted that he did not understand the nature of the gravitational force that he discovered. He even said thet the idea of gravity was 'inconceivable'. 'That gravity should be innate, inherent and essential to matter, so that one body may act upn another at a distance', to me is 'a great absurdity', he pointed out. In other words Newton did not know what the force of gravity was.