network noise temperature

  • 81telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …

    Universalium

  • 82Copper wire and cable — Copper has been used in electric wiring since the invention of the electromagnet and the telegraph in the 1820s.[1][2] The invention of the telephone in 1876 proved to be another early boon for copper wire.[3] Today, despite competition from… …

    Wikipedia

  • 83JERUSALEM — The entry is arranged according to the following outline: history name protohistory the bronze age david and first temple period second temple period the roman period byzantine jerusalem arab period crusader period mamluk period …

    Encyclopedia of Judaism

  • 84Quiet PC — A quiet PC is a personal computer that makes little noise. Common uses for quiet PCs include video editing, sound mixing, home servers, and home theater PCs. A typical quiet PC uses quiet cooling and storage devices and energy efficient… …

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  • 85Automated airport weather station — Automated airport weather stations are automated sensor suites which are designed to serve aviation and meteorological observing needs for safe and efficient aviation operations and weather forecasting. Automated airport weather stations have… …

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  • 86technology, history of — Introduction       the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …

    Universalium

  • 87Ecology — For other uses, see Ecology (disambiguation). Ecology …

    Wikipedia

  • 88Mind uploading — This page is about whole brain emulation in futurism, transhumanism and science. See also Mind uploading in fiction. Whole brain emulation or mind uploading (sometimes called mind transfer) is the hypothetical process of transferring or copying a …

    Wikipedia

  • 89Underclocking — See also: Dynamic frequency and voltage scaling Underclocking, also known as downclocking, is the practice of modifying a synchronous circuit s timing settings to run at a lower clock rate than it was specified to operate at. It may be said to be …

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  • 90Rebreather — A fully closed circuit electronic rebreather (Ambient Pressure Diving Inspiration) Acronym CCUBA (Closed Circuit Underwater Breathing Apparatus); CCR (Closed circuit rebreather), SCR (Semi closed rebreather) Uses Breathing set …

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