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  2. Snellen chart - Wikipedia

    en.wikipedia.org/wiki/Snellen_chart

    A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862 as a measurement tool for the acuity formula developed by his professor Franciscus Cornelius Donders.

  3. Thermoelectric generator - Wikipedia

    en.wikipedia.org/wiki/Thermoelectric_generator

    High generator output resistance: To get voltage output levels in the range required by digital electrical devices, a common approach is to place many thermoelectric elements in series within a generator module. The element's voltages increase, but so does their output resistance.

  4. Leet - Wikipedia

    en.wikipedia.org/wiki/Leet

    Alternatively, sometimes 3 or 6 letters can be leet-ified into a valid hexadecimal color code: "614D05" is a valid HEX-code for a dark shade of gold color, referencing to GLaDOS; "572E55" (or "572355") is a dark purple color, coming from "STRESS" word; "1C373A" is a dark cyan ("icy") color, derived from "ICE TEA";

  5. Electronic voice phenomenon - Wikipedia

    en.wikipedia.org/wiki/Electronic_voice_phenomenon

    The game is about an audio recordist called Juliette Waters, who records the voices of ghosts through electronic voice phenomenon. She finds herself trapped in an old family park, shut down since a landslide in 1971, and she now needs to use her recorder to survive the night. A sequel, Sylvio 2, was released on October 11, 2017.

  6. Plutonium - Wikipedia

    en.wikipedia.org/wiki/Plutonium

    The original gun-type plutonium weapon, code-named "Thin Man", had to be abandoned as a result—the increased number of spontaneous neutrons meant that nuclear pre-detonation was likely. [85] The entire plutonium weapon design effort at Los Alamos was soon changed to the more complicated implosion device, code-named "Fat Man".

  7. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Caesar cipher - Wikipedia

    en.wikipedia.org/wiki/Caesar_cipher

    A piece of text encrypted in a Hebrew version of the Caesar cipher is sometimes found on the back of Jewish mezuzah scrolls. When each letter is replaced with the letter before it in the Hebrew alphabet the text translates as "YHWH, our God, YHWH", a quotation from the main part of the scroll. [8] [9]

  9. International Article Number - Wikipedia

    en.wikipedia.org/wiki/International_Article_Number

    The total length of manufacturer code plus product code should be 9 or 10 digits depending on the length of country code (2–3 digits). In ISBN, ISMN and ISSN, it uniquely identifies the publication from the same publisher; it should be used and allocated by the registered publisher in order to avoid creating gaps; however it happens that a ...