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Wireless charging may be all the rage these days, but actually beaming electricity -- as sketched above by the man Tesla himself -- still has some snags.
Unlike some other high voltage experiments, a Tesla coil's streamers can be very harmful.
CIS 11 -- Introduction to Information Systems An Introduction to Logic Gates This web site provides a brief description of logic gates and defines a few of the common logic gates found in simple digital circuits.
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Computer science is an interesting field to go into.