Its discoverer, the Scottish physicist C.T.R. Wilson, spent 16 years working on it and ultimately shared the 1927 Nobel Prize with Arthur Compton for his work. Wilson began by attempting to duplicate the effects of clouds on mountaintops, by expanding air within a container and cooling it until it became supersaturated. Then Wilson used dust-free air, added radiation, and 
Its discoverer, the Scottish physicist C.T.R. Wilson, spent 16 years working on it and ultimately shared the 1927 Nobel Prize with Arthur Compton for his work. Wilson began by attempting to duplicate the effects of clouds on mountaintops, by expanding air within a container and cooling it until it became supersaturated. Then Wilson used dust-free air, added radiation, and over time perfected, FTP, this invention, the development of which was crucial to nuclear physics and the study of sub-atomic particles.
Its discoverer, the Scottish physicist C.T.R. Wilson, spent 16 years working on it and ultimately shared the 1927 Nobel Prize with Arthur Compton for his work.
{cloud chamber}