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Why do some years have an extra leap day and what is it for?

Also check out MinutePhysics' video: http://www.youtube.com/watc... & SciS...

In which John relates a condensed history of India, post-Indus Valley Civilization. John explores Hinduism and the origins of Buddhism. He also get...

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What would you say to an alien? Big Think turned to Bill Nye, aka, 'The Science Guy,' who heads Th...

It's leap year time... so what are years, anyway? And what do they have to do with the supermassive black hole in the core of the milky way?

Mr. G...

I do not claim any rights to this song.

The Hindu Pushup, executed in a much better way than the first video, visit www.power-fitness.info