From Greek philosophers to Russian spies, poisons have a long and colorful history. Easy to obtain and administer, they are often hard to detect or trace. They kill, but they also smooth wrinkles, calm nerves, provide visions, and cur...

Can you really tell a criminal by the bumps on his head? What does a memory look like? Can a machine think? Why are some people shy? Is it better not to feel so much? These are some of the many questions that are discussed in this com...

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