Science tells us the object you see here cannot exist in the real world. It’s an illusion. An Escherian ruse. Ulrich Schwanitz says, “Pfft.” Now, normally, when people say they’ve designed a 3-D ...
What began as a bonus question in a high school math contest has resulted in a staggering 10 new ways to prove the ancient mathematical rule of Pythagoras' theorem. "There are no trigonometric proofs ...
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