-
At 10 a.m. on June 20, this is an exciting moment when China will conduct its first space lecture on the Shenzhou spacecraft. This is unprecedented in our country and the second time in the world. Therefore, the Shen 10 Space Teaching is not only a prosperous era for the whole country, but also a prosperous era for scholars and friends in the fields of astronomy and physics around the world.
When was the first space lecture? In fact, as early as 1985, NASA proposed the idea of teaching in space, and trained two female teachers for this purpose, one is McAuliffe and the other is Morgan. Sadly, however, McAuliffe and the spacecraft died together in the space of the spacecraft when the spacecraft lifted off the following year – 73 seconds after liftoff, the spacecraft Challenger suddenly shattered.
However, Morgan did not give up on this dream of teaching in heaven, and she prepared for this for another 22 years. Finally, in 2007, she conducted the world's first space lecture on the International Space Station, giving students a 25-minute lesson and showing how astronauts exercise in space and how to drink water in space.
Coincidentally, this time my country is also taught by female astronauts, but the difficulty of teaching is much greater than that of Morgan - this time Wang Yaping mainly shows some physical phenomena in a weightless environment, and the demonstration is no longer drinking water, exercising and other things that we have already been more clear, but physical concepts with higher scientific and technological content.
In this lecture, Wang Yaping mainly demonstrated five experiments, namely mass measurement, single pendulum motion, gyroscopic motion, water film and water balloon and other five basic physics experiments, mainly to let young people understand the characteristics of object motion under weightlessness conditions, what is the role of liquid surface tension, and at the same time deepen the understanding of basic physical concepts such as mass, weight and Newton's laws. These five experiments may not seem simple, but the physics behind them is surprising and profound!
Did they delineate this experiment themselves in advance? Not really. Some of the problems in this experiment were collected by the China Manned Space Engineering Network, and this is not only a breakthrough in aerospace, but also a breakthrough for the young people themselves.
Because only questions with demonstration value can be solicited, this requires us teenagers to supplement more relevant knowledge, so that we can enrich ourselves from the inside out, and not be strong from the outside and empty in the middle.
Some people ask if the domestic water in space is recycled. I'm also interested in this issue. Commander Nie Haisheng told us that the water in the spacecraft is brought from the earth, but it is not yet recyclable, because it requires more advanced technology and complex equipment.
Hearing this, I couldn't help but feel a little sad, how hard their life in space must be.
Perhaps, whether the recycling of domestic water in space can be realized depends on our young generation. I believe that in the near future, there will be more people who are interested in the mysterious space and are willing to exert greater strength for our aerospace industry, and move closer to the realization of our "Chinese Dream and Space Dream"!
-
Just look it up on the Internet yourself.
-
Take me to space" how to write a 500-word essay after viewing.
We all have many dreams, it is like a vast ocean as far as the eye can see, and we and the motherland have a common dream of Chi Tong - space flight. Soar into the sky, walk to the moon, walk through space, these were previously only myths. However, thanks to the efforts of generations of astronauts, it has become a reality.
First of all, the way the three teachers appeared was very eye-catching. Like a fairy, they "fly" into our eyes, they are like a tour guide to take us to a trip to the heavenly palace, let us feel the strangeness of microgravity, experience the change of fluid, and compare the difference between the surface tension of the universe and the land. But the magic polo that fascinates me the most is the one.
I saw a beautiful purple water yard Zitan ball fixed to the stand, and the inflator was placed next to it. I saw Mr. Liu, pick up the inflatable bucket and spray at the water balloon, the water balloon shook violently, and then Mr. Liu said, "I'll do a magic trick for everyone!"
I just saw that she took out an iron ball: "This is a hollow iron ball." He closed his eyes and threw it at the water balloon, I thought to myself
This water polo is sure to be pierced! But there was an amazing scene, the water balloon was like glue, pulling back the iron ball that was about to fly out, and I opened my mouth wide in surprise. Then something more amazing happened, Mr. Liu picked up the inflator and aimed it at the water balloon, I was so nervous that my heart raised my throat and eyes, "Whew", she opened a "shot" like a water balloon, the water balloon just shook for a while, and returned to normal, I stood up uncontrollably and clapped.
This class not only allowed me to understand the structure of the aerospace plane, but also let me understand various knowledge, which made me gain a lot.
Enjoy. Everybody has their own hobbies, and those hobbies tend to make us troubled. Forget about the unhappy things and revel in them. >>>More
The annual Chinese New Year has arrived, but what I remember the most is the Chinese New Year's Eve night filled with a strong New Year's flavor. >>>More
I am important No two leaves are exactly the same on a tree, and no two journeys in life are exactly the same. There are flowers in spring, there are moons in autumn, cool breeze in summer, and snow in winter. Each of us is the most outstanding and important work of nature, whether beautiful or ugly, old or young, great or small, we should all recognize: >>>More
Fifteen or sixteen years old is the youth of life. At this time, we are like a stave, composing the ups and downs of life; compose the ingenuity of life; Composed our own sky. Our sky is full of the tenderness of spring and the pride of summer. >>>More
The world is full of color, as long as everyone gives a little love, the world will become a better worldToday, I watched a public service announcement. The content of the advertisement reads: The start screen is gray, and at this point, a woman with a child comes up. >>>More