Edison effect
(mathematics) A regular three-dimensional object in which every cross-section is a circle; the figure described by the revolution of a circle about its diameter .
(mineralogy) A mineral, mostly composed of rutile, occurring in igneous rocks, often by alteration of ilmenite or other titanium minerals
(now largely obsolete) Alternative form of yaupon
The thermionic effect by which electrons are transferred from a hot cathode into a vacuum, in a vacuum tube.
実験室の実験は熱電子放出を確認し、加熱された陰極から真空管内へ電子が流れ出す様子を示した。
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