Between Star Trek's transporters, replicators, and holodeck, it's frankly astonishing that anyone ever got anything done in that universe. But one of those devices stands out as both incredibly practical and tantalizingly in-reach: the tricorder. Able to diagnose an illness, scan for lifeforms, and analyze the composition of an atmosphere, these handheld gadgets could change the world—if they only existed. But according to the $2.5 million winner of a contest to build a tricorder prototype, we can actually do these 1960s sci-fi gizmos one better.
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Written by Reuben Westmaas May 3, 2017
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