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tunnel effect

   Also found in: Medical, Encyclopedia 0.02 sec.
tunnel effect
n
(Physics / General Physics) Physics the phenomenon in which an object, usually an elementary particle, tunnels through a potential barrier even though it does not have sufficient energy to surmount the barrier. It is explained by wave mechanics and is the cause of alpha decay, field emission, and certain conduction processes in semiconductors
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Created by atmospheric pressure differentials in the Gorge, Hood River is famous for its wind, which produces a tunnel effect and creates one of the best kite boarding and windsurfing areas.
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Alps TuMR element consists of an insulating layer sandwiched between highly magnetic layers that, when applied with a magnetic field, exhibits a tunnel effect in which an electric signal runs through the insulating body.
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