Everything about Electrostatic Levitation totally explained
Electrostatic levitation is the process of using an
electric field to lift a
charged object and counteract the effects of
gravity. It was used, for instance, in
Robert Millikan's
oil drop experiment and is used to suspend the gyroscopes in
Gravity Probe B during launch.
Due to
Earnshaw's theorem, no static arrangement of classical electrostatic fields can be used to stably levitate an object. There is a point where the two fields cancel, but it's unstable. However, it's possible to use dynamically changing electric fields to hold an object in position.
On the
Moon the
photoelectric effect and electrons in the
solar wind charges fine layers of
moon dust on the surface forming an atmosphere of dust floating in "fountains" over the surface of the moon.
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