The scientist John Dalton carried out a series of experiments. He concluded that all matter was made of tiny particles called atoms. He suggested that an atom was a tiny solid ball. He published ...

John Dalton was born in 1766 in Cumbria, and worked for most of his life in Manchester. His achievements include: Developing atomic theory. This states that everything is made up of tiny particles ...

He became interested in science through receiving tuition from John Dalton, famed for his atomic theory. Joule set up a laboratory in the cellar of the family home. He began a series of ...