雨滴在落下的雨中分離電荷,這是由水滴破裂、水滴帶正電荷和空氣帶負電荷引起的。
基本介紹
- 中文名:勒納爾效應
- 外文名:Lenard effect
Separation of 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 are POSITIVE.
This provided an unexpected explanation for the refreshing,invigorating effect of residences does to a waterfall or spring, or even after rain.