@Annyiqbal 7 June 2021 more from that month

Wodden floors will generate electricity in future. Scientists are working how to generate electricity from wodden floors. Wood is bad conductor of electricity but electricity will be produced by new technology. Piezoelectricity is basically an electric charge which is produced in solid materials. When mechanical stres will applied on wood Piezoelectricity will be produced. Such a low cost and useful method to generate electricity. If floors of shopping center will replaced by wood electricity will be generated. Mechanical stress is the cause to activate Piezoelectric sensors to generate electricity. Source https://www.universal-sci.com/article/generating-electricity-utilizing-wooden-floor Image Source ACS Nano / Empa via EurekAlert/AAAS #NoiseCash