Isaac Newton was a great scientist. He was born in 1642 and passed away in 1727.
He discovered the law of gravitation. He has been thinking about the problem for years. It was the sight of falling apple in his garden that gave him the important clue.
He found out that white light is made up of seven colours. We see these colours in a rainbow. Newton made many other discoveries.
He was a very learned man, but he was very humble. He is still honored for his three Newtonian Laws. Students have to learn them when they study mathematics in higher classes.