________________
‣
PHILOSOHPY & SCIENCE
5
the theories developed in this respect by Kopernikus have been replaced by Professor Einstein's "Theory of Relativity" Hence, how can we conclude that the theory of Einstein is going to stand good for all times to come
Newton discovered the Law of Gravitation In those days the theory that the earth is round and
that it is rotating round the sun, was in its infancy Thus theory had given rise to many problems viz "If the earth is round how can oceans like the Indian Ocean remain static, why does their water not flow out to the sky? How is the earth moving in its orbit so punctually? Why is the moon rotating round the earth and why are the other planets and satellites moving round the sun? How and why is their motion uniform?" Pondering over all these difficult questions Newton, the great thinker, was one day sitting in his garden He saw an apple falling from the tree and coming down to the earth Incidentally he started thinking "Why should this fruit necessarily come down to the earth? Why did it not go up?" And by so thinking Newton came to the conclusion that the earth possesses force of attraction He further developed this idea and it ultimately came to be known as Newton's Law of Gravitation After this incident and his final discovery of the Law of Gravitation, Newton found that the Law of Gravitation was applicable not only to every atom of this earth but also to the other planets and satellites. With the help of this law, Newton solved all the pro