The Cloud Chamber was invented by Charles Thomson Rees Wilson (1869 - 1959) an eminent Edinburgh scientist. After observing optical atmospheric phenomena in the Highlands, he realized that condensation trails could be used to track and detect atomic and subatomic particles. The cloud chamber became an indispensible detection device in nuclear physics, and therefore he was awarded the Nobel Prize in 1927. In addition to his research on atomic physics, Wilson studied atmospheric phenomena all his life and his work on the electrical behaviour of the atmosphere is the basis of our understanding of what is involved in thunderstorms. Visit my website for some great bargains www.sonorared.com Kerr.