News on China's scientific and technological development.

Hendrik_2000

Lieutenant General
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The other day I read an article about US failure on Hypersonic test. Today Asia Times come with timely article as to why is that so. The military has the best brightest pick. As well history taught every Chinese the need for strong defense. It is one hell of motivation! Here is an excerpt Like most Chinese, Dr Wong knows his history – or, rather, a history of China’s long suffering at the hands of European imperialists and Japanese invaders. He grew up watching movies about heroic, tragic Chinese heroes defending their homeland against Japanese invaders or fighting American soldiers in Korea.

Every trade restriction and every public pronouncement by an American politician about China’s challenge to the United States is amplified by the Chinese media, as an exhortation to young Chinese to redouble their efforts to surpass the US in technology. When China’s government denounces American efforts to suppress China’s development, by denying access to technology or restricting its trade, Dr Wong is indignant, as are most Chinese.

His parents grew up in extreme poverty, and his grandparents lived through the terrible hunger of the Great Leap Forward of the 1950s. How dare the rich Americans envy the Chinese who have worked so hard for a modest degree of prosperity, he thinks. Dr Wong is proud of China’s achievements and mindful of the sacrifices that his parents’ generation made to ensure China’s prosperity. He can’t imagine how China might threaten America, but fears America’s threats to China.

Dr Wong made lists of the advantages and disadvantages of the two offers until late in the night. At length, he decided to take the government job with its generous salary, roomy apartment and amenable lifestyle – and give something back to China. His parents, he thought, will be proud of him.
 

ougoah

Brigadier
Registered Member
Not only that but "ten years ago China barely had a space program" lolololololol.

China's space program in 2010 had developed many launch vehicles India's current 2022 space program cannot dream of let alone develop and then manufacture. Not to mention even by 2010 China's had a monumental list of achievements and foundational space technologies that India today still hasn't managed to pull off or develop - for one thing a deep space network just as a starter.

Back in 2003, a whopping 19 years ago now, China became the third nation (only two left in existence actually but let's call Russia the progeny of the USSR) to achieve manned spaceflight. Til today, only three nations have done this and can do this. 19 years ago. One of the most difficult space tasks. So no, China didn't "barely have a space program 10 years ago" what a moronically, comedically, untrue lie.
 

Strangelove

Colonel
Registered Member
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Major project of China's west-to-east power transmission program starts operation

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A major part of China's west-to-east power transmission program kicks off operation on July 1, 2022. /China Media Group

A major part of China's west-to-east power transmission program kicked off operation Friday, a further boost to the coordinated development among different regions.

With its transmission line stretching about 2,080 km, the Baihetan-Jiangsu 800-kilovolt ultra-high-voltage (UHV) direct current power transmission project transmits clean hydropower from the southwestern province of Sichuan to east China's economic powerhouse Jiangsu Province.

It is the world's first UHV direct current power transmission project using a new approach that combines the conventional direct current and flexible direct current technologies, according to the State Grid Corporation of China.

Starting construction in December 2020, the mega project spans five provincial regions, with many parts built into the mountains.
"We have worked against high altitude, low temperatures and complex landscapes to meet the schedule," said Zhang Mingdi, a project manager participating in the construction of the project's Sichuan section.

China's west-to-east power transmission program seeks to balance the country's electricity supply and demand in different regions. It transmits the electricity surplus in western regions rich in power-generating resources to eastern regions which need more electricity to power economic activities.

Sichuan is home to the project's powerhouse Baihetan, the world's second-largest hydropower station. The Baihetan-Jiangsu project is expected to accelerate the transformation of Sichuan's natural resources into economic benefits, bringing investment totaling about 100 billion yuan (about 14.92 billion U.S. dollars) in electricity and other sectors.

The electricity market's volume of Jiangsu, the power transmission's major receiver, is expected to top 10 million kW during the 2021-2025 period.

The project has a power transmission capacity of 8 million kW, generally meeting the demand of Jiangsu's power demand, said Wu Wei, vice director of the construction department of State Grid Jiangsu Electric Power Co., Ltd.

Some 14 million tonnes of coal could be saved thanks to the project, which can deliver more than 30 billion kWh of clean electricity annually, helping reduce carbon dioxide emissions by over 25 million tonnes every year.
 

supercat

Major
Another problem with desalination is what to do with the salt. It's not pure enough for human consumption typically, and requires further processing and also there is just too much. Also hard to justify dumping in the ocean again, which just makes the local area extra salty and kills everything .
Sodium batteries for EVs?

Huawei is having a hiring spree in Russia right now.
 

mossen

Junior Member
Registered Member
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RISC-V International has relayed word to us that in China the DeepComputing and Xcalibyte organizations have announced pre-orders on the first RISC-V laptop intended for developers. The "ROMA" development platform features a quad-core RISC-V processor, up to 16GB of RAM, up to 256GB of storage, and should work with most RISC-V Linux distributions.
 

ZeEa5KPul

Colonel
Registered Member
Maybe. I don't know the chemistry of the sodium in the batteries, but it's probably not table salt NaCl.....
It's sodium carbonate or sodium hydroxide. I ran some numbers from my brine extraction idea and it seems a non-starter for lithium. A single large desalination plant could conceivably produce 40 tons of lithium annually, which is a paltry number. That's enough lithium for 0.25GWh of batteries, for context CATL's annual battery production capacity is 170GWh heading to 670GWh. You would need thousands of desalination plants to make a dent in that market.

For sodium-ion batteries, the outlook is completely different. Sodium is 175000x (35ppt vs 0.2ppm) as abundant as lithium in seawater, so a handful of desalination plants' output could probably meet the entire industry's needs.
 

Michaelsinodef

Senior Member
Registered Member
It's sodium carbonate or sodium hydroxide. I ran some numbers from my brine extraction idea and it seems a non-starter for lithium. A single large desalination plant could conceivably produce 40 tons of lithium annually, which is a paltry number. That's enough lithium for 0.25GWh of batteries, for context CATL's annual battery production capacity is 170GWh heading to 670GWh. You would need thousands of desalination plants to make a dent in that market.

For sodium-ion batteries, the outlook is completely different. Sodium is 175000x (35ppt vs 0.2ppm) as abundant as lithium in seawater, so a handful of desalination plants' output could probably meet the entire industry's needs.
Sounds like there's a lot of value in continueing development and research of desalinations plants.

Which is something that is happening in China :)
 
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