Some math problems have been challenging us for centuries, and while brain-busters like these hard math problems may seem impossible, someone is bound to solve ’em eventually. Well, maybe. For now, ...

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When it comes to hard problems, computer scientists seem to be stuck. Consider, for example, the notorious problem of finding the shortest round-trip route that passes through every city on a map ...

Albert Einstein is widely seen as the greatest mind of the 20th century, but he was still a human being. Indeed, for all Albert Einstein's legendary breakthroughs in physics, he wasn't perfect, and he ...