The Leap Year as Explained by Neil deGrasse Tyson StarTalk

Neil deGrasse Tyson explains the logic behind the leap year, with a brief history in calendars as well. Subscribe httpbit.lyNatGeoSubscribe Get More…

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Aubrey McDowell
I am passionate about blogging and love surfing the net. I love to share whether it's information on my personal opinion and connect with readers and other bloggers.

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