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/ The Way Things Work / Way Things Work, The (1994)(Dorling Kindersley).iso / principl / qsnd / qsnd1x.dib (.png) < prev    next >
Bitmap Image  |  1994-05-10  |  10.2 KB  |  181x102  |  4-bit (14 colors)
   ocr: ELECTRICAL SIGNAL A microphone is - used. to comvert sound waves mto a continuously: varyung electrical signal.