There has always been a great interest in the motion of planets. By the 16th century, a lot of data on the motion of planets had been collected by many astronomers. Based on these data, Johannes Kepler derived three laws that govern the planets’ motion. These are called Kepler’s laws. These are: Fig – Kepler’s …
Isaac Newton (1642 – 1727) Isaac Newton was born in Woolsthorpe near Grantham, England.He is generally regarded as the most original and influential theorist in the history of science.He was born in a poor farming family. But he was not good at farming. He was sent to study at Cambridge University in 1661. In 1665 …
UNIVERSAL LAW OF GRAVITATION Every object in the universe attracts every other object with a force . Attraction force is directly proportional to the product of their masses. F ∝ m1 × m2 Equation 1 The force between two objects is inversely proportional to the square of the distance between them, that is, F ∝ …
