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    Home > Food News > Food Articles > How to fly over Mount Qomolangma

    How to fly over Mount Qomolangma

    • Last Update: 2021-03-16
    • Source: Internet
    • Author: User
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    the peri-tala migration from India to Mongolia each year, flying over the highest peaks of the Himalayas. When oxygen levels in thin air drop to 7 percent, the bird's metabolism drops, but its wings still flap as fast as ever, the researchers report in a recent paper published in eLife.
    has been a biological mystery for decades. In 1953, a climber found a spotted python above his head while climbing Mount Everest, Science reported. Scientists marveled at how the creature could rise to an altitude of 9,000 meters above Earth -- 2,000 meters higher than any other animal.
    scientists have long known that the hemoglobin of the speckled python is highly capable of binding to oxygen. A 2009 study also showed that the birds had more capillaries around their pectoral muscle cells than birds that did not fly to such heights. Many scientists have also studied birds that rest and walk on treadmills under normal and low-oxygen conditions, but have failed to explain how the birds respond to low oxygen levels in flight.
    To fill the gap, physiologist and NASA astronaut Jessica Meir and colleagues designed a unique experiment: Starting in 2010, the team domesticated 19 spotted pythons, from hatching chicks to training them to fly through a 30-yard wind tunnel, during which researchers gave them physiological sensors and oxygen masks. Masks simulate low, medium, and high altitude air conditions, and sensors record the heart rate, blood oxygen levels, body temperature, and metabolic rate of the plaque.
    in order to train the birds from birth, the team took advantage of the fact that the young birds had feelings with the first creature they saw, known as the "stamp." Twelve of the eggs were collected from Forest Heights Bird Park in North Carolina, USA, and they left a mark on Meir and spent a lot of time with her, snuging her and learning to fly outdoors and in wind tunnels.
    in the wind tunnel experiment, the researchers found that adult plaques slowed metabolism and heart rate under low oxygen conditions and somehow cooled the blood. In colder conditions, hemoglobin binds more closely to oxygen, which means that the blood of birds carries more oxygen and burns fewer calories. It is also reported that the speckles also use biometrics that change the flapping of the wings to adopt more effective flight strategies.
    ", before the Himalayas were so high, this migration of the beheadings continued for millions of years, and as the Himalayas grew taller, they flew higher and higher. Study co-author Julia York, a graduate student at the University of Texas at Austin, said. York, who has raised seven plaques, added: "They're amazing athletes.
    will lay the groundwork for future research in high-altitude physiology and may also benefit human medicine, as heart attacks, strokes and organ transplants can leave patients in low oxygen conditions, Meir said. Meir, who will soon fly higher than her python, will fly to the International Space Station on September 25. There, she will study how long space flights affect human physiology. (Source: Feng Weiwei, China Science Journal)
    relevant paper information:
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