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Electric eel-inspired batteries could power life-long pacemakers

Electric eel-inspired batteries could power life-long pacemakers

19 February 2018

A new battery made of fleshy hydrogel layers generates and stores power like electric eels do. It could power pacemakers without ever needing to be replaced
Secure your secret messages with printable invisible ink

Secure your secret messages with printable invisible ink

31 October 2017

It may seem like a party trick, but invisible ink you can print could actually be useful in sending secret messages that are revealed by a special salt mixture

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