Used Element Labs

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 ...

Folding - A folding truss is a truss that folds for easy storage and transport.. Used . . Used . ...

Rigging Hardware - Rigging Hardware applies to all the pins, hooks and other pieces used to connect and hoist gear into place.. Used . . Used . ...

Ampere - The ampere (symbol: A) is the SI base unit of electrical current equal to one coulomb per second. It is named after André-Marie Ampère, one of the main discoverers of electromagnetism.

Th. Used . e ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 metre apart in vacuum, would . Used . produce between these conductors a force equal to 2×10–7 newton per metre of length....

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....