Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
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In Montreal, there's a bus stop with swings that play musical notes when you swing on them.
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During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
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Passengers on the Beijing subway can pay with plastic bottles.
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