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steve9728

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Everything posted by steve9728

  1. "Failure is the mother of success." Good luck next time Have to say the turn it planned was really crazy though.
  2. The Shenzhou 14 crew were decorated: http://english.news.cn/20230303/9f6a9845a23543209f7e8487ca288f04/c.html
  3. Should be the biggest propellent tank built by CNSA ever. However, the final plans for the CZ-9 are still not clear entirely. But anyway, it's a large diameter rocket, so it's reasonable to try out the manufacturing process.
  4. Proof of one thing, the Chinese internet information and public paper searching skills of the person writing this article in this media leaves something to be desired: if this guy could dig deeper he would find that basically every jet fighter has been argued to be carrier-worthy. Before the introduction of the J-20, I vaguely remember a bunch of people on the Chinese internet arguing whether the J-8 and J-10 and some other projects that had already been discontinued could go on a carrier, and there was a lot of bickering about it. An EVA that had absolutely no official news or coverage on the day. The thing we can confirmed is the Red Suit A and Blue Suit B used once more and there's same crew finished EVA as last time. Last week, while I was working on some 50-thousand-word report with my colleagues, the National Museum in Beijing opened a '30 Years of China's Manned Space Program' exhibition for 3 months. I don't think I have much time to go to Beijing, so I'll just take a few pictures of the exhibits that people shared on Weibo. The shape of new manned spaceship (yeah still don't have a proper official name)'s propulsion module seems like to have a credible and significant changes The manned lunar landing module Via. https://weibo.com/2645044133/MuQxltSOJ Suits for astronauts via. https://weibo.com/2196038737/MuwqD9qxe Some details about the EVA suit "Fei Tian" (the first gen) Some life support equipment in the station including the trace hazardous gas removal unit and CO2 removal unit Via. https://weibo.com/1624763627/Muvj2FwPF Some space food Via. https://weibo.com/6440061457/Mv5sYr0H0 Some "ambitious" for the CSS's phase II construction: a new nodal module (It was shown in one of the promotional videos, and now that it's on display in the National Museum I think it means that the confidence level for this can be raised from ≤60 to ≤80). Via. https://weibo.com/2645044133/Muwv2dGle And some imagine for the new manned spaceship Via. https://weibo.com/2645044133/MuwDKDHE0 Then in an interview with the CSS system chief designer, Yang Hong, in the following days, he said that several more experimental capsules with accompanying flights were planned. These companion capsules will be able to carry out independent missions and then dock autonomously on the station when they need to be refuelled, repaired, and maintained. And the news just in: the first successful ignition of the Combustion Science Rack in Mengtian Module Tiangong TV S04E14: crew setting up the High Temperature Materials Science Rack. Have to say there's soooooo many parcels up there.
  5. After 75 days of convalescence, the Shenzhou-14 crew met the public first time: After completing a summary of their health recovery assessment, the three of them will move on to their normal training work. In the full video (Of course, English subs not available), Cai Xuzhe talks about how watering plants in space is very different from on the ground: when we water the roots of plants we find that the water droplets are not immediately absorbed, but remain on the surface of the roots. Meanwhile, some plants with a certain need for sunlight don't grow very well because they are inside the space station module. The lettuce we grew, however, I thought was quite tasty.
  6. “I think we can all agree that physics gets the credit here, not magic. And so does training and skill: Bruce Lee could deliver a punch with quite a significant wallop. In the end, it doesn't matter if this punch is superhuman or not—I don't want to be on the receiving end of it.” Emmmmmmm… yep However, I have always had the idea that the traditional Chinese martial arts we see today - the unarmed part - is similar to the gymnastics part of the daily training of armies around the world today. It certainly has some combat ability, but I think it is mainly a preparation for armed men before formal training. In turn, these empty-hand fighting techniques were modified in different ways for different needs as they spread from the military to the civilian population. The end result is what we see today as traditional Chinese martial arts: frankly it has become a sort of art performance ......
  7. Source I am ashamed to say that distinguishing between the branches and development models of the AR, AK and Sukhoi has always been something I hardly to learn.
  8. If to be serious, I would have already been part of the ocean waters by that time: let our descendants worry about this, and I'm sure they can made it. If don't to be serious, "Goodbye Solar System!" This film offers three ways of continuing human civilisation: Get in and live in the city underground beneath the planetary engines that propel Earth to Proxima Become an astronaut and go the space station Upload your personality to the server and engrave it into the chip, thereby gaining immortality in the cyber world
  9. And for first time, we have the footage about deploying payload from the cargo airlock. Unfortunately, I can't find that in YouTube or Twitter yet. So here's the original link about CCTV's news about that. Skip to 03:09.
  10. Finished my work for the day and got stuck in traffic on the way back to the hotel in a taxi because of the evening rush. Then I saw the J-20 are going to landing, and more than one. When I was as excited as my 5-year-old first time seeing a regular civilian airliner, the taxi driver: first time?
  11. Because of my profession, I basically got into the habit of finding out about some research units and companies by looking for relevant papers: because Chinese science and technology talents really don't know how to sell their products or what they good at, they just know how to be exceptionally good at theoretical research. So, yep, I looked up the paper on "Stratospheric Airship Control and Design". Based on the seven to eight papers I've read so far, the current line of development for Chinese high-altitude balloons is to explore how to use them like satellite over a designated location. Such as in the "Study on Pseudolite Configuration Scheme Based on Near Space Airships (《基于临近空间飞艇定位的伪卫星布局研究》)" said that, "Compared to satellites and air vehicles, near-space airships offer very significant advantages in terms of cost, lag time, coverage area, responsiveness, flexibility, resolution and survivability." ... " Pseudo-satellites (in this paper referred to as near-space airships) can increase the availability, stability, reliability, and measurement accuracy of the entire system, and can even replace navigation satellites altogether when their signals cannot be received."" The basic requirement for a GNSS user is four visible satellites. When there are less than four visible satellites, the user cannot achieve navigation and positioning with the navigation satellites alone. At this point, the number of available satellites for the user can be increased by multiple near-space blimp seats" pseudo-satellites to meet the condition of at least four visible satellites, enabling a combination of blimp and navigation satellite navigation. Such combinations include '3+1' (three satellites + a ballon), '2+2' and '1+3'." The optimal layout of these airships is: "One airship is located directly above the reference station or positioning centre (with an altitude angle of 90°) at an altitude of 30km; the other three airships are evenly distributed over the perimeter of the service area with an altitude angle of 10° to 15°, the difference in azimuth between them is 120°, and the altitude is 20km, and the distance between the three airships is 86km according to the requirements of coverage area and minimum altitude angle." And, "do they have any ability to control themselves?". The answer from those papers is "yes, but not pretty much". They are basically using the propeller power to maintain a range of corresponding positions within a tolerable range of airflow influences. Some of them used in airships that require particularly long dwell times - not in days and months, but in years - even have structural reinforcements on them. The atmosphere at high altitude is complex and the damn Murphy's Law - anything that can break will break - often results in a small percentage of balloons being subjected to the effects of the atmosphere at high altitude beyond what the control system on board can sustain, leading to the probability of the current "Hello, America". Of course ,there's some weird answer for how to propel the airships themselves: in the paper "New Propulsion Method Study of Stratosphere Airship (《临近空间飞艇新型推进方式》)" shows that, they decided to learn from fish, or more precisely, the tuna: There is even more than one shape for the tail:
  12. The "news" but not pretty "new" and I think is quite cool: the Chinese rescue team using wire-tethered drones to light rescue site in Turkey. The reason why not pretty 'new' is I found that this way to using the drones was already used at the flood happened in Henan Province in 2021.
  13. It's still maximum around -15 ~ -20℃ there. What a rubbish spring in Mars!
  14. Have to say I'm quite curious which docking mechanics they will choose in the future if their manned space project can go well. APAS or SSVP?
  15. emmm, on my business trip to somewhere can witness our airforce @Abel Military Services
  16. Xinhua: Shenzhou-15 crew complete their first spacewalk. CMS's official WeChat account said that this spacewalk lasted seven hours (in this link you can see several gifs about their spacewalk). For the first time, CCTV did not show the live broadcast of the spacewalk between 6pm and 8pm, even if it was taped.
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