March 7, 2020

Bobby McFerrin: Circlesongs

1,082 Posts to “March 7, 2020”

  1. Harrytinox says:

    Most plane crashes are ‘survivable’
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    First, the good news. “The vast majority of aircraft accidents are survivable, and the majority of people in accidents survive,” says Galea. Since 1988, aircraft — and the seats inside them — must be built to withstand an impact of up to 16G, or g-force up to 16 times the force of gravity. That means, he says, that in most incidents, “it’s possible to survive the trauma of the impact of the crash.”

    For instance, he classes the initial Jeju Air incident as survivable — an assumed bird strike, engine loss and belly landing on the runway, without functioning landing gear. “Had it not smashed into the concrete reinforced obstacle at the end of the runway, it’s quite possible the majority, if not everyone, could have survived,” he says.

    The Azerbaijan Airlines crash, on the other hand, he classes as a non-survivable accident, and calls it a “miracle” that anyone made it out alive.
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    Most aircraft involved in accidents, however, are not — as suspicion is growing over the Azerbaijan crash — shot out of the sky.

    And with modern planes built to withstand impacts and slow the spread of fire, Galea puts the chances of surviving a “survivable” accident at at least 90%.

    Instead, he says, what makes the difference between life and death in most modern accidents is how fast passengers can evacuate.

    Aircraft today must show that they can be evacuated in 90 seconds in order to gain certification. But a theoretical evacuation — practiced with volunteers at the manufacturers’ premises — is very different from the reality of a panicked public onboard a jet that has just crash-landed.
    Galea, an evacuation expert, has conducted research for the UK’s Civil Aviation Authority (CAA) looking at the most “survivable” seats on a plane. His landmark research, conducted over several years in the early 2000s, looked at how passengers and crew behaved during a post-crash evacuation, rather than looking at the crashes themselves. By compiling data from 1,917 passengers and 155 crew involved in 105 accidents from 1977 to 1999, his team created a database of human behavior around plane crashes.

    His analysis of which exits passengers actually used “shattered many myths about aircraft evacuation,” he says. “Prior to my study, it was believed that passengers tend to use their boarding exit because it was the most familiar, and that passengers tend to go forward. My analysis of the data demonstrated that none of these myths were supported by the evidence.”

  2. Bryanuribe says:

    New Glenn’s first flight
    Blue Origin formally announced the development of New Glenn — which aims to outpower SpaceX’s Falcon 9 rockets and haul spacecraft up to 45 metric tons (99,200 pounds) to orbit — in 2016.
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    The vehicle is long overdue, as the company previously targeted 2020 for its first launch.

    Delays, however, are common in the aerospace industry. And the debut flight of a new vehicle is almost always significantly behind schedule.

    Rocket companies also typically take a conservative approach to the first liftoff, launching dummy payloads such as hunks of metal or, as was the case with SpaceX’s Falcon Heavy debut in 2018, an old cherry red sports car.
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    Blue Origin has also branded itself as a company that aims to take a slow, diligent approach to rocket development that doesn’t “cut any corners,” according to Bezos, who founded Blue Origin and funds the company.

    The company’s mascot is a tortoise, paying homage to “The Tortoise and the Hare” fable that made the “slow and steady wins the race” mantra a childhood staple.

    “We believe slow is smooth and smooth is fast,” Bezos said in 2016. Those comments could be seen as an attempt to position Blue Origin as the anti-SpaceX, which is known to embrace speed and trial-and-error over slow, meticulous development processes.
    But SpaceX has certainly won the race to orbit. The company’s first orbital rocket, the Falcon 1, made a successful launch in September 2008. The company has deployed hundreds of missions to orbit since then.

    And while SpaceX routinely destroys rockets during test flights as it begins developing a new rocket, the company has a solid track record for operational missions. SpaceX’s Falcon 9 rocket, for example, has experienced two in-flight failures and one launchpad explosion but no catastrophic events during human missions.

  3. RogerWhart says:

    What New Glenn will do In some ways New Glenn has already made its mark on the launch industry. Blue Origin has for years pitched the rocket to compete with both SpaceX and United Launch Alliance — a joint venture of Boeing and Lockheed Martin that buys engines from Blue Origin — for lucrative military launch contracts. омг ссылка The US Space Force selected Blue Origin ULA and SpaceX in June to compete for 5.6 billion worth of Pentagon contracts for national security missions slated to launch over the next four years. Blue Origin also has deals with several commercial companies to launch satellites. The contracts include plans to help deploy Amazon’s Kuiper internet satellites and a recently inked deal with AST SpaceMobile to help launch the Midland Texas-based company’s space-based cellular broadband network. New Glenn could also be instrumental in building Blue Origin’s planned space station called Orbital Reef. Blue Origin and it commercial partners including Sierra Space and Boeing among others hope the station will one day provide a new destination for astronauts as the International Space Station is phased out of service. https://omgprice10.com площадка оmg darkmarket New Glenn vs. other powerful rockets New Glenn packs significant power. Dubbed a “heavy-lift” vehicle its capabilities lie between SpaceX’s Falcon 9 rocket and the more powerful Falcon Heavy launch vehicle. SpaceX’s workhorse Falcon 9 for example can haul up to 22.8 metric tons 50265 pounds to space. While New Glenn is capable of carrying about double that mass it may also be roughly the same price as a Falcon 9: reportedly around 60 million to 70 million per launch. “I think in order to compete with Falcon 9 you have to go head-to-head or better on price” said Caleb Henry the director of research at Quilty Space which provides data and analysis about the space sector. The question however is whether Blue Origin will be able to sustain a competitive price point Henry added. Still one feature that makes New Glenn stand out is its large payload fairing or nose cone. The component protects the cargo bay and is a whopping 23 feet 7 meters wide — nearly 6 feet 2 meters larger than that of SpaceX’s Falcon 9 or Falcon Heavy. Henry said Blue Origin likely opted to outfit New Glenn with such a large fairing in order to help fulfill Bezos’ vision of the future.

  4. Jeremyengiz says:

    What’s on board this flight Blue Origin had planned to launch a pair of Mars-bound satellites on behalf of NASA for the first flight of New Glenn. But delays with the rocket’s development prompted the space agency to change course moving that flight to this spring at the earliest. So for this inaugural flight Blue Origin opted to instead fly a “demonstrator” that will test technology needed for the company’s proposed Blue Ring spacecraft — which will aim to serve as a sort of in-space rideshare vehicle dragging satellites deeper into space when needed. омг ссылка The demonstrator on this New Glenn flight will remain aboard the rocket for the entire six-hour flight Blue Origin said and it will validate “communications capabilities from orbit to ground” as well as “test its in-space telemetry tracking and command hardware and ground-based radiometric tracking.” The Blue Ring Pathfinder demonstrator is part of a deal Blue Origin inked with the US Department of Defense’s Defense Innovation Unit. https://omgprice10.com omgomg Why Blue Origin wants to reuse rockets Similar to SpaceX Blue Origin is aiming to recover and refly its first-stage rocket boosters in a bid to make launches less expensive. “Reusability is integral to radically reducing cost-per-launch” the company said in a recent news release using the same oft-repeated sentiment that SpaceX has touted since it began landing rocket boosters in 2015. Bezos however has acknowledged the importance of reusing rocket parts since he founded the company in 2000 — two years before Musk established SpaceX. And the company has already developed its suborbital New Shepard tourism rocket to be reusable. “It’s not a copy cat game” Henry said. “Blue Origin has been pursuing reusable vehicles since before reusable vehicles were cool. Now it’s much more of a mainstream idea because of SpaceX. The difference is that it’s taken Blue Origin so much longer to get to orbit.” If successful returning the New Glenn rocket booster for a safe landing will be a stunning feat. After expending most of its fuel to propel the rocket’s upper stage to space the first-stage booster will need to make a clean separation. The booster must then maneuver with pinpoint guidance and reignite its engines with precision timing to avoid crashing into the ocean or the Jacklyn recovery platform.

  5. GlennCrift says:

    On a long-dormant pad in Florida a rocket that could challenge SpaceX’s dominance is poised to launch kra24 cc On a Florida launchpad that has been dormant for almost two decades a new roughly 320-foot 98-meter rocket — developed by Jeff Bezos’ company Blue Origin — is poised for its maiden flight. The uncrewed launch vehicle called New Glenn will mark Blue Origin’s first attempt to send a rocket to orbit a feat necessary if the company hopes to chip away at SpaceX’s long-held dominance in the industry. New Glenn is set to lift off from Cape Canaveral Space Force Station as early as next week. https://kra23s.cc kraken зеркало The rocket which stands about as tall as a 30-story building consists of several parts: The first-stage rocket booster gives the initial thrust at liftoff. Atop the booster is an upper rocket stage that includes a cargo bay protected by a nose cone that will house experimental technology for this mission. And in an attempt to replicate the success that SpaceX has found reusing rocket boosters over the past decade Blue Origin will also aim to guide New Glenn’s first-stage rocket booster back to a safe landing on a seafaring platform — named Jacklyn for Bezos’ mother — minutes after takeoff. Like SpaceX Blue Origin will seek to recover refurbish and reuse first-stage rocket boosters to drive down costs. For this inaugural mission a smooth flight is not guaranteed. But the eventual success of New Glenn named after storied NASA astronaut John Glenn is instrumental to some of Blue Origin’s most ambitious goals. The rocket could one day power national security launches haul Amazon internet satellites to space and even help in the construction of a space station that Blue Origin is developing with commercial partners.

  6. Jerrylib says:

    Chile’s President Boric leads journey to South Pole in historic trip kraken onion Chile’s President Gabriel Boric travelled to Antarctica’s South Pole on Friday a place where no other Latin American president has set foot according to the Chilean government. Boric led the historic two-day trip named Operation Pole Star III to extend the environmental monitoring of pollutants on Antarctica Chile’s government said in a statement. He travelled with scientists armed forces commanders and government ministers from the Chilean capital of Santiago to Punta Arenas a city in southern Chile public broadcaster Television Nacional de Chile TVN reported. From there they made several stops before finally reaching the US-run Amundsen-Scott South Pole Station according to TVN. https://kra23s.cc Площадка кракен Chile is one of seven countries that has a territorial claim in Antarctica alongside Argentina Australia France New Zealand Norway and the United Kingdom. It is also a signatory of the Antarctic Treaty which dictates that the continent may only be used for peaceful and scientific purposes. While Chile has historically carried out scientific activity in Antarctica’s northern sector the country’s government is now hoping to expand research into the west of the continent its statement said. Boric called his trip to the South Pole an “honor” and a source of pride TVN reported. “This is a milestone for us. It is the first time a Chilean and Latin American President has visited the South Pole” he said according to TVN.

  7. Dannynon says:

    A year ago today things went from bad to worse for Boeing Площадка кракен At 5 p.m. PT on January 5 2024 Boeing seemed like a company on the upswing. It didn’t last. Minutes later a near-tragedy set off a full year of problems. As Alaska Airlines flight 1282 climbed to 16000 feet in its departure from Portland Oregon a door plug blew out near the rear of the plane leaving a gaping hole in the fuselage. Phones and clothing were ripped away from passengers and sent hurtling into the night sky. Oxygen masks dropped and the rush of air twisted seats next to the hole toward the opening. https://kra23c.cc kraken shop Fortunately those were among the few empty seats on the flight and the crew got the plane on the ground without any serious injuries. The incident could have been far worse — even a fatal crash. Not much has gone right for Boeing ever since. The company has had one misstep after another ranging from embarrassing to horrifying. And many of the problems are poised to extend into 2025 and perhaps beyond. The problems were capped by another Boeing crash in South Korea that killed 179 people on December 29 in what was in the year’s worst aviation disaster. The cause of the crash of a 15-year old Boeing jet flown by Korean discount carrier Jeju Air is still under investigation and it is quite possible that Boeing will not be found liable for anything that led to the tragedy. But unlike the Jeju crash most of the problems of the last 12 months have clearly been Boeing’s fault. And 2024 was the sixth straight year of serious problems for the once proud now embattled company starting with the 20-month grounding of its best selling plane the 737 Max following two fatal crashes in late 2018 and early 2019 which killed 346 people. Still the outlook for 2024 right before the Alaska Air incident had been somewhat promising. The company had just achieved the best sales month in its history in December 2023 capping its strongest sales year since 2018. It was believed to be on the verge of getting Federal Aviation Administration approval for two new models the 737 Max 7 and Max 10 with airline customers eager to take delivery. Approvals and deliveries of its next generation widebody the 777X were believed to be close behind. Its production rate had been climbing and there were hopes that it could be on the verge of returning to profitability for the first time since 2018.

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