February 14, 2017
Understand Solar
| Global | renewables: solar
A trip in time to see the sun in action: from the first solar access laws (500s), solar collector (1767), discovery of the photovoltaic effect by Edmund Becquerel (1839), photoconductivity of selenium by Willoughby Smith (1873), and Charles Fritts's first solar cell at 1% efficiency (1883) to the modern solar cell of Bell Labs (1954) and beyond.