Abstract: The charge on an AgI particle, freely suspended in an air current of terminal velocity, has been measured at various temperatures, humidities and cooling rates. The wall of the flow pipe serves as a source or sinkfor water ...

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Abstract: Collision efficiencies E have been determined from particle trajectories for the case of a 1-mm glass sphere and 6?20 ? spherical glass particles falling in still air. An empirical formula for the dependence of E upon ...

Abstract: The collision of a falling drop With a small particle has been studied by high-speed photography. The trajectory of the particle relative to the center of the drop and relative to a fixed point has been determined under ...

Abstract: Experiments were conducted with sublimate AgI or AgI smoke in an expansion chamber at various temperatures. A condensate cloud of liquid droplets was formed at all temperatures. Below ?5C ice crystals appeared in the cloud ...