To be honest, after watching it, I will be a little disappointed, and this disappointment comes from the almost "completely imperceptible" special effects. As an example of a movie with special effects as the main narrative method, "Avatar" has to be mentioned. But we all know that every plant and tree on Pandora's planet in "A" is CG, and it doesn't take much thinking to produce the sigh of "I rubbed this special effect so realistically". Comparing with "2001 A Space Odyssey", the special effects themselves have become "obvious" because of the large-scale spaceship display shots and the clear positioning of the sci-fi film.
In this film, the fictional space shuttle "Explorer" is on a maintenance mission for the Hubble Space Telescope, STS-157. In the real world, the last US space shuttle "Atlantis" has been retired, and the last mission carried out on the International Space Station construction mission STS-135. The Hubble Space Telescope's last maintenance mission, STS-125, was completed by the space shuttle Atlantis on May 11, 2009.
In other words, the background of "Gravity" is a fictional near future: China's "Tiangong" space station has been built; the US space shuttle has not been retired and continues to perform space missions; the life of the Hubble Space Telescope has also been maintained. According to China Aerospace's current plan, the core module of the future space station will be launched in about 2018 and will be completed at least until 2020. In fact, after the space shuttle, the United States currently has no follow-up manned spacecraft program. "Gravity" feels like it is expressing the voice of "don't retire the space shuttle".
It is precisely because the film is very realistic that it does not look like a movie, but a documentary. The radio noise, the silence in the vacuum, the spherical flames in weightlessness, and so on, have the elements of "showing off", but they are very real. Watching the entire film in the IMAX theater was very shocking.
Here's the nitpicking time, and "Gravity" is by no means perfect.
The first is the issue of orbital height. The orbital altitude of the Hubble Space Telescope is about 590 kilometers. The space shuttle will actively approach during the maintenance plan and leave after completion. This means that the orbital altitude of the space shuttle when it is hit by orbital debris at the beginning of the film is about 590 kilometers.
The question is, after the accident, the two protagonists were transferred from the high orbit of 590 kilometers to the orbit of 320 to 350 kilometers, where the International Space Station is located, using only jet spacewalking backpacks? The maximum size of the International Space Station is about 100 meters, at least 250 kilometers above can visually aim at objects about 100 meters? What's more, the orbital angle between the spacecraft and the equator is different, and the relative speed between them cannot be ignored. In short, the chances of successfully reaching the ISS are too small.
Second, on the International Space Station, the hero let go of his hands and sacrificed himself to save the heroine because he was worried that the cable was not strong enough. At that time, the ISS was still flying normally. After the heroine and the hero were hung by the cables, they were already in a relatively static state, flying parallel to the ISS. At this time, the two of them can touch with just a slight pull, but the male protagonist in the movie seems to be under a very strong force, and the whole person will fly away along the tangent line as soon as he releases his hand. Where does the centrifugal force come from? Also, with the Soyuz in orbit, how could it be possible to open the parachute without separation of the landing module?
Third, when the heroine arrived at the Chinese space station, there were no members. Presumably because of space debris, the astronauts have been evacuated. One Shenzhou spacecraft remains. But in fact, the Chinese space station with a scale of about 60 tons in the future may not maintain the long-term docking of the two Shenzhou spacecraft. Of course, the same problem arises here. The 100 miles mentioned in the film are also impossible to aim at the Chinese space station below 100 meters.
Finally, the biggest problem: the male protagonist in the film said that the spacecraft circles the earth for about 90 minutes, which is no problem. But inferring that encountering space debris every 90 minutes is not big science. The background of the many space debris attacks in the movie is a black starry sky. How can the ISS in a stable orbit meet the debris in the descending orbit again? What's more, the orbit of the ISS is not parallel to the equator, and it will not be in the same position relative to the ground every time it runs. How can it encounter debris again? After Hubble encountered the debris, the ISS also encountered it, and then Tiangong also encountered it. The probability of this is too low.
Also, the protagonists flew from Hubble to ISS and then to Tiangong, which did not take into account the relative speeds of different orbits at all. If this really survives, it is indeed a "legendary experience".
There are also some details, such as the tears will not fly out, the heroine's hair "stands still" in weightlessness, and so on.
However, in the end, I want to say that although there are a lot of problems after careful examination, "Gravity" is still very exciting as a space adventure movie, especially in the IMAX theater with the protagonist flying up and down, the first-person look and feel is very good . Although there are flaws, it is not too much to be rated as the best space movie so far.
Last but not least, although our spacecraft will inevitably learn some aerospace technologies that have already spread, even the keys on the panel are the same as the Soyuz. This is too unscientific, Americans, you are too much!
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