News on China's scientific and technological development.

CMP said:

Wait. Did Trump really say that? What's the context? Do you have the full clip?

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I am pretty sure that I saw it somewhere. Just tried looking for it, but after a minute, I thought forget it.

President Trump says the most strangest things ever, so after the entertainment value and shock value, it probably does not mean anything.



Then after further digging, this is as close as I got.

horse said:

Absolutely! You can say that again!

Everyone tows the party line.

The only people in America with a different view, cough cough, the truth, about China, the only people who dare say anything are old rich white guys. Cannot do anything to them, they are old rich and white.

Didn't even President Trump say that Americans should all love China, like a couple months ago?

It's getting weird, and freaky.

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Elon Musk: I am not so old.

We already know this.

US guru says China’s supercomputer power may exceed all countries but flies under the radar because of sanctions​

• Jack Dongarra, professor, Turing laureate and co-founder of TOP500 supercomputer list, says China still produces the most ultra-fast computers
• He speculates having the world’s No.1 computer may ‘cause the US to take actions against China that would further restrict technologies from flowing into China’

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Converting a photo to an Excel file:

China’s 1.5 Exaflops Supercomputer Chases Gordon Bell Prize – Again.​

The Association for Computing Machinery has just put out the finalists for the Gordon Bell Prize award that will be given out at the SC23 supercomputing conference in Denver, and as you might expect, some of the biggest iron assembled in the world are driving the advanced applications that have their eyes on the prize.


The ACM warns that the final system sizes and final results of the simulations and models run are not yet completed, but we have a look at one of them because the researchers in China’s National Supercomputing Center in Wuxi actually published a paper they will formally released in November ahead of the SC23 conference. That paper,

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, was run on the “Oceanlite” supercomputing system, which , that for a quantum simulation across 41.9 million cores, and that we speculated the configuration of back in March 2022 when Alibaba Group, Tsinghua University, DAMO Academy, Zhejiang Lab, and Beijing Academy of Artificial Intelligence ran a pretrained machine learning model called BaGuaLu, in the Oceanlite machine.

supercat said:

Converting a photo to an Excel file:

https://twitter.com/i/web/status/1702427026282676238

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Now that’s a very useful feature for a mobile device, much more than say the “ dynamic island” feature on certain other brand.

my thoughts on the product launches from this week. a lot of intersection of wearables and technology

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A network that connects quantum devices and a central server that spans Hefei, China can allow multiple secure quantum chats at once.

The most advanced quantum communication network yet sprawls through the Chinese city of Hefei. Comprising three quantum devices and a central server, it is as close to an unhackable quantum internet as we’ve gotten yet.

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Built by

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at the University of Science and Technology of China and his colleagues, the network shares some features with conventional communication networks, such as transmitting information through optical fibres. But the light travelling in the quantum network comes in chunks whose quantum states encode the information and have properties that have no counterpart in conventional light signals. Specifically, the property of quantum entanglement can be leveraged to make it nearly impossible to surreptitiously copy or alter the information,

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.

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Similar quantum networks

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, but this one stands out because of how many potential users could connect their own quantum processor to it and the kind of devices, like quantum memories, that it includes.

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In the centre of the network is a server that is connected to three users, which have a processor and a quantum memory. They can use these devices to encode information into photons and send them to the server. The server can manipulate those photons – for example, by entangling them – and then send them back to the users.

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Each user’s

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is made from extremely cold rubidium atoms, which are controlled with lasers, and information can be encoded into the atoms’ quantum state. That’s important because if a photon sent to the server gets lost or corrupted along the way, these can still hold on to the information that the photon was meant to carry.

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Within the network, the team successfully

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from two distant nodes, which is a necessary first step for the two to securely share information. The network could also sustain entanglement between more than one pair of users simultaneously, facilitating multiple secure quantum chats at once.

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at the New York-based quantum communication start-up Qunnect says that combining devices like processors, fibres and memories has previously been too complicated because the properties of the photons must be tweaked and readjusted at many points in the network, so there are numerous possible points of failure. Past experiments pointed at promising steps towards building a network, but this is a true “networking mega experiment,” he says.

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“This is a very interesting milestone on the road to the quantum internet,” says

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at the University of Bristol in the UK. He says that quantum memories are the most important new component since they have not been implemented in a network of this scale before. They are widely considered to be a crucial element for making quantum communication networks large enough to connect between different cities.

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However, Joshi says that the rate at which information can be shared throughout the quantum network in Hefei still needs to be improved for the network to become useful. Currently, it can transmit roughly one bit per second, or less than a thousandth of what dial-up modems from decades ago could.

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“The main challenge in making networks like this cover even longer distance and have even more nodes is in improving the quantum memories,” says

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at the University of Chicago. Both researchers agree that improving the memories’ storage times would enable the network to transmit more information faster.

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Journal reference:
arXiv

China continues to get better at rare earth extraction

This allows China to recover more, extract faster & skip through low RE content

Mozi wide field survey telescope out into operation recently.

pipaster said:

Mozi wide field survey telescope out into operation recently.

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Astrophysics is one area that China is behind even small western countries on, yet is of critical importance in the near future as deep space becomes more relevant, practical applications of astrophysical phenomena like pulsar timing and navigation become realized, and applications of space tech to problems on earth become ubiquitous.

Good first step for observatory building, but more to be done.