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Category: transportation – Page 499
SUPERSONIC FLIGHT’S ROCKY PAST
We are one step closer to an affordable reboot of supersonic flight. Japan Airlines (JAL) has invested $10 million in the Denver-based aerospace company, Boom Supersonic, that’s planning to resurrect the method of travel. In exchange for their funding, JAL will be able to pre-order 20 of the new aircraft. The airline’s president, Yoshiharu Ueki, said in a press release from December 5: “Through this partnership, we hope to contribute to the future of supersonic flight with the intent of providing more time to our valued passengers while emphasizing flight safety.”
It’s been 14 years since British Airways and Air France grounded their Concorde fleets, and commercial air travel hasn’t hit supersonic speeds since. Fourteen of these planes ferried first-class passengers from New York to London at speeds of 1,353 mph (2177.44 kph) — twice as fast as the speed of sound — making the jaunt across the pond in only 3.5 hours. That’s about half the time it takes a normal passenger plane to cross the Atlantic Ocean.
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It’s a new year and we have exciting updates to share on our progress at Vahana over the past few months. We all knew that designing and building this revolutionary vehicle would take time, ingenuity, and the perfect combination of patience and hustle from all parties involved. In addition to our brilliant team, we’re lucky to have incredibly reliable partners and the extended Airbus family, which has played a great role in getting Vahana to a crucial project milestone: flight tests.
In less than two years, Vahana has gone from a sketch on a napkin to a full size vehicle about to undertake its first round of flight testing. In the pursuit of vehicle and personal safety, we decided to slightly delay our original goal of having Vahana accomplish its first flight in 2017. By the last quarter of 2017, the team initiated ground testing, which included powering up all motors, and we’re excited to announce that all ground test points have been completed. We’re targeting this quarter (Q1 2018) for Vahana to take to the sky at the UAS flight range in Pendleton, OR.
We’re grateful to all our partners for their understanding that the success of our project is tethered to working within unrealistic timescales. Yet amongst all of our goals we are fiercely realistic when it comes to pursuing the developing air vehicles that will be safe, reliable, and certified for human flight. We’d rather experience a minor delay now than unduly compromise our long-term development plan.
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““Every Uber driver, as far as I can see, gets a benefit,” said Edward Kleinbard, a USC professor and former chief of staff to Congress’ Joint Committee on Taxation.”
India and Japan have vowed to strengthen their strategic ties by increasing cooperation in the defense, robotics and AI sectors in coming years in response to Chinese regional ambitions and North Korea’s nuclear plans.
“You should expect to see increased bilateral cooperation between us to develop unmanned ground vehicles (UGV) and robotics,”Japanese State Minister for Foreign Affairs Kentaro Sonoura told the Times of India. The move follows the successful ratification of the Indo-Japanese civil nuclear agreement by Japan’s parliament in late 2017.
The two countries are launching a working group on cooperation between nuclear companies. “Japan’s intention is to start this quickly, possibly by the end of this month,” Sonoura said.
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Acoustic tractor beams use the power of sound to hold particles in mid-air, and unlike magnetic levitation, they can grab most solids or liquids. For the first time University of Bristol engineers have shown it is possible to stably trap objects larger than the wavelength of sound in an acoustic tractor beam. This discovery opens the door to the manipulation of drug capsules or micro-surgical implements within the body. Container-less transportation of delicate larger samples is now also a possibility and could lead to levitating humans.
Researchers previously thought that acoustic tractor beams were fundamentally limited to levitating small objects as all the previous attempts to trap particles larger than the wavelength had been unstable, with objects spinning uncontrollably. This is because rotating sound field transfers some of its spinning motion to the objects causing them to orbit faster and faster until they are ejected.
The new approach, published in Physical Review Letters today, uses rapidly fluctuating acoustic vortices, which are similar to tornadoes of sound, made of a twister-like structure with loud sound surrounding a silent core.
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Microsoft today is unveiling new artificial intelligence technology that’s something of an artist – a “drawing bot.” The bot is capable of creating images from text descriptions of an object, but it also adds details to those images that weren’t included the text, indicating that the AI has a little imagination of its own, says Microsoft.
“If you go to Bing and you search for a bird, you get a bird picture. But here, the pictures are created by the computer, pixel by pixel, from scratch,” explained Xiaodong He, a principal researcher and research manager in the Deep Learning Technology Center at Microsoft’s research lab in Redmond, Washington, in Microsoft’s announcement. “These birds may not exist in the real world — they are just an aspect of our computer’s imagination of birds.”
The bot is able to generate a variety of images, researchers say, including everything from “ordinary pastoral scenes,” like those with grazing livestock, to the absurd – like “a floating double-decker bus.”
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