11. For example, atomic theory is an approximation of quantum mechanics. 12. Students in chemistry classes create animated examples of atomic theories they have learned in class. 13. Democritus and his teacher Leucippus, are known for formulating an atomic theory for the cosmos. 14. ;1905 : Albert Einstein explains Brownian motion in a way that definitively proves atomic theory . 15. Sergeant Pluck introduces the atomic theory of the bicycle. 16. :Dalton's theory is " chemically " correct, but quantum and atomic theory has superseded it. 17. He accorded an effective support to Dalton's atomic theory . 18. "Lamont Cranston Blues Band " ( Atomic Theory Records ) _ Lamont Cranston Blues Band 19. Dalton also believed atomic theory could explain why water absorbs different gases in different proportions. 20. Most of the atomic theories to explain them.