Shulou(Shulou.com)05/31 Report--

Audio commentary

Hello, everyone. The meeting will answer your questions. Many people still don't know what drives the space station at such a high speed and what the speed of the space station depends on. Now let's take a look at it.

Answer:

1. The initial velocity comes from the orbital velocity at the time of the launch of the module, followed by inertia; but the orbital altitude of the International Space Station is more than 300 km (300 km, 400 km), the atmosphere has not yet completely disappeared, and there is still resistance. Because of the decrease in speed, the height drops by about 100 meters a day; therefore, in a few months, we will promote and increase the speed. Space shuttles and cargo ships should be easy to understand. They all have engines.

2. Characteristics of the space station:

3. The space station has the characteristics of large volume, complex structure, long flight time in orbit, many functions, many space scientific research projects and so on. One of the characteristics of the space station is economy; for example, all space stations do not have the function of returning to the ground, but accept astronauts to carry out space experiments, which can make manned spacecraft become a tool for transporting only astronauts, thus simplifying the structure of the space station. reduce the difficulty of engineering design and space costs; in addition, the space station may or may not be manned during operation. As long as the astronauts start debugging, they will be able to work as usual, check regularly, and then achieve results. This can shorten the time astronauts spend in space and reduce a lot of consumption. When the space station breaks down, it can be repaired and replaced in space, thus prolonging the life of the spacecraft. Increasing the service life can also reduce the space cost, because the space station can fly for a long time (months or years), thus ensuring the continuity and depth of space scientific research, which plays an important role in gradually deepening research and improving the quality of scientific research.

This is the end of this article. I hope it will be helpful to all of you.

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