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2. Light switch - Wikipedia

   en.wikipedia.org/wiki/Light_switch

   A toggle light switch Internal components of a toggle switch. The toggle mechanism provides "snap-action" through the use of an "over-center" geometry. The design was patented in 1916 by William J. Newton and Morris Goldberg. [2] The switch actuator does not control the contacts directly, but through an intermediate arrangement of springs and ...

3. Electric fence - Wikipedia

   en.wikipedia.org/wiki/Electric_fence

   The pulses were wide and the voltage unpredictable, with no-load peaks in excess of 10,000 volts and a rapid drop in voltage as the fence leakage increased. The switch mechanism was prone to failure. Later systems replaced the switch with a solid-state circuit, with an improvement in longevity but no change in pulse width or voltage control.

4. Foil (fencing) - Wikipedia

   en.wikipedia.org/wiki/Foil_(fencing)

   Contact with the side of the blade (a slap or slash) does not result in a score. The tip of the foil must be depressed for at least 15 (± .5) milliseconds while in contact with the opponent's lamé (wire-mesh jacket which covers valid target area) to score a touch. The foil lamé only covers the torso while in sabre it covers the whole upper body.

5. Multiway switching - Wikipedia

   en.wikipedia.org/wiki/Multiway_switching

   In contrast to a simple light switch, which is a single pole, single throw (SPST) switch, multiway switching uses switches with one or more additional contacts and two or more wires are run between the switches. When the load is controlled from only two points, single pole, double throw (SPDT) switches are used.

6. AOL Mail

   mail.aol.com

   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!

7. Vandal-resistant switch - Wikipedia

   en.wikipedia.org/wiki/Vandal-resistant_switch

   This vandal- and weather-resistant switch is used to request a traffic stop signal. Vandal-resistant switches (also referred to as vandal-proof switches) are electrical switches designed to be installed in a location (or device) and application where they may be subject to abuse and attempts to damage them, as in the case of pedestrian crossing switches.