rcastro0 writes: What looks like a CPU's heat sink worn around the wrist apparently may be able to make you feel cool even while it is hot — or warm while it is cold. As Wired reports, this termoelectric device explores human physiology and how we perceive temperature to fool our body and make us comfortable. The device is called Wristify, and a prototype has been developed: Mashable has a video. Can this be the most efficient alternative to air conditioning ever?
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