zero-gravity switch
zero-gravity switch
[′zir·ō ¦grav·əd·ē ‚swich] (electricity)
A switch that closes as weightlessness or zero gravity is approached; in one version, a conductive sphere of mercury encompasses two contacts at zero gravity but flattens away from the upper contact under the influence of gravity. Also known as weightlessness switch.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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