Wearable gadgets are limited to smartwatches and fitness bands nowadays, but there are far more exciting concepts in the pipeline. Researchers from North Carolina State University have demonstrated an ultrathin breathable smart armband, that was able to control a game of Tetris.The team used a simple technique to create the prototype. Scientists first stretched a polymer to a thin film filled with nanoholes to make it breathable. The next step was to dip the material in a silver solution, and then researchers used heat to etch touch-sensitive electrodes in the armband. The final result ...
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