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  2. Electromagnetic lock - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_lock

    These door holders were traditionally used to hold doors open, but in this application Saphirstein believed that they could be packaged and adapted to work as a fail-safe lock. After a successful prototype and installation at the Forum, Saphirstein continued evolving and improving the design and established the Locknetics company to develop ...

  3. Water timer - Wikipedia

    en.wikipedia.org/wiki/Water_timer

    It is used in conjunction with irrigation sprinklers to form an automated or non-automated sprinkler system, capable of administering precise amounts of water, at a regular basis. A water flow timer using a ball valve contains an electric motor with gears to stop or start the water flow by turning a perforated ball within the water flow line.

  4. Irrigation - Wikipedia

    en.wikipedia.org/wiki/Irrigation

    Micro-irrigation, sometimes called localized irrigation, low volume irrigation, or trickle irrigation is a system where water is distributed under low pressure through a piped network, in a pre-determined pattern, and applied as a small discharge to each plant or adjacent to it. Traditional drip irrigation use individual emitters, subsurface ...

  5. Door - Wikipedia

    en.wikipedia.org/wiki/Door

    A sliding glass door, sometimes called an Arcadia door or patio door, is a door made of glass that slides open and sometimes has a screen (a removable metal mesh that covers the door). Australian doors are a pair of plywood swinging doors often found in Australian public houses.

  6. Kill switch - Wikipedia

    en.wikipedia.org/wiki/Kill_switch

    An emergency switch in Japan. On railways, [1] an emergency stop is a full application of the brakes in order to bring a train to a stop as quickly as possible. [2] This occurs either by a manual emergency stop activation, such as a button being pushed on the train to start the emergency stop, or on some trains automatically, when the train has passed a red signal or the driver has failed to ...

  7. Fire sprinkler - Wikipedia

    en.wikipedia.org/wiki/Fire_sprinkler

    A fire sprinkler mounted on a ceiling. A fire sprinkler or sprinkler head is the component of a fire sprinkler system that discharges water when the effects of a fire have been detected, such as when a predetermined temperature has been exceeded. Fire sprinklers are extensively used worldwide, with over 40 million sprinkler heads fitted each year.

  8. Songs in the Key of Life - Wikipedia

    en.wikipedia.org/wiki/Songs_in_the_Key_of_Life

    By 1976, Stevie Wonder had become one of the most popular figures in R&B and pop music, not only in the U.S., but worldwide. Within a short space of time, the albums Talking Book, Innervisions and Fulfillingness' First Finale were all back-to-back-to-back top five successes, with the latter two winning the Grammy Award for Album of the Year in 1974 and 1975, respectively.

  9. Alexander Key - Wikipedia

    en.wikipedia.org/wiki/Alexander_Key

    Alexander Key was born in 1904 in LaPlatte, Maryland to Alexander Hill and Charlotte (Ryder) Key. The family soon moved to Florida, where he spent the next 6 years of his life. His father owned a sawmill and cotton gin, both of which were burned by night riders shortly before his father's death when Key was about six. Between the time of his ...