People often complain about the lack of time. Indeed, for many of us having 24 hours in a day is not enough to sleep, eat, work and have a rest. To orient in time, humanity invented the clock, a unique device that went through a lot of transformations from huge stone discs to tiny watches.
Source: http://www.panarmeni...details/237093/
From sundials to wristwatches
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PaperBoy
, Apr 08 2017 08:44 AM
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