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  2. Switch - Wikipedia

    en.wikipedia.org/wiki/Switch

    A "T-rated" wall switch (the T is for Tungsten filament) [9] that is suited for incandescent loads. When turned on, an incandescent lamp draws a large inrush current of about ten times the steady-state current; as the filament heats up, its resistance rises and the current decreases to a steady-state value. A switch designed for an incandescent ...

  3. Electromagnetic lock - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_lock

    This button usually has a timer that, once the button is pressed, keeps the lock unlocked for either 15 or 30 seconds in accordance with NFPA fire codes. Additionally a second release is required by fire code. [5] Either a motion sensor or crash bar with internal switch is used to unlock the door on the egress side of the door automatically.

  4. Miniature snap-action switch - Wikipedia

    en.wikipedia.org/wiki/Miniature_snap-action_switch

    In 1937 W.B. Schulte, [2] McGall's employer, started the company MICRO SWITCH. The company and the Micro Switch trademark have been owned by Honeywell Sensing and Control since 1950. [3] The name has become a generic trademark for any snap-action switch. Companies other than Honeywell now manufacture miniature snap-action switches.

  5. Mercury switch - Wikipedia

    en.wikipedia.org/wiki/Mercury_switch

    A Single-Pole, Single-Throw (SPST) mercury switch on millimetre graph paper, device length approximately 1.5 cm Another mercury switch design. A mercury switch is an electrical switch that opens and closes a circuit when a small amount of the liquid metal mercury connects metal electrodes to close the circuit. There are several different basic ...

  6. Electromagnetic door holder - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_door_holder

    A simple electromagnetic door holder consists of a strong electromagnet, usually attached to a wall or mounted in a floor pedestal enclosure, next to the door it controls. The mechanism may be mounted near the floor, at the upper corner of the open door, or at any convenient height along the latch edge (away from the hinged edge).

  7. Man 'Downgrades' Sister-in-Law's Christmas Gift After Seeing ...

    www.aol.com/man-downgrades-sister-laws-christmas...

    Later, the man's brother called to ask him if he had planned to do "the bait and switch." "I told him I didn’t but after she went half of the range we agreed on, I decided to get her a band that ...

  8. Hair Growth Oil Doesn't Really Work. Just Buy the Minoxidil.

    www.aol.com/hair-growth-oil-doesnt-really...

    Rosemary Oil. A very common oil included in natural hair growth products, studies have noted the efficacy of rosemary in promoting hair growth. In one study, results showed that rosemary oil may ...

  9. When does 'No Good Deed' come out? How to watch Ray ... - AOL

    www.aol.com/does-no-good-deed-come-200044366.html

    O-T Fagbenle as Dennis. Teyonah Parris as Carla. Abbi Jacobson as Leslie Fisher. Denis Leary as Mikey. Poppy Liu as Sarah. Matt Rogers as Greg. Kate Moennig as Gwen. Linda Lavin as Phyllis.