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A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952. [1]
Two light switches in one box. The switch on the right is a dimmer switch. The switch box is covered by a decorative plate. The first light switch employing "quick-break technology" was invented by John Henry Holmes in 1884 in the Shieldfield district of Newcastle upon Tyne. [1]
A typical kitchen timer. A timer or countdown timer is a type of clock that starts from a specified time duration and stops upon reaching 00:00. An example of a simple timer is an hourglass. Commonly, a timer triggers an alarm when it ends. A timer can be implemented through hardware or software.
A Virginia man arrested on suspicion of "concealment of dead body" weeks after his wife vanished in late July is now charged with murder, police announced Monday. Naresh Bhatt was indicted Monday ...
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.
Brittany Mahomes is stepping up her WAG style in support of Patrick Mahomes!. At the Dec. 8, Kansas City Chiefs game against the Los Angeles Chargers at Arrowhead Stadium in Kansas City, Mo., the ...
As of Oct. 5, 11.2% of adults aged 18 years or above received an updated COVID-19 vaccine and 36.9% of adults 75 years or older received an RSV shot, according to CDC data. US CDC expects COVID ...
The first digital timer used in organized sports was the Digitimer, developed by Cox Electronic Systems, Inc. of Salt Lake City Utah (1962). [1] It utilized a Nixie-tube readout and provided a resolution of 1/1000 second. Its first use was in ski racing but was later used by the World University Games in Moscow, Russia, the U.S. NCAA, and in ...