基本介紹
Separationof electric charges in falling rain, caused by the breaking up of the water droplets, the drops becoming positively charged and the air negatively charged.
More details
Lenard(1915)found that when water is atomized (e.g. on impact of a water droplet), negative and positive charges are SEPARATED.
Molecules which are torn from the surface of the water bear a NEGATIVE charge(small negative ions) whereas large drops of the entire mass of water arePOSITIVE.
This provided an unexpected explanation for the refreshing,invigoratingeffect of residences does to a waterfall or spring, or evenafterrain.
