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channax 7 year s ago
Bonus 2 : OF COURSE, it's a MIRROR , Einstein ! ! !
       
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Alarm clock, ca. 400 BC

The Greek philosopher Plato used a water clock that could emit a sound signal to remind him that it was time to begin his lectures. Water-powered alarms were further developed in Ancient Rome and the Middle East. Mechanical striking clocks that were able to chime at a certain time of the day first appeared in China in the 8th century AD and made their way to Europe by the 14th century.

 

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