Electrophore

Part of speech: noun

Definitions

1. A device used to produce static electric charge by friction, typically consisting of a platform to hold a charge and a means to transfer it for experiments or demonstrations
2. An apparatus that generates and holds static electricity through rubbing materials together, often employed in physics to study electrical phenomena
3. Equipment designed to accumulate and deliver electrostatic charge created by friction, commonly utilized in educational settings to illustrate principles of electricity

Etymology: The electrophorus was invented in 1762 by the Swedish-born physicist Johan Carl Wilcke, and the name we use for the device is a scientific coinage built from two Greek-derived parts. The first part is "electro-", from "electricity", which itself comes from the Latin "electrum" (amber), since rubbed amber was the classic early example of static charge. The second part is "-phore", from Greek "phoros", meaning "bearing" or "carrier", the same element found in words like "semaphore" and "metaphor". Put together, the name describes something that carries electricity. The device works by induction rather than by pumping charge in from outside. A insulating plate is charged by friction, a metal plate is placed on it and briefly grounded, and then lifted off carrying a strong charge that can be drawn off as sparks. Because the same charge can be recovered again and again, the apparatus was valued as a steady, reusable source for lecture demonstrations.

Synonyms: electrophorus, electric eel