Here’s what that tiny black triangle above airplane windows means

You just might spot a little red or black triangle above the airplane seat. Usually, you can spot one or two of these ...
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15 sneaky math puzzles hiding inside the Great Pyramid

The Great Pyramid of Giza is often treated as a monument of stone, but it also functions as a monument of numbers. I see at ...

Lost in the triangle: The disappearance of one of MMA’s basic submissions

One of the most traditionally practiced chokes in jiu-jitsu, the triangle was responsible for timeless moments in MMA history ...