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These 3D-printed objects don’t need batteries to connect to Wi-Fi

One of the big tradeoffs that comes with the convenience of having smart devices run your home is the hassle of keeping them powered, either with batteries or by plugging them into the wall. But a new project devised by researchers at the University of Washington could one day help guide the creation of gadgets that don’t require any power at all to stay online. Vikram Iyer, Justin Chan, and Shyamnath Gollakota from UW figured out a way to 3D-print plastic objects with wireless capabilities baked right in – no power source or electronics necessary.
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