Working Lights - Stage or auditorium lights, independent of the main theatrical system, used during rehearsals and while the crew sets up or breaks down the stage. Also, low wattage lights used to illuminate offstage. Used . obstacles and props tables unseen by the audience.. Used . ...
Auxiliary Input - A signal path that goes back to the sound console for line lever signals sent to a seperate outboard piece of equipment such as an EQ, Delay, Effect Processor, etc, via an Auxiliary Send.. Used . . Used . ...
Limelight - An early type of stage light in which an intense illumination is created when an oxyhydrogen flame is directed at a cylinder of lime, also called calcium oxide, which can be raised to white incandesce. Used . nce heat without melting to producing brilliant illumination. The limelight effect was discovered early in the nineteenth century by Goldsworthy Gurney. A Scottish engineer, Thomas Drummond. Used . , realized that the light would be useful for surveying and built a working version in 1826. Therefore, the light is sometimes known as the Drummond Light. The Limelights first theatrical use was in 1837 at ...
Joule - A term in the international system for a unit of electrical, mechanical, and thermal energy equal to the work done when a current of one ampere is passed through a resistance of one ohm for one second. Used . . Surge protectors are often given joule ratings, but this rating refers only to the amount of energy they can absorb, not what gets through. Its value was calculated originally by James Pr. Used . escott Joule, but the term was first introduced by Dr. Mayer of Heilbronn....
Plasma - A plasma display panel is a type of flat panel display with many tiny cells located between two panels of glass holding an inert mixture of gases like neon and xenon. The gas is electrically turned in. Used . to a plasma which then excites phosphors that emit light. . Used . ...