Tuesday, December 5, 2017
Researchers 3D-print WiFi-connected objects that don’t need power
To do this, the team used things like 3D-printed springs, gears and switches that could be used to translate motion into antenna-transmitted information. For example, they created an anemometer, which measures wind speed, and attached it to a gear. When the gear spins, the teeth connect with an antenna embedded into the object and that antenna then reflects ambient WiFi signal, which can be 
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