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Historical Development of the Concept of Gravitational Force!
Transcript of Historical Development of the Concept of Gravitational Force!
1. The orbit of every planet is an ellipse with the Sun at one of the two focus points.
2. A line joining a planet and the Sun sweeps out equal areas during equal intervals of time.
3. The squares of the orbital periods of planets are directly proportional to the cubes of the major axis (half the "length" of the ellipse) of the orbits. This ended up playing a key role in the development of the concept of gravitational force, which Scientist number 3 expanded on.... Everyone knows about the classis story behind Newton's fixation on gravity. He saw an apple fall from a tree and was inspired to study gravity. Newton's story... In it he ended up formulating four famed laws. I won't go into detail about them but to put it out their simply....
1. An object in motion will remain in motion unless acted upon by a net force.
2. Force equals mass multiplied by acceleration.
3. To every action there is an equal and opposite reaction.
4. The force of gravity between two point masses is proportional to the product of the two masses and inversely proportional to the square of the distance between them. It has been made known that Newton's laws of universal graviation doesn't fully explain the concept of Graviational Force. That's where scientist 4 comes in to the fray. How Einstein reportedly got his inspiration to study gravity was through contemplating a man falling off a building. With Newton's law of universal graviation as a basis for Einstein's most famous work "The foundation of the General Theory of Relativity" in which he came up with his own theory of relativity.