A small Egyptian funereal statue dating to 1800 B.C. has been turning heads at a British museum ever since people noticed that it was slowly spinning to turn its back on visitors. A time-lapse video reveals that the statue slowly turns 180 degrees from guests during the day but remains still at night. The likely explanation is a combination of a force called "vibrational stick-slip friction" and the statue's weight balance, says scientist Paul Doherty.

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