Batteries
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How to keep battery powered clock from slowing down |
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The wall clock glass is broken |
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Lexon Flip Clock - screen digits are missing, |
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Deaf man needs to make a kitchen timer with a flashing light |
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Background and Identification
A clock is a mechanical or electronic device used to keep and indicate time. The clock is considered to be one of the oldest human inventions, and the technology behind them has constantly evolved over time.
