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Ohm - A unit of measurement for the electrical resistance equal to that of a conductor in which a current of one ampere is produced by a potential of one volt across its terminals. One ohm is the resistanc. Used . e in a circuit when one volt maintains a current of one amp. The unit, originally ohma or ohmad, was first used by Charles Tilston Bright and Latimer Clark in 1861 and is still in use today.. Used . ...

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

Zoetrope - Early device for creating the illusion of continuous motion. A sequence of still pictures was viewed rapidly through slits in a rotating drum so that the images appeared to merge. . Used . . Used . ...

Advanced Control Network - A new protocol designed to improve upon on the exisiting known limitations of the DMX512 protocol. It was developed by the ESTA (The Entertainment Services and Technology Association).

T. Used . he Advanced Control Network (ACN) is intended to provide the next generation standard for the distribution of data in lighting control networks.
ACN needs to do much more than just supe. Used . rcede DMX. Ideally, ACN will unify lighting control networking, allowing a single network to carry many different kinds of lighting-related data and to connect equipment from different manufacturers. ACN is no

Absorption - A surfaces ability to absorb sound. Absorption is rated from 0 to 1.

Full absoption is 1. Full reflection is 0. . Used . . Used .