In 1839, a French scientist by the name of Edmond Becquerel was experimenting with an electrochemical cell when he discovered something interesting.
When it was exposed to light, it produced an electrical current.
For over a hundred years, this was mostly a scientific curiosity. However, with the advent of the space age, this curiosity began to find practical uses.
Learn more about solar cells and solar power, its history, and how it works on this episode of Everything Everywhere Daily.