Electrostatic Force Flow Visualization

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Scientific Paper
Title Electrostatic Force Flow Visualization
Author(s) Charles A Yost
Keywords coherent thread, corona, electron theory, high-voltage, ion flow, schlieren imagery
Published 1995
Journal Electric Spacecraft Journal
Number 16
Pages 7-19


Yost examines the discharge from the electrodes of a DSI Wimshurst generator. Schlieren imaging reveals a coherent thread constantly emanating from charged, pointed negative electrodes, and cumulus puffs at the negative electrode upon discharge. Corona effects of different-shaped cathodes and anodes are observed in the dark under a microscope.