steve9728

Give me the dice!

Currently, no one would deny this including me at the field of maglev train. But I want to remind you that this Shanghai one was run between the two airports since 2003. And what if I said that the train in China without maglev can reach 486.1km/h by CRH380A... (Thank you Hitachi) Add: wait, we got a 600 one... For something "flying too low" like this, the technology usually isn't the most important part, but the geography in which it is implemented and the degree of development of the cities to which it is connected. It is necessary that the distances between these places are long enough, that the paths are flat and that the tracks are as straight as possible.

Don't know you guys have ever seen such high humidity. My face feels full of water now, damn!

That really depends on how the people thinks "which more important, time or money" and where they are going. In order to recoup losses, the railways have hung wagon cars carrying expresses on high-speed trains on some lines. And if it's just a tour, like the more interesting scenery of south-eastern China and routes from Shaanxi province into the complex terrain of the Sichuan basin, I would also choose the slower trains. Why I said that's not cost effective is, well, put a comparison here: from the city where I live, Shenzhen, to my hometown, Guangzhou. That's around 120km in highway and takes 1.5 hours to drive if there's no traffic jam. If we take the high-speed train, that's 38min by 350km/h takes 78 RMB. A trip from Shanghai to the neighbouring city, Hangzhou, is also about the same price and time. If you are just looking for "Speed", well, that's somewhere better for everyone.

It has a name: Cube Emergency Lunar Vehicle of China, CELV. Some further detail about this lovely little car: http://gxjm.publish.founderss.cn/thesisDetails?columnId=35427676&Fpath=home&index=0&l=zh&lang=zh That little thing is really interesting hahaha

And the most ironic part I think is the name of their most recent launch called "Start Me Up"

The existing maglev train linking the two airports in Shanghai used to operate at 430km/h, but has now been reduced to 300, probably for safety reasons. And the current operating speed of China's high-speed rail is 350km/h. But have to say that 8 minutes journey takes 40 RMB in 300km/h now is not very "cost-effective"

One more: the first rocket to implement active controlled de-orbiting on its upper stage in China. "The upper stage of the rocket left orbit within 400 seconds of ignition and orbited the Earth approximately half a revolution before re-entering Earth in the safety area of Antarctica.", said by Space-Pioneer's official Wechat account. Have to say that this company brough a lot of surprise. Those technologies are actually quite close related with CNSA: such as the coal-based paraffin for this rocket was supplied by the 165 institute, the CASC's sixth academy. So, it's reasonable to assume that the tech about the upper stage wreckage de-orbiting fully under control of the future CZ rockets was tested first time in this launch.

I googled it... no offence but it just doesn't look like something can brew and drink... at least I won't do that. And it doesn't have any caffeine...? So, people drinking it for what?

Tiangong TV S04E20: Busy, Very Busy, Extremely Busy! Those at the beginning of the video are valves and tanks for diluents, oxidisers and inert gases for the Combustion Science Rack in Mengtian Module. "More than 40 times of burning experiments are expected to be completed in the station in 2023.", said by the subtitles. They also show the low temperature storage cabinets in -20℃ in Wentian Module and some footage about the third EVA for Shenzhou-15 crew. Although we still don't know more details about the tasks of this EVA. However, based on this image of the connector between Wentian and Tianhe, it can be sure that the taikonauts have climb some distance in space this time - at least not limited to the Wentian Module.

Suddenly it occurred to me that their success had quite a "historical milestone" meaning: the first rocket fully using liquid propellent launch successfully in the first mission by private fund in the world. And it's also the first rocket using the liquid oxygen and paraffin launched from JSLC. via. https://weibo.com/1462552767/MArN5tgoY The official Wechat account of Space-Pioneer said that this launch made 7 first time in the world and in China: the first successful orbital flight of the world's first liquid launch vehicle for private spaceflight the world's first launch vehicle to apply coal-based space paraffin in flight China's first liquid launch vehicle that does not rely on a launch station China's first launch vehicle with a 3D printed high-pressure supplementary combustion engine China's first launch vehicle with 3-engine parallel engine technology China's first launch vehicle to adopt an all-aluminium alloy surface tension storage box attitude orbit control system China's first launch vehicle to achieve reuse of the rocket structure They also mention that they were extremely accurate to send the sats in orbit: Ø Half-length axis deviation 267m Ø Eccentricity deviation 0.000065 Ø Track inclination deviation 0.004° If we push the definitions further refined to use methane, there still have chance for other companies. Don't you think so, Landspace?

Tomorrow is the Qingming Festival - the festival for graveside ritual and memory of the deceased in China. Besides of it being a legal holiday, it's not a particularly happy one by any stretch of the imagination. Why is the fun fact being because last year on this day, my Russian neighbour in my student flat in UK with glass of wine: knock knock, Happy Qingming Festival! Of course, I suspect that guy was just looking for another excuse to have a drink.

The new timeline of CSST (Chinese Survey Space Telescope): Aug.2023: Completion of optical facility identification pieces (the primary prototype) Feb. 2023: Completion the review of prototype turns to flight model Mar. 2024: Completion of the flight model and delivery the platform to carry out full module tests Nov. 2024: Available for launch via. https://weibo.com/2645044133/MArOJ6amU So, the news some time ago that the launch date had been brought forward to 2023 was some kind wishful thinking by some media.

Irresponsible guesses about the Shenzhou-16 crew member: Jing Haipeng (co-pilot of Shenzhou-7), Yang Liwei (the first taikonaut, but very unlikely though), and one of the third echelon of taikonauts that has never been publicly listed. Of course, this guess is pretty idle. Do some deeper little research about this. Some of the news report said that the Tianzhou-5 cargo ship will maintain in orbit for one year. Comparing to the previous TZs, which were running in the orbit for half a year, so I think the Tianzhou-5 won't de-orbit immediately after the Tianzhou-6 docking with CSS. But to be a co-orbit cargo bay with the station. When the Shenzhou-15 crew finished a week or two for handover the station to Shenzhou-16 crew and leave the station, Tianzhou-5 probably will dock with station again.

Ryuichi Sakamoto (坂本 龍一), was a Japanese composer, music producer, singer, actor, pianist, BA in Composition, MA in Sound Studies, Faculty of Music, Tokyo University of the Arts, was died of rectal cancer at the age of 71. There are so many of his works - I don't even know which one to share. But here's the one you must hear before:

That's also the second successful launch by commercial company in China this year. And one of the payloads it sends was "interesting"

There are not many helicopters with skids in China. Some kind AC311 probably. My personal stereotype of these domestic helicopters using skids in China is that they are basically derived from the French Aérospatiale Gazelle (SA-342L). When I search these helicopter, I find that they just drove this to the Tibet - I bet the French never think the improve of SA-342L could be used in this way. However, and not to be an April Fool's joke, on my way to some kind of social gathering this afternoon, I saw a helicopter land for the first time on the helipad on the roof of a hospital near my home. This hospital has had this helipad for as long as I can remember, but I've never seen or heard of it being used. Pray for that guy

Currently, the CSS inside is full of the parcel. A "semi-official" Weibo account said "this is expected to be alleviated after the docking of Tianzhou-6." But he doesn't say in what way. As far as I know, there's also have some BEAM like inflatable cabin experiments in the future. But there's short of docking port right now. It's also possible that he is doing April fool

Confirmed. CMS's official weibo said that, the crew "has carried out the third time EVA activities. Under the close cooperation of the ground crew and cabin astronaut Deng Qingming, the two exiting astronauts, Fei Junlong and Zhang Lu, successfully completed all the established work and returned safely to the Wentian Module." According to my own little tally, the blue suits are currently used most often, eight times in total.

Yaogan-34 satellites constellation, which have beautiful white horse on the mission patches! Officially (although I can see it too) the mission patches are inspired by a famous bronze artefact from the Han Dynasty, the Galloping Horse Treading on a Flying Swallow (马踏飞燕). Interestingly, it does look quite good in profile, but if you can walk up to the front and look at it... It doesn't look too smart hahaha

OK, now the Shenzhou 15 crew has carried out two EVA missions under classified conditions. If this rumour-like information is accurate A article to introduce how to send supply and payloads by Tianzhou cargo ship including the new EVA suit: Research and Development of the Tianzhou Cargo Spacecraft The idea about designed the fridge with front and back doors. Loading something need to keep in low-temperature before the launch is pretty genius.

Well, my friend, Chinese isn't someone you need to be looking for in this case, but your Congress. It's illegal for you to "be cooperative" with CNSA

Let's hope that plan about nuke the moon only stay in the movies But the movie I watched months ago about when the plan to install engines on the moon to exile it was failed, and the idea of making up for the failed plan by placing thousands nuclear warhead somewhere on the moon to detonate it by chain reaction in phased array was really cool

Galaxy Space (银河航天), the satellite manufacturers, in their official weibo said that, these four InSAR would be perform a wheal formation. The primary star will locate in the middle of the wheel and the three secondary stars are evenly distributed on the hub of the wheel. They form the first international formation of satellites on wheels. They also mention in their official wechat account said that, this system "has the capability of 1:50,000 scale mapping of global non-polar areas, which can quickly and efficiently carry out global land mapping with high precision. It has the capability of millimetre-level deformation monitoring, which can provide data support for the investigation and prevention of ground subsidence, subsidence, landslides and other disasters, and is a powerful tool for the early identification of major geological disaster hazards in complex areas. It has the capability of sub-metre high-definition wide-area imaging, which can provide all-weather and round-the-clock high-quality imaging observation of the ground, and the overall technology has reached the international leading level." More than that, PIESAT is planning to launch more in the future: now is the first stage - launch the first four satellites into 528km to validate the technology. The second stage they plan to launch 16 satellites including 4 C-SAR in co-orbit in 542km×49° LEO. And 4 group, 12 X-SAR sats in total at 522km SSO with 0.3~12m resolution. The final stage they plan to launch 18 including 8 C-SAR satellites like second stage. And 10 high resolution optical satellites which the resolution will be higher than 0.5m. After the completion of this satellite constellation system, it will have capability for global coverage in one day, revisit any place in one hour, and deformation monitoring every day for anywhere may need for Earth observation. Saw something interesting: the two crews in two different station performed mission in similar time, which the Shenzhou-14 crew and SpaceX Crew-4, had similar photo!