Aeronautical engineers have a billion dollar problem, and researchers are using paint to help solve it. The problem has to do with gasoline-powered turbine engines, the engines jet airplanes use to get off the ground and power plants use to light up most cities. The hotter these engines run, the more efficiendy they operate. But for them to approach peak efficiency, they need to run so hot that the metal used to build them melts. That's a lot of heat, and it's a Catch-22 that has vexed aeronautical engineers for decades.
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