Hank Green Asks: What Happens After You Flush?

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What Exactly Does It Take for a Planet to Be Habitable?

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Hank Green Shows Us What Real Hoverboard Technology Would Look Like

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In light of Tony Hawk's fake HUVr technology video that got all of our hopes up about hoverboards, Hank Green explains what kind of technology would actually be required to produce hoverboards. No fake, just science. Knowledgify yourself.

Why Do We Cry?

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The Science of Gingers

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Do they really have no soul?

Burning Question: Is a Sharknado Possible?!

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