Maybe true, but not necessarily. These kits in the photo is probably purchase years ago, we don't know the state today.
News on China's scientific and technological development.
- Thread starter Quickie
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Chinese surveillance satellites have superior lenses.
Rather misleading because it doesn't say which vaccine candidate. Several are already in Phase 3 trial.
China could produce 600 million doses by year end. The inactivated vaccine production processes is more mature than that of the mRNA vaccine, thus will be faster to produce.
PiSigma
"the engineer"
Not covid, HIV. Read the article!
Glass manufacturing is something like an art. I heard about how in a building in Dubai, I think, they went with some Western supplier and the glass shattered with high winds. Turns out the contractor skimped on the designer's specification to use Japanese glass and that happened. The Japanese glass for building windows, at least at the time, was superior to all those in the market.
Back in WW2 the Soviets had a lot of issues with glass quality and that manifested itself in all sorts of problems, from airplane cockpit windows which lacked visibility, to tank optics which had poor illumination. Not a lot of people know but, the humble T-34 was actually one of the first tanks to have optical sights. It was just that the glass was so poor they failed to be of much use. German optics were much superior. Back in Soviet Union times they imported most of their glass from East Germany and that was high quality. With the fall of the Soviet Union I sometimes wonder what happened to Russian glass. But they don't seem to have problems with the Su-57 canopy so perhaps the issues have been mitigated?
Regarding camera lenses remember we had that post about the liquid lens Huawei introduced. Now THAT has a lot of potential especially for small lenses. You can have incredibly compact and adaptive lenses you couldn't do with solid lenses. I expect as that technology matures it will replace all the lenses used for photography in a decade or two. It will eliminate most of the weight in current cameras.
With regards to this quantum supremacy result, while it is significant, it appears the computer the Chinese made isn't programmable. It is basically fixed hardware made to compute a certain task. Now, that isn't bad per se, but it reduces the applicability of it. I have considered for a long time that we will eventually switch to optoelectronics or photonic computers rather than the typically mentioned "quantum" computers. Well they may end up being quantum computers as well. But the thing is a photon is a lot smaller than an electron so you can theoretically make it more dense in the long run. Problem is optical integrated circuits are basically crap with current technology. Even optoelectronics have really poor density. It will require a re-think of the entire architecture of a computer and even what is a computer and how you will program one to do a set task. This might take decades even once the basic elements are achieved. Which they haven't.
I think we are stuck with conventional computers for at least two decades and even if they are replaced for certain tasks it does not mean regular computers will vanish. I think they will start out as accelerator chips or machines to compute certain tasks first.
D
Deleted member 15949
Guest
Yeah, China is the largest exporter of lenses and the 3rd largest exporter of lasers along with having a crap ton of optical satellites so I think Chinese optoelectronics are up to snuff
I find 'weak' Chinese optics hard to believe, with Chinese smartphones all over scoring high on DXOMARK, and not just Huawei which has licensed from Leica, I'm talking about Xiaomi, Oppo and so on. With the surveillance state you are also going to need good optics for your drones and security cams. The images I see from DJI looks very good. Good lenses require tiny amounts of rare earth elements which China happen to be good in not just supplying, but in finding more applications with them.
Hendrik_2000
Lieutenant General
The HL-2M Tokamak, China's new-generation "artificial sun," was commissioned in Chengdu, SW China's Sichuan on Fri after the installation work was completed. This breakthrough has laid a solid foundation for China’s independent design and construction of nuclear fusion reactors.