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News
Scientists creates material that changes color invisibly to fight fakes
5+ day, 15+ hour ago (523+ words) Davyne’s near-infrared response can be switched on and off, allowing security markings to appear for inspection and then become invisible again. Researchers in Finland have created a mineral-based material that hides security markings from view but reveals them under infrared…...
How Does This Drone Change Shape Mid-Air?
4+ week, 16+ hour ago (154+ words) Interesting Engineering How Does This Drone Change Shape Mid-Air? The PteroDynamics X-P4 Transwing combines helicopter-like vertical takeoff with airplane-style flight, using folding wings to operate autonomously from ships without requiring conventional runways or pilots. The PteroDynamics Transwing is a radically different…...