20 Things You Didn't Know About.. Time

Discover Magazine has an excellent article on 20 things you didn't know about time. They have other categorys.



Here are some of them: Full list here

-Green days. The Department of Energy estimates that electricity demand drops by 0.5 percent during Daylight Saving Time, saving the equivalent of nearly 3 million barrels of oil.

-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.

-According to quantum theory, the shortest moment of time that can exist is known as Planck time, or 0.0000000000000000000000000000000000000000001 second.

Full list here

Other cool ones:

20 things you didn't know....

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