Four years ago, we first heard about how Korean scientist had proposedusing sound to charge mobile phones. They explained that it could be done via a piezoelectric effect, in which zinc oxide nanowires converted sound-caused vibrations into electricity. At the ...
Four years ago, we first heard about how Korean scientist had proposedusing sound to charge mobile phones. They explained that it could be done via a piezoelectric effect, in which zinc oxide nanowires converted sound-caused vibrations into electricity. At the ...