By Rhianna

William Henry was born on December 12, 1774, in Manchester. William Henry was an English chemist. He developed what is known today as Henry's Law which is that the amount of a gas that will be absorbed by water increases as the gas pressure increases. William Henry was awarded an Copley Medal and praised it very much. His religion was Episcopalian. He died on September 2, 1836.

James Prescott Joule was born onDecember 24, 1818 in Salford. He was an English physicist. Joule studied the nature of heat, and discovered its relationship to mechanical work in each state of matter. His name is now the unit for heat. He was awarded a Copley Medal and a Royal Medal. He died on October 11, 1889.

John Dalton was born on September 6, 1766 in Cockermouth. John Dalton started his teaching career at the age of 12 when he joined his 15-year-old brother in running the Eagles field Quaker grammar school. He taught there for 15 years until he moved to Manchester. At the age of 27, he taught mathematics and natural philosophy at the New College, an academy that dissented from the norm of only being open to Anglicans. John Dalton was an English chemist, meteorologist and physicist. He is best known for his pioneering work in the development of modern atomic theory for gases, and his research into colour blindness. He died on July 27, 1844.

Ernest Rutherford was born on August 30, 1871 in Brightwater. Rutherford worked on radioactivity (solid - metal), coining the terms ‘alpha’ and ‘beta’ to describe the two different types of radiation emitted by uranium and thorium. He also observed that radioactive material took the same amount of time for half of it to decay, known as its “half life”.Ernest Rutherford died on October 19, 1937.