steve9728

add: "How to use the backlighting wisely for photography" via. https://weibo.com/6528178851/Myt1Ybqiu

via.https://mp.weixin.qq.com/s/pmxMMV705Jjb6eTkFak1zA

Tiangong TV S04E17: Let's go! I'll show you the mountains and the sea of this world (Don't worry, here's no human language) Looks like it was taken from when the station flies over the Australia Have read an interesting article named "Analysis of Application Scheme of Three-body Periodic Orbits in Manned Lunar Exploration" (that one is full Chinese). This article discusses the different advantages and disadvantages of the Halo orbit near the Earth-Moon L2 point, the near-branch NRHO near the Moon and the large value retrograde orbit, DRO, for the manned lunar exploration. The result of this article in short is: Go to the moon based on NRHO (like Artemis Project): from LEO to LLO, the back to Earth. The DV required for complete Earth-Moon round trip (without lunar landing) is 5289.094m/s. The total flight time is 12.415d and the DV required to calculate only the "entry to NRHO + return from NRHO" is 812.738m/s. Go to the moon based on Halo near the Earth-Moon L2 point: The DV required for complete Earth-Moon round trip (without lunar landing) is 5267.494m/s. The total flight time is 22.084d and the DV required to calculate on the "entry to Halo + return from Halo" is 732.544m/s Go to the moon based on DRO: The DV required for complete Earth-Moon round trip (without lunar landing) is 5244.290m/s, The total flight time is 27.457d and the DV required to calculate on the "entry DRO + return from DRO" is 584.384m/s the time it needs: DRO>Halo> NRHO the fuel it needs: DRO>Halo>NRHO All this three can go every conner of the lunar surface. But NRHO is better for the mission at lunar polar regions, Halo is better for the back of the moon, and DRO can support deep space missions "Three-body periodic orbit is more suitable for missions that require a larger lunar landing window, full lunar access, and better support for subsequent deep space missions. NRHO are preferred for missions that require a short time to observe the lunar polar regions, while Halo orbit are preferred for missions to the back of the moon."

Then I googled “main tungsten producing countries”…

Thinking this isn't relevant to CNSA and this is some sort of scientific investigative, so I just post this here. Almost A year after the accident, the Civil Aviation Administration of China (CAAC) has released a progress report on the investigation into the MU5735 crash in accordance with the relevant regulations: it is still under investigation and inconclusive. (Original one in Chinese from CAAC: Circular on the Progress of the Investigation of the MU5735 Aircraft Accident on 21 March) "So far, the technical investigation team has carried out a lot of work such as site investigation, data inspection, personnel interviews, and experimental analysis, but because this accident is extraordinarily complex and extremely rare, the investigation is continuing in depth. The technical investigation team will continue to carry out cause analysis and experimental verification on the basis of the previous work and will release relevant information in a timely manner according to the progress of the investigation."

In the subtropical and tropical regions of East Asia, there is a kind of bird called the Asian Koel, and "噪鹃" in Chinese. Translate directly means "Noisy Cuckoo". And that's for reason: they would be "singing" at 5am~7am, (sometime maybe little earlier) 10am~12pm, 3pm~6pm and 8pm~10pm, EVERY ** DAY. Why I'm posting this is because whether it's my parents' house, my rented flat, where I work, or even when I was in transit in Singapore a few months ago, all can hear this annoying sound. Although it's sinful to even think about it, I did think about getting a slingshot to shut it up. Correction: It's "singing" at random times throughout the day. Because now it's 2:54 CST, yeah, it's *** singing right now

"The most fascinating part of art is its uncertainty" Damn, my brain has recalled I don't know how many movie plots!

Have to say I've never been interested in this game. Until my gf just played this next to me at this game's recent event.

Hope their second mission can be success

Maybe they will call this era "Plasticous"!

The nomads, on the other hand, used compound bows made of animal horns, bone and sinews because of the lack of metal. China's last feudal dynasty - the Qing - was founded by the nomads of the north. The poundage of their compound bows ranged from 70 to 100 pounds. Which's around 30~45kg.

I think there may be several reasons for this: firstly, there is still quite a difference between the difficulty of drawing a high poundage bow on a running horseback and reloading a crossbow. Secondly, nomads lacked metal: there are a number of ancient Chinese texts which record that "the wretched Mongols plundered everywhere, even the iron pots of innocent people's homes!" Because the core component of a crossbow - the trigger - is something had to be made of metal. A large proportion of the metal had to be imported by the Mongol nomads from the Middle Kingdom, and once the Middle Kingdom was strong enough to control the export of metal to them, it could largely restrict their military development. Finally, and perhaps a bit of a personal stereotype of mine, the production of crossbows required the most basic industrialisation - it's at least a standardised product, especially the trigger. China has had a system of "engraving the name of the artisan on the product" since the Qin dynasty (the time of the terracotta warriors), which allowed the quality of all products to be traced back to their source. The nomads, on the other hand, lived in a different place one season than the next, and it was often difficult to do such things. And fun fact, because the system of "engraving the artisan's name on the product", there's lot of workers name on the bricks of the city walls. There's even a "city wall museum" at Nanjing. Chinese people can see their ancestors using the same surname as themselves. If it's coincidental enough, some guys found that the ancestor with the same name as them!

Then I checked my mobile phone text messages: as it was stuffed with all sorts of ads I don't often read them. Then I found one from the health department about a month ago telling me that a patient had used 300ml of my blood donated in January. Hope that guy can get well now

There is another possibility: the soldier who used the bow was buried in the unexcavated part at the back. After all, although crossbows are quite powerful, until today there is a big difference in the time between reloading a crossbow and bow. As one of the most powerful ancient Chinese empires, I don't really think the types of weapons they use are so limited.

The video tells an incomplete story of the discovery this time. The excavations revealed a weapon that proves its existence in the ancient texts, the "Pi (铍)", a short sword mounted on a long pole like a modern bayonet, as it is written. Archaeologists found that all long-range projectile weapons, all of which were used, were crossbows. And complete objects that had been carbonised were found. Bag for the crossbow, three bundles of bronze arrows, and the first shield from the Terracotta Pit were also found. Also evidenced by the bag and the object of this crossbow is the fact that, in ancient documents, crossbow carriages temporarily not in use had 'fixed wood (檠木)' placed between the bowstring and the arm to hold the arm in place and provide some protection for the crossbow. Rather than some kind of support in a bag: because the bag is big enough. The bag itself. It is about 1.3m long and about 30cm wide at its widest point. The arrows The shield This one proves that people in the Qin dynasty had swords hanging from their waists rather than carried on their backs: there is this argument because the same Chinese character "负" in ancient texts has a different meaning in ancient and modern times. In the documentary record of Jing Ke's assassination of the King of Qin, "王负剑" is translated as "the king carried the sword on his back", but this artefact proves that it was not "the king carried the sword on his back", but more likely "the king threw the sword behind his back and pulled it out to strike back at the assassin". I do think that perhaps in addition to the different buns, the hair ornaments wrapped around the buns may have been a different colour for the soldiers and officers who originally carried out different tasks with different weapons. The original full version of this report, if you want to practice your Chinese skill: https://www.bilibili.com/video/BV19Y4y1Q7mh/?spm_id_from=333.337.search-card.all.click&vd_source=6fef304b8d0c4737896e6b702ddfbfb3 Theoretically, this is already a combined arms, or even some kind "synthetic brigade". The report also said that the third excavation of the Pit 1 has been ongoing for almost 13 years and the total area excavated is only 3% of the Pit 1.

The module that run independently but in co-orbit in with the station I think can solve the problem like the gamma rays altimeter on the Shenzhou effecting experiment payloads.

I do think that somehow, we can learn from the experience in Antarctica. The rubbish of the people there is regularly taken away for disposal by ships from various countries. Several viable graveyard orbits would be carved out of the circumlunar orbit, and a satellite that could actively travel to these orbits to collect rubbish and haul it back to Earth would be launched periodically with crowdfunding from countries with scientific activities on the Moon. It would then back to Earth and be burned up in the atmosphere over the South Pacific under controlled. But this idea is "a little less" feasible than the ideas of aiming for some proper craters to crash down or braking speed on impact

Hello France!

Nope, according to the wiki that's the third time it didn't sent multiple sats by one rocket. Including the last time. But, yeah, this rocket has been on many missions that sent multiple sats at once: 13 times of 16.

CZ-11 successfully launched Shiyan-19 satellite in 19:41 CST via. https://weibo.com/u/5616492130 yep, another cold launch add: mission patch this time:

Needle bolt and centrifugal amphoteric gas generators for the engine "Yuanli(原力)-85" (原力is the Chinese translate "the force" in Star War) from ORIENSPACE (东方空间), was finished the first test-run. "'Yuanli-85' is the first 100-ton liquid oxygen paraffin engine developed by ORIENSPACE. It uses a gas generator cycle and a pin-bolt injector, and is characterised by high reliability, high thrust, reusability, non-toxic environmentally friendly and more economic" "May the force be with you"

Professor from Macau expected the Zhurong the rover can wake up at Martian summer: https://www.vice.com/en/article/xgwqpa/china-mars-rover-zhurong-space?continueFlag=041a033ae4666d201f3fab06f0beb86c

And a trash disposal area and law/rules for any module finish its mission and smash on the moon.

Yes, it's mentioned in other papers that "although options for Americans to build space stations in lunar orbit is really expensive, but they can have more options for landing windows." And there some schematics from some of the paper. Well, yes, it's from KSP. #RealLifeKerbalisms