How can a doughy mortal hand, vulnerable to hangnails, over-heated bags of popcorn, and razor-sharp pieces of potato chip wedged between the keys of an ordinary computer keyboard, go through concrete ...

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There are probably easier and more efficient ways ways to break 111 concrete blocks than by using a front flip to smash your head against them, but don’t tell that to Kerim Ahmetspahic. Ahmetspahic is ...

This question originally appeared on Quora : The best answer to any question. Ask a question, get a great answer. Learn from experts and access insider knowledge. You can follow Quora on Twitter , ...