Četrtek, 17 November 2016 07:36 Written by
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Medicina in farmacija

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Medicina in farmacija
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  • SamuelObecy
    SamuelObecy Torek, 15 Oktober 2024 09:59

    Automatic takeoffs are coming for passenger jets and they’re going to redraw the map of the sky
    kra8.cc

    In late 1965, at what’s now London Heathrow airport, a commercial flight coming from Paris made history by being the first to land automatically.

    The plane – A Trident 1C operated by BEA, which would later become British Airways – was equipped with a newly developed extension of the autopilot (a system to help guide the plane’s path without manual control) known as “autoland.”

    Today, automatic landing systems are installed on most commercial aircraft and improve the safety of landings in difficult weather or poor visibility.

    Now, nearly 60 years later, the world’s third largest aircraft manufacturer, Brazil’s Embraer, is introducing a similar technology, but for takeoffs.

    Called “E2 Enhanced Take Off System,” after the family of aircraft it’s designed for, the technology would not only improve safety by reducing pilot workload, but it would also improve range and takeoff weight, allowing the planes that use it to travel farther, according to Embraer.

    “The system is better than the pilots,” says Patrice London, principal performance engineer at Embraer, who has worked on the project for over a decade. ”That’s because it performs in the same way all the time. If you do 1,000 takeoffs, you will get 1,000 of exactly the same takeoff.”

    Embraer, London adds, has already started flight testing, with the aim to get it approved by aviation authorities in 2025, before introducing it from select airports.

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    Immobilien Makler Torek, 15 Oktober 2024 09:58

    fantastic post, very informative. I wonder why the other experts of this sector do not notice this. You must continue your writing. I am confident, you have a huge readers' base already!

  • Stevefeeks
    Stevefeeks Torek, 15 Oktober 2024 09:56

    A severe geomagnetic storm could cause colorful auroras over Northern California and Alabama
    раз анальный секс
    Colorful auroras could be visible in areas of the United States such as Alabama and Northern California — much farther south than they typically appear — on Thursday evening due to a powerful solar flare and coronal mass ejection released from the sun, according to the National Weather Service’s Space Weather Prediction Center.

    The severe solar storm, classified as a level 4 on a scale from 1 to 5, also could disrupt communications, the power grid and satellite operations, according to officials at the center.

    The storm is expected to reach Earth between early morning and 12 p.m. ET Thursday, with the potential to last through Friday.

    The intensity and full characteristics of the storm, moving toward Earth at more than 2.5 million miles per hour (about 4 million kilometers per hour), won’t be known until it reaches the Deep Space Climate Observatory and the Advanced Composition Explorer satellites orbiting 1 million miles from Earth.

    The satellites will measure the speed and magnetic intensity of the storm, which is expected to arrive at Earth 15 to 30 minutes after reaching the space observatories, said Shawn Dahl, service coordinator for the Space Weather Prediction Center, at a news briefing Wednesday.

    A series of the most intense type of solar flares, known as X-class flares, have released from the sun this week. The flares also coincided with coronal mass ejections on Tuesday.

    Coronal mass ejections are large clouds of ionized gas called plasma and magnetic fields that erupt from the sun’s outer atmosphere. When these outbursts are directed at Earth, they can cause geomagnetic storms, or major disturbances of Earth’s magnetic field.

    “Geomagnetic storms can impact infrastructure in near-Earth orbit and on Earth’s surface,” according to the Space Weather Prediction Center.

    As a result, the center has notified the Federal Emergency Management Agency, the North American power grid and satellite operators to prepare for disruptions, especially given the amount of preparations and expected relief efforts for Hurricane Milton, Dahl said.

    Historically, G4 storms are common during a solar cycle, but G5, or extreme geomagnetic storms such the one that occurred on May 10, are incredibly rare, Dahl said. This new storm has a 25% chance of becoming a G5, he said.

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    JasonPah Torek, 15 Oktober 2024 09:50

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