Anders Celsius

Anders Celsius Anders Celsius was born in, Uppsala, Sweden, year 1701. He was good at mathematic. He became a professor when he was 29 years old. He was professor in astronomy, the learn about space. I\'m sure that you have a thermometer at home, if you look carefully you will see the letter C. C stands for Celsius, they started to use it year 1741. Is the Earth round a...