Why We Can’t Walk Straight

Robert Krulwich explores the important mystery of why humans can’t walk in a straight line when blindfolded or without a fixed point.

Try as you might, you can’t walk in a straight line without a visible guide point, like the Sun or a star. You might think you’re walking straight, but as NPR’s Robert Krulwich reports, a map of your route would reveal you are doomed to walk in circles.

[via mefi]

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