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2021.02.24 ~ 2021.06.25
  • 杭州师范大学
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第3次开课

开始:2021-02-24

截止:2021-06-25

课程已进行至

18/18周

成绩预发布时间 2021-06-22

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Space walk

By 陈忆玮 老师 2021-06-11 1870次浏览

What are the possible dangers an astronaut might encounter when he is trying to acomplish a space mission?

70 回复

  • 温欣怡 2021-06-21

    The vacuum of space is a hostile enviroment. Lacking oxygen and filled with radiation, if a human being were to step outside of a spacecraft without protection, he or she would experience any number of terrible physical damages. The lack of air pressure would induce the blood and other liquids in the body to boil, which also cause the expansion of the body's tissues. Temperature would also be a factor, with the astronaut possibly freezing or burning depending upon his or her location in relation to the sun. In addition, he or she would be exposed to radiation, which in large amounts can cause damage to any matter——particularly living tissue.

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  • 温欣怡 2021-06-21

    The vacuum of space is a hostile environment. First, a human being without spacesuit will experience enormous pains because of terrible pyhysical dameges caused by lacking oxygen and filled with radiation. Second, the weightlessness of space forces astronauts to work in pair, tied to the soacecraft to aviod floating away. Besids, The lack of gravity blocks the blood circulate and causes the veins of neck and face swollen. Astronaurs may also suffer from headaches and dizziness, as well as many other mental illnesses.

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  • 董驰江 2021-06-21

     The lack of air pressure would induce the blood and other liquids in the body to boil, which also cause the expansion of the body's tissues. Temperature would also be a factor, with the astronaut possibly freezing or burning depending upon his or her location in relation to the sun. In addition, he or she would be exposed to radiation, which in large amounts can cause damage to any matter——particularly living tissue.Astronaurs may also suffer from nausea and dizziness.

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  • 张俊杰 2021-06-22

    Due to the lack of gravity, the danger of floating into space always exists. The liquid in the body is no longer affected by gravity. The pressure of the heart and blood vessels often pushes the blood to the body and heart of astronauts. This causes veins in the neck and face to protrude more than usual. Astronauts can also have headaches. Astronauts may also suffer from "space sickness" or "space adaptation syndrome" and other diseases.

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  • 卢志烨 2021-06-22

    A completely weightless environment would hamper astronauts' movement;There's a lot of space junk in the universe;There is a huge amount of nuclear radiation in space.

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  • 胡启亮 2021-06-22

    Because space is in a vacuum, there is no atmosphere to protect it, and the temperature varies greatly.The temperature of the sun can reach more than 100℃, there are a variety of radiation and micrometeoroids harmful to human body.At the same time, the human body inhales a certain amount of nitrogen, and if the astronaut bursts out of the capsule, an air plug can clog the blood vessels, leading to serious illness.

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  • 吕乐怡A39 2021-06-22

    The vacuum of space is a hostile environment,if a human being were to step outside of a spacecraft without protection, he or she would experience any number of terrible physical damages. The lack of air pressure would induce the blood and other liquids in body to boil, which would also cause the expansion of the body's tissues.Temperature would also be a factor, with the astronaut possibly freezing or burning depending upon his or her location in relation to the sun. In addition, he or she would be exposed to radiation, which can cause damage to any matter.

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  • 孙烨 2021-06-23

    The vacuum of space is a hostile environment,if a human being were to step outside of a spacecraft without protection, he or she would experience any number of terrible physical damages. The lack of air pressure would induce the blood and other liquids in body to boil, which would also cause the expansion of the body's tissues.Temperature would also be a factor, with the astronaut possibly freezing or burning depending upon his or her location in relation to the sun. In addition, he or she would be exposed to radiation, which can cause damage to any matter.

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  • 陈哲 2021-06-23

    With intense radiation in space, radiation can destroy the cells of the astronauts.
    There is no gravity in space, astronauts walk very difficult.
    The lack of oxygen makes the suit the astronauts have to wear thick
     

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  • 王文菊 2021-06-23

    The vacuum of space is a hostile environment,if a human being were to step outside of a spacecraft without protection, he or she would experience any number of terrible physical damages. The lack of air pressure would induce the blood and other liquids in body to boil, which would also cause the expansion of the body's tissues.Temperature would also be a factor, with the astronaut possibly freezing or burning depending upon his or her location in relation to the sun. In addition, he or she would be exposed to radiation, which can cause damage to any matter.

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  • 郭唯一 2021-06-23

    First and foremost,gravity does not exist in outer space so that astronauts will become weightless and float away without string.In addition,the vacuum of space is a hostile environment which lacked oxygen and was filled with harmful radiation.What's more,temperature is a challenge.Astronauts should wear specific suit to protect them from extreme temperatures and pressurization.

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  • A38范梦琪 2021-06-23

    The vaccum of space is a hostile environment. Lack of oxygen and willed with radiation , if a peoson being were to step outside of a spacecraft without protection, he or she would experience any number of terrible physical damages.The lack of pressure would induce the blood and other liquid in the body to boil. In addition the weightness of space create its own challenges and they may must face puffy face syndrome.

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  • 陆虹艳 2021-06-23

    In outer space gravity does not exist.There humans become weightless and can float away if not connected to something solid.In addition,space is almost a perfect vacuum,empty of the precious oxygen we need to survive.It's also full of harmful radiation which can severely damage human tissue.

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  • A39徐婧怡 2021-06-23

    The vacuum of space is a hostile environment. First, a human being without spacesuit will experience enormous pains because of terrible physical damages caused by lacking oxygen and filled with radiation. Second, the weightlessness of space forces astronauts to work in pair to avoid floating away. Besides, The lack of gravity blocks the blood circulate and causes the veins of neck and face swollen. 

     

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  • 王康 2021-06-23

      Becaues of lacking oxygen and filling with radiation,the person will experience number of terrible physical damages the pressure of the heart and blood vessels ofen pushes the blood to the astronaut’s body and heart.Becides,temperature would also be  a  factor,with the astonaut possibly freezing or burning depengding upon his location.

     

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  • 黄昕炜 2021-06-23

    Space rabbish may hit the spacecraft. In the outspace, oxygen dose not exist, so it could cause damaging problems. And because of the lack of gravity ,food may be unable to be swollen down smoothly and chock the  astronauts to death.

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  • A38竺欣 2021-06-23

    The vacuum of space is a hostile environment,if a human being were to step outside of a spacecraft without protection, he or she would experience any number of terrible physical damages. The lack of air pressure would induce the blood and other liquids in body to boil, which would also cause the expansion of the body's tissues.Temperature would also be a factor, with the astronaut possibly freezing or burning depending upon his or her location in relation to the sun. In addition, he or she would be exposed to radiation, which can cause damage to any matter.

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  • 徐思郁 2021-06-23

    There’s always the constant danger of floating away into space due to the lack of gravity . The vacuum of space is a hostile environment . Lacking oxygen and filled with radiation ,the person will experience number of terrible physical damages the pressure of the heart and blood vessels often pushes the blood to the astronaut’s body and heart. This causes the veins of the neck and face to stand out more than usual and eyes become red and swllowen. The astronauts may also suffer from headaches. Astronauts can also suffer from illnesses such as “space sickness” or ‘space adaptation syndrome’.

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  • 滕佩杉 2021-06-23

    First danger is the vacuum of space environment. Lacking oxygen and filled with radiation will cause terrible physical damages if they step outside of a spacecraft without protection. Besides, working in space suits is not as easy as one might think. In addition, the weightlessness of space may drive them floating away into space. Last but not least, physiological changes can be induced.

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  • 曾海燕 2021-06-23

    1. lack of air pressure which would also cause the expansion of the body's tissues.

    2、Temperature would also be a factor, with the astronaut possibly freezing or burning depending upon his or her location in relation to the sun.

    3、 He  would be exposed to radiation.

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  • 陈漂楠 2021-06-23

    A completely weightless environment would hamper astronauts' movement;There's a lot of space junk in the universe;There is a huge amount of nuclear radiation in space.

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  • 刘雨姗 2021-06-23

    In outer space, without the protection of Earth's atmosphere and magnetic field, cosmic rays are one of the most dangerous threats to the human body. Cosmic rays are high-energy subatomic particles produced by bursts of solar particles or the explosion of stars in the Milky Way. These cosmic rays are extremely lethal to human cells, and if astronauts are exposed to them, they can cause everything from cancer to acute radiation sickness. In addition, lack of oxygen, weightlessness is also very dangerous things.

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  • 王子怡 2021-06-23

    First,due to the lack of gravity,astronaut may float away into space.Second,because of the weightlessness,the pressure of the heart and blood vessel often push the blood to the astronauts'body and head.This causes the veins of the neck and face to stand out more than usual,and the eyes to become red and swollen.And the astronauts may also suffer from headaches and experience dizziness and nausea at some point.

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  • 杜瑶 2021-06-23

    When astronouts accomplish missions,they might encounter many dangers,which can be divided into two aspects:environment and illness.First,the vacuum of space is a hostile environment that lacks oxygen and gravity and is filled with radiation.And the lack of air pressure would induce the blood and other liquids in the body to boil,which would also cause the expansion of the body's tissues.Second, not only must the"puffy face syndrome" be faced,but also"space sickness"and"space adaptation syndrome"can be suffered from.

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  • 方玉杨 2021-06-23

    In outer space without the protection of the earth's atmosphere and magnetic field, cosmic rays are one of the most dangerous threats to human beings. Cosmic rays are high-energy subatomic particles produced by the explosion of solar particles or stars in the galaxy. These cosmic rays have great killing power on human cells. If astronauts are exposed to cosmic rays, they will cause various diseases, including cancer to acute radiation diseases.

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  • 薛郑文 2021-06-23

    1. The sealed capsule or spacesuit is broken by space garbage, resulting in oxygen leakage

    2. The failure of the space capsule made the astronauts unable to support their lives and wait for rescue

    3. In the process of launch and return, the failure of launch vehicle or spacecraft leads to the failure of launch or return

    4. Can't rule out being attacked by high-level life in the universe

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  • 朱双妍A38 2021-06-23

    1、The lack of air pressure would induce the blood and other liquids in body to boil, which would also cause the expansion of the body's tissues.

    2、Temperature would also be a factor, with the astronaut possibly freezing or burning depending upon his or her location in relation to the sun.

    3、 He  would be exposed to radiation.

     

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  • 曹彬烨 2021-06-23

    The vacuum of space is a hostile environment. He or she would become unconscious within seconds because of lacking oxygen. The lack of air pressure would  induce the blood and other liquids in the body to boil, which would also cause the expansion of the body's tissues. Temperature would also be a factor, with  the astronaut possibly freezing or burning depending upon his or her location in relation to the sun. In addition, he or she would be exposed to radiation, which in large amounts can cause damage to any matter-particularly living tissue.

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  • 万俊杰 2021-06-23

    The vacuum of space is a hostile environment. Lacking oxygen and filled with radiation, if a human being were to step outside of a spacecraft without protection, he or she would experience any number of terrible physical damages. The person would become unconscious within seconds because of the lack of oxygen ro the brain. The lack of air pressure would induce the blood and other liquids in the body to boil,which would cause the expansion of the body's tissues.

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  • 陈浩 2021-06-23

    Despite the peaceful appearance,the vacuum of space is a hostile environment .Lacking oxygen And filled with radiation and filled with radiation ,the person will experience number of terrible physical damages and become unconscious within seconds.Meanwhile,the lack of air pressure would induce the blood and other liquids in the body to boil,which would also cause the expansion of the body's tissues .Besides,temperature would also be a factor ,with the astronaut possibly freezing or burning depending upon his or her location in relation to the song.

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