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3,530°F, Mach 3.3, 1 Secret Alloy: How the Blackbird Survived the Heat of Speed
Flying faster than a rifle bullet, the SR-71 faced skin temperatures above 3,500°F. Engineers created a titanium alloy coated ...
The number of incidents at prisons involving drones in England and Wales skyrocketed by over 770 per cent between 2019 and ...
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