photoelectric recorder

  • 11Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …

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  • 12Color television — Title card for NBC, promoting their broadcast in RCA color . Color television is part of the history of television, the technology of television and practices associated with television s transmission of moving images in color video. In its most… …

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  • 13History of electromagnetism — The history of electromagnetism, that is the human understanding and recorded use of electromagnetic forces, dates back over two thousand years ago, see Timeline of electromagnetism. The ancients must have been acquainted with the effects of… …

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  • 14List of Russian people — The Millennium of Russia monument in Veliky Novgorod, featuring the statues and reliefs of the most celebrated people in the first 1000 years of Russian history …

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  • 15William Thomson, 1st Baron Kelvin — Infobox Scientist box width = 300px name = Lord Kelvin image width = 300px caption = William Thomson, 1st Baron Kelvin (1824 1907) birth date = birth date|1824|6|26|df=y birth place = Belfast, Co. Antrim, Northern Ireland death date = death date… …

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  • 16electronic instrument — ▪ music Introduction       any musical instrument that produces or modifies sounds by electric, and usually electronic, means. The electronic element in such music is determined by the composer, and the sounds themselves are made or changed… …

    Universalium

  • 17Remote control — For other uses, see Remote control (disambiguation). A television remote control unit (RCU) A remote control is a component of an electronics device, most commonly a television set, used for operating the television device wireless …

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  • 18Ceilometer — A ceilometer is a device that uses a laser or other light source to determine the height of a cloud base. Ceilometers can also be used to measure the aerosol concentration within the atmosphere.Optical Drum Ceilometer* An optical drum ceilometer… …

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  • 19List of electronics topics — Alphabetization has been neglected in some parts of this article (the b section in particular). You can help by editing it. This is a list of communications, computers, electronic circuits, fiberoptics, microelectronics, medical electronics,… …

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  • 20Burglar alarm — Silent alarm redirects here. For the album, see Silent Alarm (album). Burglar (or intrusion), fire and safety alarms are all electronic today. Sensors are connected to a control unit via a low voltage hardwire or narrowband RF signal which is… …

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