Isaac Newton
Isaac Newton was born in Lincolnshire, England in 1643, where he grew up on a farm. When he was a boy, he made lots of brilliant inventions like a windmill to grind corn, a water clock and a sundial. However, Isaac didn’t get brilliant marks at school. When he was 18, Isaac went to study at Cambridge University. He was very interested in physics, mathematics and astronomy. But in 1665 the Great Plague, which was a terrible disease, spread in England, and Cambridge University had to close down. Isaac returned home to the farm. Isaac continued studying and experimenting at home. One day he was drinking a cup of tea in the garden. He saw an apple fall from a tree. ‘Why do apples fall down instead of up?’ From this, he formed the theory of gravity. Gravity is an invisible force which pulls objects towards the Earth and keeps the planets moving around the Sun. Isaac was fascinated by light. He discovered that white light is in fact made up of all the colours of the rainbow. Isaac also