photoelectric cell
91photocell — /ˈfoʊtoʊsɛl/ (say fohtohsel) noun 1. → photoelectric cell. 2. → photoconductive cell …
92photocathode — noun a cathode that emits electrons when illuminated • Hypernyms: ↑cathode • Part Holonyms: ↑photoelectric cell, ↑photoconductive cell, ↑photocell, ↑electric eye, ↑magic eye …
93sensing element — noun any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner • Syn: ↑detector, ↑sensor • Derivationally related forms: ↑sense (for: ↑sensor), ↑detect ( …
94exciter lamp — noun : a lamp whose light passes through the sound track of a motion picture film and enters a photoelectric cell causing the current fluctuations that actuate the loudspeaker * * * a lamp that produces a light that passes through a film… …
95electric eye — noun Date: 1898 photoelectric cell …
96photocell — noun Etymology: International Scientific Vocabulary Date: 1891 photoelectric cell …
97eye — I. noun Etymology: Middle English, from Old English ēage; akin to Old High German ouga eye, Latin oculus, Greek ōps eye, face, Sanskrit akṣi eye Date: before 12th century 1. a. a specialized light sensitive sensory structure of animals that in… …
98Carl Sagan — Sagan in 1980 Born November 9, 1934( …
99Electronic music — For electronic musical instruments, see Electronic musical instrument. For other uses, see Electronic music (disambiguation). See also: List of electronic music genres and List of electronic music festivals Electronic music is music that… …
100Russia — This article is about the current country. For other uses, see Russia (disambiguation). Russian Federation Российская Федерация Rossiyskaya Federatsiya …
