英语时差：奥古斯特的太阳能技术（上）

One of the hottest technologies in solar energy today is concentrated solar power. CSP, as it’s called, involves using mirrors to concentrate sunlight on photovoltaic panels to make electricity. It’s also used to boil water and generate steam to run electric turbines. In many ways, CSP is on the cutting edge of new energy technology. But concentrated solar power is hardly a recent invention. In fact, it’s been around since the 1860s, when Abraham Lincoln was president and coal fired steam engines drove the Industrial Revolution. Industrialized countries were using so much coal that some thinkers worried that coal supplies would soon run out. One such worrier was Auguste Mouchot a French mathematician and solar energy enthusiast.