timing light — A stroboscopic unit that is connected to the secondary circuit to produce flashes of light in unison with the firing of a specific spark plug. By directing these flashes of light on the whirling timing marks the marks appear to stand still. By… … Dictionary of automotive terms
Light therapy — Intervention Bright light therapy is a common treatment for seasonal affective disorder and for circadian rhythm disorders. ICD 10 PCS … Wikipedia
Timing — is the spacing of events in time. Some typical uses are:* The act of measuring the elapsed time of something or someone, often at athletic events such as swimming or running, where participants are timed with a device such as a stopwatch. *… … Wikipedia
Timing mark — on pulley at 6° before TDC. A timing mark is an indicator used for setting the timing of the ignition system of an engine, typically found on the crankshaft pulley (as pictured) or the flywheel, being the largest radius rotating at crankshaft… … Wikipedia
light — [1] Something that is easy to operate. [2] Something that has relatively little weight. [3] A vehicle window. See backlight. [4] An illumination device. [5] A British term for window. Also see auxiliary brake light auxiliary driving light back up … Dictionary of automotive terms
Light gun — A light gun is a pointing device for computers and a control device for arcade and video games. The first light guns appeared in the 1930s, following the development of light sensing vacuum tubes. It was not long before the technology began… … Wikipedia
Light effects on circadian rhythm — Numerous organisms maintain inherent individual rhythms to biological processes, known as circadian rhythms, that assist the organism in maintaining functional periodicity relative to the 24 hour day/night cycle of the earth. These rhythms are… … Wikipedia
Light rail in North America — The term light rail was coined in 1972 by the U.S. Urban Mass Transit Association (UMTA) to describe new streetcar transformations which were taking place in Europe and the United States. The Germans used the term stadtbahn to describe the… … Wikipedia
Light rail in the United States — The use of light rail in the United States is low by European standards. According to the American Public Transportation Authority, of the 20 odd light rail systems in the United States only five (Boston, San Francisco, Los Angeles, San Diego and … Wikipedia
Light board operator — In the performing arts and stagecraft, the Light Board Operator is the technician in charge of operating all lighting equipment for a performance, with the possible exception of the spotlights/follow spots, which are usually handled by one or… … Wikipedia
