Prove πR² using only beads and a ruler!

Direct download: Proof_Without_Words-_The_Circle.mp4
Category:science & medicine -- posted at: 6:21pm EST

In which we explain economic equilibrium, how to make money from nothing, and every fundamental force in physics.

Direct download: Every_Force_in_Nature_Theory_of_Everything_Part_III.mp4
Category:science & medicine -- posted at: 5:21pm EST

"Some infinities are bigger than other infinities" - Hazel Grace Lancaster, in "The Fault in Our Stars," by John Green 

Direct download: How_to_Count_Infinity.mp4
Category:science & medicine -- posted at: 7:58pm EST

If gravity is so attractive, why doesn't the earth just crash into the sun? Or the moon into the earth? The answer: Stable Orbits

Direct download: Why_the_solar_system_can_exist.mp4
Category:science & medicine -- posted at: 5:15pm EST

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