Tuesday, 28 February 2012

What Exactly Is a Year and How Is It Measured? [Video]

We all know that February 29th only exists every four years, but do you know what exactly a year is? Or how we came to that measurement? Minute Phsyics does, and they're happy to enlighten you in their latest video. More »


Source: http://feeds.gawker.com/~r/gizmodo/full/~3/_KmfiYMLuU4/what-exactly-is-a-year-and-how-is-it-measured

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