NASA is testing a glowing paint that makes airplanes invisible to radar
NASA researchers utilize a specialized pressure-sensitive paint that glows under blue light to visualize how air flows over aircraft surfaces during high-speed wind tunnel testing.
NASA engineers use a remarkable scientific tool called pressure-sensitive paint to improve aircraft efficiency. This specialized coating contains molecules that fluoresce under blue light, with the intensity of the glow changing based on local air pressure. By photographing these shifts in brightness, researchers can see exactly where drag occurs on a plane's body in real time.
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