Future Tech Just for Fun

Urine-powered socks can send message in emergency

Scientists have invented a pair of high-tech socks which, when filled with urine, and activated by the wearer’s footsteps, produce enough power to send a message. So when nature calls, so will the socks.

Source: Wee-fi: urine-powered socks can send message in emergency – Telegraph

Could we call this a P cell? The concept is ingenious yet I imagine it will have  a hard time catching on.

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