Today I Found Out
Why Do We Divide the Day Into Seconds, Minutes, and Hours? (2016x277)
Fecha de emisión: Dic 23, 2016
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https://www.youtube.com/user/TodayIFoundOut?sub_confirmat→“is it snack time”. The reality is, even though we’ve decided that there is a need to divide up time, the actual process and the way we go about it has been changing for millennia. The cruel irony is that even though we know we need to measure time, there has never been a consensus on what time really is.
Want the text version?: http://www.todayifoundout.com/index.php/2011/08/why-we-divide-the-day-into-seconds-minutes-and-hours/
Sources:
http://www.scientificamerican.com/article.cfm?id=experts-time-division-days-hours-minutes
http://en.wikipedia.org/wiki/Time
http://en.wikipedia.org/wiki/Gregorian_calendar
http://en.wikipedia.org/wiki/Horology
http://en.wikipedia.org/wiki/Escapement
http://en.wikipedia.org/wiki/Second
http://en.wikipedia.org/wiki/Hour
http://en.wikipedia.org/wiki/Minute
http://allwomenstalk.com/wp-content/uploads/2010/02/Clock.jpg
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