Historical Medallion🎖️ on Instagram: "In 1942, a helicopter of the Third Reich's Air Force and Navy capable of taking off from a ship's deck seemed like science fiction. But the Fl 282 "Kolibri" (Hummingbird) was exactly that. It was not just an experimental prototype, but the world's first series-production rotary-wing aircraft to enter limited operational service . Its engineering concept was so successful that it influenced helicopter design for decades to come. · Revolutionary Design. Inste

Alchetron.com on Instagram: "A man just made medical history: surviving over 100 days with a revolutionary titanium artificial heart—no biological heart at all. At St. Vincent’s Hospital in Sydney, surgeons implanted the BiVACOR Total Artificial Heart into a patient with severe end-stage heart failure. This groundbreaking device—a fist-sized titanium pump with just one magnetically levitated spinning rotor—replaces both ventricles entirely. No valves, no mechanical bearings, no traditional heart