In Pictures: Science vs. fiction: 15 sci-fi technologies that are (almost) here

Science fiction has a rich history of predicting the future. And in some cases, the future is now

Wrist-mounted computers Another classic sci-fi gadget from the pulp magazine days, the wrist-mounted computer must have seemed totally implausible to readers 50 years ago, when computers were the size of Buicks. The fiction is now, of course, established science. Wearable computers in various forms have been around for a couple decades, and wrist-mounted displays have long been in use in military and certain industrial capacities. The latest iteration of the wrist-mounted computer -- the smart watch -- is aiming for the consumer market with high-profile rollouts from heavyweights like Sony and Samsung. The 2014 Consumer Electronics Show had an entire section dedicated to smart watches.

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