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Armstrong effect
Production of static electricity by friction of a fluid / From Wikipedia, the free encyclopedia
The Armstrong effect is the physical process by which static electricity is produced by the friction of a fluid. It was first discovered in 1840 when an electrical spark resulted from water droplets being swept out by escaping steam from a boiler. The effect is named after William Armstrong, who later became 1st Baron Armstrong, who was one of several people involved in discovering the effect and investigating the processes involved.[1] Using this principle Armstrong went on to invent what he called the Armstrong Hydroelectric Machine, which, despite its name, generated static electricity and not hydroelectric power.
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