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Energy Harvesting for Wearable Technology Steps Up

Cars That Think

Energy is something we take for granted, because we just plug things into the wall, and it feels as inevitable as air. Using built-in fuel cells, the device absorbed the lactate in the sweat and combined it with atmospheric oxygen to generate water and pyruvate. In the future, DIY may not even be necessary.

Energy 125
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Security With a Spectrometer

Cars That Think

If the spectrum matched that of a previously registered object, the Teensy would then automatically “type” my password, granting access to the computer. And what if I were to measure my skin after too much sun exposure, drinking a lot of water , or other conditions that could alter it’s signature?

IDEA 109