20 Things You Didn’t Know About Time
March 16th, 2009
Filed under: The Universe
Hey kids, did you know that:
One second used to be defined as 1/86,400 the length of a day. However, Earth’s rotation isn’t perfectly reliable. Tidal friction from the sun and moon slows our planet and increases the length of a day by 3 milliseconds per century.
This means that in the time of the dinosaurs, the day was just 23 hours long.
That, and a bunch more trivia about this most important stuff that just slips through your fingers.
Stumble it!
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