[slashdot.org] Dutch Scientist Proposes Circular Runways For Airport Efficiency
An anonymous reader quotes a report from Fast Company: While airport terminal architecture has a solid history of style and innovation, rarely is a proposal put forth to utterly redesign the runway. But that's precisely the aim of Henk Hesselink, a Dutch scientist working with the Netherlands Aerospace Center. Dubbed the "endless runway," Hesselink's brainchild is a 360-degree landing strip measuring more than two miles in diameter. Since airplanes would be able to approach and take off from any direction around the proposed circle, they wouldn't have to fight against crosswinds. And three planes would be able to take off or land at the same time. Hesselink's team uses flight simulators and computerized calculations to test the unconventional design, and have determined that round airports would be more efficient than existing layouts. With a central terminal, the airport would only use about a third of the land of the typical airport with the same airplane capacity. And there's an added benefit to those living near airports: Flight paths could be more distributed, and thereby making plane noise more tolerable. BBC produced a video detailing Hesselink's circular runway concept. The concept is fascinating but there are many questions the video does not answer. Phil Derner Jr. from NYC Aviation writes via Business Insider about some of those unanswered questions in his article titled "Why the circular runway concept wouldn't work." The fundamental issues discussed in his report include banked runway issues, curved runway issues, navigation issues, and airspace issues. What do you think of Hesselink's concept? Do you think it is preposterous or shows promise?

Read more of this story at Slashdot.

[slashdot.org] GameStop To Close At Least 150 Stores Due To Poor Q4 Sales
GameStop announced last week that it will be closing more than 150 of its stores globally due to "weak sales of certain AAA titles and aggressive console promotions by other retailers." The chain also mentioned it "anticipates that it will close between two percent to three percent of its global store footprint" in 2017. Nintendo Wire reports: The Q4 window is often the high point of video game sales, yet despite the launch of new hardware in the PlayStation 4 Pro and a few major releases, it wasn't enough in the company's eyes. Despite this, GameStop still plans on opening 100 stores in 2017 which will likely focus more on non-gaming business, such as the Spring Mobile brand and vinyl collectibles. GameStop CEO Paul Raines said in a statement: "The video game category was weak, particularly in the back half of 2016, as the console cycle ages. Looking at 2017, Technology Brands and Collectibles are expected to generate another year of strong growth, and new hardware innovation in the video game category looks promising." You can view GameStop's 2016 earnings report here.

Read more of this story at Slashdot.

[slashdot.org] NASA Spends 72 Cents of Every SLS Dollar On Overhead Costs, Says Report
A new report published by the nonpartisan think tank Center for a New American Security shows us where a lot of NASA's money is being spent. The space agency has reportedly spent $19 billion on rockets -- first on Ares I and V, and now on the Space Launch System rocket -- and $13.9 billion on the Orion spacecraft. If all goes according to plan and NASA is able to fly its first crewed mission with the new vehicles in 2021, "the report estimates the agency will have spent $43 billion before that first flight, essentially a reprise of the Apollo 8 mission around the Moon," reports Ars Technica. "Just the development effort for SLS and Orion, which includes none of the expenses related to in-space activities or landing anywhere, are already nearly half that of the Apollo program." From the report: The new report argues that, given these high costs, NASA should turn over the construction of rockets and spacecraft to the private sector. It buttresses this argument with a remarkable claim about the "overhead" costs associated with the NASA-led programs. These costs entail the administration, management, and development costs paid directly to the space agency -- rather than funds spend on contractors actually building the space hardware. For Orion, according to the report, approximately 56 percent of the program's cost, has gone to NASA instead of the main contractor, Lockheed Martin, and others. For the SLS rocket and its predecessors, the estimated fraction of NASA-related costs is higher -- 72 percent. This means that only about $7 billion of the rocket's $19 billion has gone to the private sector companies, Boeing, Orbital ATK, Aeroject Rocketdyne, and others cutting metal. By comparison the report also estimates NASA's overhead costs for the commercial cargo and crew programs, in which SpaceX, Boeing, and Orbital ATK are developing and providing cargo and astronaut delivery systems for the International Space Station. With these programs, NASA has ceded some control to the private companies, allowing them to retain ownership of the vehicles and design them with other customers in mind as well. With such fixed-price contracts, the NASA overhead costs for these programs is just 14 percent, the report finds.

Read more of this story at Slashdot.

[linuxtoday.com] Solus Operating System Offers Bulletproof Update Experience and Boot Management

 The  clr-boot-manager promises a bulletproof boot management and update experience.

[slashdot.org] Climate Change Is Altering Global Air Currents
An anonymous reader quotes a report from The Independent: One of the scientists who demonstrated conclusively that global warming was an unnatural event with the famous "hockey stick" graph is now warning that giant jetstreams which circle the planet are being altered by climate change. Jetstreams are influenced by the difference in temperatures between the Arctic and the equator. But the Arctic has been warming much faster than tropical climates -- the island of Svalbard, for example was 6.5 degrees celsius warmer last year compared to the average between 1961 and 1990. The land has also been warming faster than the sea. Both of those factors were changing the flow of these major air currents to create "extreme meanders" which were helping to cause "extreme weather events", Professor Michael Mann said. In a paper in the journal Scientific Reports, Professor Mann and other researchers wrote that evidence of the effect of climate change on the jetstreams had "only recently emerged from the background noise of natural variability." They said that projections of the effect on the jetstreams in "state-of-the-art" climate models were "mirrored" in "multiple" actual temperature measurements. The jetstream normally flows reasonably consistently around the planet, but can develop loops extending north and south. The researchers, who studied temperature records going back to 1870 as well as satellite data, said these loops could grow "very large" or even "grind to a halt" rather than moving from west to east. The effect has been most pronounced during the past 40 years, they found.

Read more of this story at Slashdot.