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  2. Shop Mark & Graham's Big Gift Event and save up to 50% off ...

    www.aol.com/lifestyle/shop-mark-and-grahams-big...

    Shop Mark & Graham's Big Gift Event and save up to 50% off select items, 20% off clearance + free shipping ... get free shipping and an additional 20% off clearance items when you use the code ...

  3. Mobile network codes in ITU region 3xx (North America)

    en.wikipedia.org/wiki/Mobile_network_codes_in...

    This list contains the mobile country codes and mobile network codes for networks with country codes between 300 and 399, inclusively – a region that covers North America and the Caribbean. Guam and the Northern Mariana Islands are included in this region as parts of the United States. National operators

  4. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code. [1] The codes, developed during 1937–1940 and expanded in 1974 by the Association of Public-Safety Communications Officials-International (APCO), allow brevity and standardization of message traffic. They have historically been widely used by law ...

  5. Side project time - Wikipedia

    en.wikipedia.org/wiki/Side_project_time

    The 20% Project is responsible for the development of many Google services. Founders Sergey Brin and Larry Page advised that workers "spend 20% of their time working on what they think will most benefit Google". Google's email service 'Gmail' was created by the developer Paul Buchheit on his 20% time. In his project "Caribou", Buchheit used his ...

  6. 10–20 system (EEG) - Wikipedia

    en.wikipedia.org/wiki/10–20_system_(EEG)

    The 1020 system or International 1020 system is an internationally recognized method to describe and apply the location of scalp electrodes in the context of an EEG exam, polysomnograph sleep study, or voluntary lab research. This method was developed to maintain standardized testing methods ensuring that a subject's study outcomes ...

  7. Gray card - Wikipedia

    en.wikipedia.org/wiki/Gray_card

    A gray card is a flat object of a neutral-gray color that derives from a flat reflectance spectrum. A typical example is the Kodak R-27 set, which contains one 8 in × 10 in (20 cm × 25 cm) card and one 4 in × 5 in (10 cm × 13 cm) card, each with an 18% reflectance across the visible spectrum, and a white reverse side with a 90% reflectance.