Issac Newton was a great English scientist. There are a lot of interesting stories about him.

One morning Newton got up very early because he was working on a very difficult problem. When he was thinking about the problem, his servant came into his study with an egg and a pan. She was going to boil it for Newton. “You can leave the egg with me and I will boil it,” said Newton. Then the servant went out of the study. When the servant came back again an hour later, Newton was still standing with the egg in his hand. What was in the pan? There was a watch. And the water in the pan was boiling.