A look at what it means for something to be hot or cold.

Direct download: Can_Humans_Really_Feel_Temperature.mp4
Category:general -- posted at: 7:08pm EST

Why the Order of Operations is WRONG

Direct download: The_Order_of_Operations_is_Wrong.mp4
Category:general -- posted at: 5:46pm EST

 Henry shares a simple rule for solving tricky mathematical problems.

Direct download: Foiled_Proof.mp4
Category:general -- posted at: 7:50pm EST

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