The Secret Engine Technology That Made The SR-71 The Fastest Plane Ever On December 17, 1903, the Wright brothers flew the first aeroplane ever at 6.8 mph (10.9 km/h). Only 61 years and five days later, the Lockheed SR-71 Blackbird took off. It’s still the world’s fastest aeroplane with a speed of 2,193 mph (3,530 km/h.) This fascinating video reveals how its top secret engine technology works. Please enable JavaScript to watch this video. A ground test of the Pratt & Whitney J58 engine’s afterburner at full power. It’s truly amazing that only 61 years and five days separate this from this: And it’s even more unbelievable that we haven’t been able to top that 51 years later (it will be exactly 51 years tomorrow — the first flight occurred on December 22, 1963.)
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The Truly Spectacular Process Of How The Best Chef's Knife In The World Is Made Made of stacked melted meteorite that looks more like Thor’s hammer and armed with the encyclopaedic knowledge of knives and stunning skill from bladesmith Bob Kramer, these chef Kramer knives are among the finest in the world. This video of him, by Anthony Bourdain’s Raw Craft, features his process and it might be the most impressive knife making video I’ve ever seen. And I’ve seen a lot! Kramer is one of only 122 certified master bladesmiths in the US and the only one who specialises in kitchen knives.
Snecma Tests Open Rotor Engine Snecma, the French engine manufacturer of the Safran group is working on an ‘open rotor’ engine that promises to cut fuel consumption and CO2 emission levels, and reduce acoustic signature powering the passenger airplanes in the 2030s. The goal of the current research is to test a jet engine that consumes 30% less fuel than today’s powerplants. This new type of engine comprises two distinct parts: a conventional gas generator, and a turbine driving two counter-rotating, unducted fans that will propel the aircraft. “An aircraft engine’s efficiency and consumption depend on the amount of air the fans draw and eject at slow speeds,” Snecma (Safran) Research & Technology Director Pierre Guillaume points out. “With the open rotor, we will be able to considerably increase that drawn air flow because we won’t have any ducting around the fans. And that will improve consumption and cut CO2 emissions.” There are still a number of challenges to tackle, starting with noise.
Warp drive looks more promising than ever in recent NASA studies Super cool. Can't wait for the results! James Davis 3rd October, 2012 @ 8:31 a.m. ors who are now married because you didn't know how to break up with your significant other, how is that going for you? : AskReddit what GIF leaves you dying with laughter? : AskReddit
Inside the aid bag of a U.S. Army combat medic Greenland Is Building The Perfect Place To Watch The World End A stunning structure built 241km inside the Arctic Circle will serve as a crucial research centre for glaciologists. But perhaps more importantly, it will be a place where humans can travel to see the real-time impact of climate change.Images: Dorte Mandrup The Illulissat Icefjord is a UNESCO-protected site on Greenland’s west coast that’s known for both its stunning natural features and its long history of human habitation. Illulissat is one of the few spots where Greenland’s continental ice sheet calves into the sea, allowing scientists rare access to glacial ice that’s over 250,000 years old. This is why it’s known as climate change “ground zero”. People have been coming here to study the famously fast-moving Sermeq Kujalleq glacier for 250 years. The Icefjord Centre will provide a permanent outpost for this scientific work as well as an interpretive centre to help visitors understand it. The Icefjord Centre is planned to open in 2020, but will Greenland even have any ice then?