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Neil Armstrong’s reflection in faceplate.
Human hair is about 50 microns wide.
Triboelectric charging is caused by both differences in contact potential and frictional transfer of charge between grains in contact. photoionization. The ionization of an atom or molecule by the absorption of a high-energy photon.
Meteoroid- Debris in outer space; particle size to boulder size Meteorite- When a meteoroid lands on a celestial object
Triboelectric charging is caused by both differences in contact potential and frictional transfer of charge between grains in contact. photoionization. The ionization of an atom or molecule by the absorption of a high-energy photon. Lunar surface dayside charges positive since photoelectron currents caused by solar ultraviolet rays dominate. At night the lunar surface charges negative because plasma electron currents dominate.
The Center for Astrophysics, Space Physics, and Engineering Research conducts dusty plasma experiments in two GEC cells. Micrometer sized dust particles are introduced from the top. During their fall toward the lower electrode, they collect ions and electrons from the plasma and charge up. Due to the high electron mobility, this charge is negative and the dust particles are trapped in the electric field above the bottom electrode.