A new device can produce electricity using shadows
It exploits the contrast between light and dark to produce a current to power a small gadget
![illustration of a small, banded device in partial light and shadows](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/08/081420_cw_shadow-energy_feat_rev..jpg?fit=1028%2C579&ssl=1)
Shadow-effect energy generators, like the one illustrated here, could someday be used to produce power from the difference between bright spots and shady areas. The greater the contrast between light and dark, the more energy such generators provide.
Royal Society of Chemistry