Solar power reaches the earth in two different ways-by heat and by light. Solar cells and other sources collect this heat to produce electricity, but it is often overlooked that the sun’s light can be very useful as well. For much of our country’s history, Americans depended on the sun for lighting our homes and […]

If you’ve ever used a small solar-powered calculator in grade school, you have a little understanding about how solar cells, also called photovoltaics, work. You probably played with your calculator at this young age, watching the numbers on the screen disappear as you covered with your thumb the small gray squares on the face of […]