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  2. Anderson Powerpole - Wikipedia

    en.wikipedia.org/wiki/Anderson_Powerpole

    Different keying for each colour in the SB50 series. Note that black and grey are keyed the same making them interchangeable. For the larger multipole design, which is available in up to 700 A sizes, each color is physically keyed so as to mate only with a like colored connector, and Anderson published a list of recommended voltage for each color:

  3. 112 (emergency telephone number) - Wikipedia

    en.wikipedia.org/wiki/112_(emergency_telephone...

    A "cocaine alert" sign posted by GGD Amsterdam: the sign reminds people to "Call 112 for an ambulance."112 was first standardised as the pan-European number for emergency services following the adoption of recommendation [1] by the European Conference of Postal and Telecommunications Administrations (CEPT) in 1976 and has since been enshrined a CEPT Decision ECC/DEC/(17)05.

  4. Von Luschan's chromatic scale - Wikipedia

    en.wikipedia.org/wiki/Von_Luschan's_chromatic_scale

    The von Luschan scale was used to establish racial classifications of populations according to skin color; in this respect it is in contrast to the Fitzpatrick scale intended for the classification of the skin type of individuals introduced in 1975 by Harvard dermatologist Thomas B. Fitzpatrick to describe sun tanning behavior.

  5. Heathkit - Wikipedia

    en.wikipedia.org/wiki/Heathkit

    The Heath Company was founded as an aircraft company in 1911 [5] by Edward Bayard Heath with the purchase of Bates Aeroplane Co, soon renamed to E.B. Heath Aerial Vehicle Co. Starting in 1926 it sold a light aircraft, the Heath Parasol, in kit form. [6]

  6. HP calculators - Wikipedia

    en.wikipedia.org/wiki/HP_calculators

    Graphing calculator designed by Kinpo Electronics, Inc. [3] HP 9s: 2002 Scientific calculator designed by Kinpo Electronics, Inc., with the same form factor as the 9g and the 30S HP-10: 1977 Basic four-function calculator with printer and conventional arithmetic entry (no RPN). HP-10B: 1987 Financial calculator HP-10C: 1982

  7. E series of preferred numbers - Wikipedia

    en.wikipedia.org/wiki/E_series_of_preferred_numbers

    It consists of the E3, E6, E12, E24, E48, E96 and E192 series, [1] where the number after the 'E' designates the quantity of logarithmic value "steps" per decade. Although it is theoretically possible to produce components of any value, in practice the need for inventory simplification has led the industry to settle on the E series for ...

  8. TIA-598-C - Wikipedia

    en.wikipedia.org/wiki/TIA-598-C

    The Telecommunications Industry Association's TIA-598-C Optical Fiber Cable Color Coding is an American National Standard that provides all necessary information for color-coding optical fiber cables in a uniform manner.

  9. 3D printing processes - Wikipedia

    en.wikipedia.org/wiki/3D_printing_processes

    The nozzles were manufacturable and the Pixelmaster was born. There were 32 inkjet single nozzles per printhead, printing 4 colors (8 jets per color) CMYK. The mechanism was a printhead rotating at 121 rpm and placing uniform size and shaped drops precisely in place as subtractive color text and image printing for the graphics industry.