A 3.6-Ton Mirror Three Inches Thick Sits On A Maui Volcano Collecting Sunlight, And Keeping It From Cooking Itself Takes Seven Miles Of Coolant Pipe, Thirteen Separate Temperatures And About A Swimmin

Every kid who has ever owned a magnifying glass learns the same lesson in about four seconds. Point it at the sun, hold it over a dry leaf, and the leaf starts smoking. Nobody has to explain the physics. Now scale that lens up to 13.9 feet across and ...Read more