The Physics of Karate

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Have you ever wondered how karate masters could break blocks of concrete without shattering their own hands? It turns out that it is not strength or durability, but technique which matters the most: it’s all for naught if your hand doesn’t reach a speed of 10.6 meters per second. And why doesn’t your hand shatter? It turns out that human bone is five times stiffer than concrete and fifty times harder to break. Read full article here

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