On the evening of December 9, the Chinese space station passed through Qingdao. In the space lecture that opened on the 9th, teacher Wang Yaping introduced us to the basic situation of life in space, which introduced the toilet in the space station. This was followed by an introduction to the sleeping pod, which, when looking out into the universe through the porthole, was pitch black. It was also mentioned that the sunrise can be seen 16 times a day on the Chinese space station, and when the students in the ground class asked questions, they mentioned that the stars in space do not "blink their eyes".
Due to the weightless environment, the human body functions of astronauts will change. In order to be able to stay in good shape when it comes to missions in space, exercise regularly and follow the "exercise prescription" assigned by the researchers.
The space station transits over Qingdao
On the afternoon of December 9, the "Feel Good Trio" gave its second lecture in space on the Chinese space station. A few hours later, China's space station passed over Qingdao, which can be clearly observed this time, but in the evening of the same day, there were more clouds, which may bring some difficulties to ground observation.
16 sunrises a day
The Chinese space station can see 16 sunrises a day, according to Teacher Wang, this is because the Chinese space station will circle the earth in 90 minutes. Every time you go around, you'll see a sunrise and sunset.
How to go to the toilet in space
Like the ground, people still sit on the toilet, but at this time, the user must ensure that the toilet is completely sealed. Space toilet will add a device for pumping, after the astronaut sits well, use this device to seal, and then you can go to the toilet normally in space, there will be no situation where everyone imagines the excrement floating in the cabin, and the circulating filtration equipment equipped in space can also realize the reuse of some excrement, and the non-reusable will be uniformly collected and sent to the cargo spacecraft, unified away from the space station.
Stars don't blink
At the "Tiangong Small Class" on December 9th, the three teachers not only brought us a lot of interesting experiments, but also answered many mysterious space problems for the students. One of the most interesting is the question "Do stars really blink?" Wang Yaping explained to the students that the Chinese space station has not yet seen the so-called UFO, and the space station is outside the atmosphere, the stars will not appear "blinking", the sky is not the azure blue seen on the earth, but a very saturated and rich black.
But through the capsule, the line of sight will not be blocked by the atmosphere, and the stars will emit bright light. And there is an interesting little phenomenon, "one day in the sky, 16 days on the earth", because of the influence of the first cosmic speed, every hour and a half can make a large circle around the earth, so you can see sixteen sunrises every day. In the space class of about an hour, not only has a very rich knowledge of the universe, but astronaut Wang Yaping satisfies the curiosity of many students in the real-time communication session with the earth sub-classroom.