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  2. AOL Mail

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    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!

  3. Southern Pacific 4449 - Wikipedia

    en.wikipedia.org/wiki/Southern_Pacific_4449

    No. 4449's replica builder's plate and American Freedom Train plaque. No. 4449 was the last member of the Southern Pacific Railroad's (SP) first order of GS-4 locomotives. No. 4449 was placed into service on May 30, 1941, and spent its early career assigned to the Coast Daylight, Southern Pacific's premier passenger train between San Francisco and Los Angeles, California, but it also pulled ...

  4. Power-on reset - Wikipedia

    en.wikipedia.org/wiki/Power-on_reset

    On an IBM mainframe, a power-on reset (POR) is a sequence of actions that the processor performs either due to a POR request from the operator or as part of turning on power. The operator requests a POR for configuration changes that cannot be recognized by a simple System Reset .

  5. Daylight harvesting - Wikipedia

    en.wikipedia.org/wiki/Daylight_harvesting

    The code encourages automatic daylight harvesting in secondary zones by awarding power adjustment factor credits that can be applied to the lighting design. [23] The 2009 International Energy Conservation Code (IECC) recognizes daylight zones around vertical fenestration and skylights, and requires that the lighting in these zones be controlled ...

  6. Twilight switch - Wikipedia

    en.wikipedia.org/wiki/Twilight_switch

    A twilight switch is an electronic component that allows the automatic activation of a lighting circuit when natural light drops in a given environment. Among a large number of uses, the most common is to enable automatic lighting of streets, roads, highways, roads, gardens, courtyards, etc., when sunlight drops below a certain level (e.g.: a ...

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  8. Automotive lighting - Wikipedia

    en.wikipedia.org/wiki/Automotive_lighting

    When activated by the stalk switch on the steering column, the signal lights and heating element turned on. The heat caused the bimetallic strip to bend such that it threw the leaf spring over centre, opening the circuit and breaking power to the heating element and the signal lights.

  9. Daytime running lamp - Wikipedia

    en.wikipedia.org/wiki/Daytime_running_lamp

    Full-voltage vs. parking light headlamp on European-market Volkswagen, 2007. Depending on prevailing regulations and equipment, vehicles may implement the daytime-running light function by functionally turning on specific lamps, by operating low-beam headlamps or fog lamps at full or reduced intensity, by operating high-beam headlamps at reduced intensity, or by steady-burning operation of the ...