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"Scientists in Switzerland have developed a Battery made out of Paper which will release its charge when splattered with water"
https://www.theregister.com/2022/07/29/paper_batteries_on_the_cards/
"Scientists in Switzerland have developed a Battery made out of Paper which will release its charge when splattered with water"
https://www.theregister.com/2022/07/29/paper_batteries_on_the_cards/