Engineers have developed a new way to produce electrical power that can charge handheld devices or sensors that monitor anything from pipelines to medical implants. The discovery sets a new world standard in triboelectric nanogenerators by producing a high-density DC current – a vast improvement over low-quality AC currents produced previously. The devices can transform mechanical energy such as wind or vibrations into electricity.
from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2017/12/171211140430.htm
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