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LENARD EFFECT [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2004-09-24

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
DEF

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.

CONT

Dust and sandstorms are most often found to be negatively charged. The same explanation can be applied to waterfall electricity where the negative charge, induced by the fairweather field on a surface of water, is being carried over the edge of a waterfall. As the electrified water falls over the edge it breaks up into small drops and forms a mist of negative space charge, referred to as the Lenard effect or waterfall electricity...

OBS

Lenard effect... first studied systematically by the German physicist P. Lenard. Also called spray electrification, waterfall effect.

Key term(s)
  • water fall effect

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
DEF

Séparation de charges électriques dans la pluie, causée par le fractionnement des gouttelettes, celles-ci prenant une charge positive et l'air une charge négative.

CONT

L'effet Lenard, concernant la pluie et les cascades. Le frottement de l'air sur les gouttes d'eau, l'impact de celles-ci sur le sol ou les rochers, arrachent des électrons à ces gouttes; leur charge positive est aussitôt capturée par le sol tandis que les électrons sont bien entendu immédiatement piégés par l'oxygène [...]

Spanish

Campo(s) temático(s)
  • Fenómenos meteorológicos, climáticos y atmosféricos
DEF

Separación de cargas eléctricas en la lluvia, causada por la ruptura de las gotas.

OBS

Estas adquieren una carga positiva mientras que el aire se carga negativamente.

Save record 1

Record 2 2000-05-02

English

Subject field(s)
  • Meteorology
DEF

A theory of thunderstorm charge separation based upon the suggested occurrence of the Lenard effect in thunderclouds, that is the separation of electric charges due to the aerodynamic breakup of water drops.

Key term(s)
  • breaking drop theory

French

Domaine(s)
  • Météorologie
DEF

Théorie selon laquelle l'électrisation d'un nuage orageux est due à l'effet Lenard, c'est-à-dire que la séparation des charges électriques est liée à la rupture aérodynamique des gouttes d'eau.

Spanish

Campo(s) temático(s)
  • Meteorología
DEF

Teoría de separación de la carga en una tormenta eléctrica basada en la supuesta ocurrencia del efecto Lenard dentro de las nubes de una tormenta eléctrica; es decir, la separación de las cargas eléctricas es debida a la ruptura aerodinámica de las gotas de agua.

Save record 2

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