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How does a digital watch work?
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Tiny quartz crystals inside the digital watch vibrate at a steady rate when an electric current from a battery is applied. A silicon chip picks up the vibrations and turns them into regular pulses. The pulses are displayed as numbers on the liquid crystal display (LCD) on the watch face.
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Previous:
Back
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Book:
Best Ever Q&A
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Section:
Science & Technology
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Chapter:
Everyday Science
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