Clocks come in many forms ---- one of the earliest types of time-keeping devices used water draining from a pot to mark time.
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We have 60 seconds in a minute and 360 degrees in a circle because the ancient Babylonians did math in base 60 instead of base 10
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A 'moment' is a medieval unit of time equal to 90 seconds.
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Clocks were made with only an hour hand until 1687
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A microwave oven consumes more electricity powering its clock than it does heating food.
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A second is called a second because it's the result of the second division of an hour by 60.
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Clocks were, before 1687, made with only an hour hand.
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Timekeeping is deeply cultural --- The Incas measured in units of time based on how long it takes to cook a potato.
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Clocks run to the right (clockwise) because in the Northern hemisphere that's how sundials cast shadow
See also
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