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A robot that cheats

Think you’re good at rock-paper-scissors? You won’t beat this robot. That’s because it’s cheating: It’s still quite impressive though. Equipped with a high-speed video camera, it takes just one millisecond to recognise its opponent’s hand gesture without the need for special gloves or other such aids. This video was produced by the Ishikawa Oku Laboratory at Tokyo University. YouTube has plenty of other videos of robots playing rock-paper-scissors, or janken (じゃんけん), as the game is known in Japan.

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Header image: The three wise monkeys (三匹の猿) at Tōshō-gū shrine in Nikkō (日光東照宮), said to be the origin of the saying “Hear no evil, see no evil, speak no evil”. Photo: Frank Gualtieri.

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