New Cloud-Chamber Method for the Determination of Homogeneous Nucleation Rates

A new technique has been developed for making precise measurements of homogeneous nucleation rates. Corrections may be made for the effect of vapor depletion by the growing droplets which do not require a knowledge of the droplet-growth law. This data also offers valuable information about the droplet-growth mechanism and affords a reasonably accurate determination of the nucleation-rate-versus-supersaturation curve which is provided by theory. A meager amount of data of a preliminary character is presented.