What just happened? Halloween isn't here yet, but researchers have already unveiled a robotic hand that can detach itself and crawl around on tiny, leg-like fingers to access objects out of reach. The ...

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He works in mysterious ways.

While each product featured is independently selected by our editors, we may include paid promotion. If you buy something through our links, we may earn commission. Read more about our Product Review ...

Sometimes, to achieve true greatness, you have to give something up. Many of fantasy and science fiction’s greatest heroes have lost a hand along the way, but it just makes them more awesome. Here are ...