What areas did JJohn Dalton research?

John Dalton was primarily known for his pioneering work in the field of chemistry and meteorology. He is best known for developing the atomic theory, which proposed that matter is composed of indivisible atoms and introduced the concept of atomic weights. Dalton also conducted significant research in the study of gases, particularly in understanding gas laws and the behavior of gases under different conditions. Additionally, he explored color blindness, which is sometimes referred to as Daltonism in honor of his contributions to the understanding of the condition.