Agenzia Nova: Onu: la partita tra Usa e Cina dietro la corsa alla successione di Guterres (5)
05 apr 11:00 - (Agenzia Nova) - E' pero' sul versante della rivalita' sino-americana che la corsa assume la sua dimensione piu' profonda. Washington... (Was)
UN: The US-China game behind Guterres’ succession race (5)
Apr 5 11:00 - (Agenzia Nova) - However, the race takes on its deepest dimension on the Sino-American rivalry side. Washington... (Was)
#China #AgenziaNova #Sino-American #Washington
Across Chinese social media, people with STEM backgrounds are creating and sharing content aimed at helping Iran’s war effort.
Say, "Thank You." TERF Island. Not like you deserve it, for the Opium War.
Chinese scientists create world’s coldest alloy. It may surprise DARPA: new rare earth alloy so cold and efficient it could upend decades of reliance on helium-3
cross-posted from: https://lemmygrad.ml/post/11178911 [https://lemmygrad.ml/post/11178911] > Archive link: https://archive.ph/6Iiag [https://archive.ph/6Iiag] > > > Chinese researchers [https://archive.ph/o/6Iiag/https://www.scmp.com/topics/scientists] have unveiled a new rare earth alloy so cold and efficient it could upend decades of reliance on helium-3 and send shock waves through the global race for quantum computers or ultra-sensitive detectors. > > > > A mini-fridge built with the alloy has achieved temperatures extremely close to absolute zero using no moving parts. And it comes at a time when the US Defence Advanced Research Projects Agency (DARPA [https://archive.ph/o/6Iiag/https://www.scmp.com/news/china/science/article/3301298/darpa-losing-critical-next-gen-stealth-jet-tech-race-china-study]) is actively hunting for exactly such a technology. > > > > On January 27, DARPA issued an urgent call for proposals: develop a modular, helium-3-free cooling system for next-generation quantum and defence technologies [https://archive.ph/o/6Iiag/https://www.scmp.com/news/china/science/article/3339907/chinese-military-says-it-developing-over-10-quantum-warfare-weapons]. > > > > Less than two weeks later, the Chinese scientists answered – with a paper published in Nature. > > > > The alloy “has the potential for mass production. The joint team has recently successfully developed a pure metal refrigeration module based on this alloy material,” the Chinese Academy of Sciences (CAS) said on its website on February 13. > > > > “This highly efficient cooling module could offer a stable, portable cooling source for quantum chips and support major space exploration projects [https://archive.ph/o/6Iiag/https://www.scmp.com/topics/chinas-space-programme] with a self-reliant refrigeration system,” CAS added. > > > > “It marks a ‘China solution’ that ends dependence on helium-3.” > > > > In physics, the lowest possible temperature is 0 Kelvin, or minus 273.15 degrees Celsius (minus 459.67 degrees Fahrenheit), a state known as “absolute zero”. > > > > As materials approach this temperature, they exhibit radically different properties: liquid helium loses friction, mercury becomes superconductive and much cutting-edge quantum research becomes possible. > > > > Currently, achieving such extreme low temperature primarily relies on a technique called dilution refrigeration, which requires helium-3. > This stable isotope of helium is an essential resource that China largely imports. Its main sources are linked to nuclear weapons programmes in the United States and Russia, as well as civilian nuclear power plants in Canada. > > > > ---- > > > > According to a research paper published in the journal Nature on February 11, the team employed an entirely different solid-state cooling technique known as adiabatic demagnetisation refrigeration (ADR). > > > > In simple terms, the process involves a magnetic alloy being first placed in an existing low-temperature environment. Applying a magnetic field [https://archive.ph/o/6Iiag/https://www.scmp.com/news/china/science/article/3327231/chinese-physicists-produce-most-powerful-stable-magnetic-field-earth] forces the countless internal microscopic magnets to align uniformly, releasing heat that is carried away. > > > > When the alloy is then isolated from the environment and the magnetic field is removed, the internal magnets return to a disordered state, a process that absorbs heat and further lowers the material’s own temperature. > > > > A major hurdle in this process has been the poor thermal conductivity of traditional materials. While they could get cold themselves, they struggled to effectively cool the surrounding components. > > > > The collaborative team from the Institute of Theoretical Physics and the Hefei Institutes of Physical Science under CAS, together with Shanghai Jiao Tong University, has discovered a new material, a rare earth compound called EuCo2Al9 (ECA). It possesses thermal conductivity similar to metal, allowing it to efficiently channel the cold outward. > > > > “ADR using ECA has achieved a minimum temperature of 106 millikelvin, setting a new record for metallic materials. Also, at such extreme temperatures, its thermal conductivity is one to two orders of magnitude higher than traditional magnetic refrigeration materials, overcoming the key bottleneck of inefficiently extracting the cooling power,” according to the academy. > > > > The ADR method, which eliminates the need for helium-3, is gaining traction in the academic world. > > > > In 2024, Peking University built two “refrigerators” using this principle for quantum computing research, which have been operating stably for several months. > > > > Lightweight portability is poised to be a key advantage of the ECA refrigeration module. > This year’s Chinese government work report mentions the goal of “cultivating and developing the quantum technology industry”. > > > > Currently, superconducting quantum computers require massive dilution refrigerators to cool their chips to sub-kelvin temperatures. In the future, a more portable refrigeration module like this could be instrumental in building smaller, more compact quantum computers.
China’s role in aiding Iranian resistance
cross-posted from: https://lemmygrad.ml/post/11148114 [https://lemmygrad.ml/post/11148114] > The following is a statement by Friends of Socialist China – U.S. socialistchina.org/ [http://socialistchina.org/] > > > Increasingly countries are able to resist U.S. imperialism’s most violent, unpredictable attacks and overwhelming firepower by sharing simple technology, resisting U.S. sanctions and increasing trade with each other. > > > > Iran has made stunning progress in self-defense capability by developing many thousands of relatively low tech, far less expensive drones. The Pentagon and the Zionist military are forced to burn through precious supplies of fabulously expensive and complex interceptor missiles in an effort to block barrages of Iranian drones that are very effective. > > > > Until recently the U.S. had a chokehold on many forms of technology. Those days are past. > > > > Iran has acquired significant and strategic technological, military and surveillance capability from China, strengthening its defense capabilities and internal security infrastructure. Key areas include missile components, air defense systems, drone technology, AI-enabled surveillance and satellite navigation via the BeiDou system to track U.S. forces. This boosts Iran’s operational capabilities. > > > > Although satellites are now precise enough to read the license on a car from space, all of the maps available commercially are clouded over on U.S. bases and important industrial and military sites. Only the Pentagon had full access or the ability to read in real time tens of thousands of complex images. > > > > ## Real-time intelligence sharing > > > > But once technology exists it is impossible to keep it in a box. > > > > China has utilized its fleet of 500-plus satellites to provide the world with constant SIGINT (Signals Intelligence) and terrain mapping. This support helps Iran track U.S. naval movements in the Persian Gulf region in real-time. > > > > Chinese commercial satellite firms, notably MizarVision, have publicly released high-resolution, AI-annotated, satellite images of U.S. military bases and assets throughout West Asia. > > > > The company specializes in generating geospatial intelligence. The images appear in near-real time. So U.S. aircraft, naval vessels and air defense systems (such as Patriot and THAAD systems) are visible in locations including Jordan, Saudi Arabia, Qatar and Bahrain. > > > > Conventional armed forces are now vulnerable to observation from hundreds of satellites in low Earth orbit. A number of the facilities and assets posted by MizarVision were subsequently targeted by Iran in missile and drone strikes, which were launched after the U.S. and Israel launched Operation Epic Fury on Feb. 28. > > > > The deluge of material shows how difficult it has become to hide military assets. > > > > MizarVision’s account on X media site made its first post on Feb. 24, four days before the U.S. launched their sneak attack. > > > > This now publicly accessible imagery can be downloaded almost immediately, offering a cheap source of real-time intelligence. The images of U.S. bases, naval groups and air defence systems are all labelled and geolocated using artificial intelligence. > > > > China has also supplied to Iran advanced UHF-band radars like the YLC-8B, which uses low-frequency waves to negate the radar-absorbent coatings used by U.S. stealth bombers and fighters. > > > > Iran has been able to transition to the Chinese BeiDou satellite navigation system as an alternative to the U.S.-created GPS system to avoid manipulation and prevent U.S. intelligence from using it to track Iranian targets within the country. > > > > ## Continued Chinese trade with Iran > > > > It is well-known that in the face of the harshest U.S. sanctions against Iran and a demand that every other nation comply with U.S. sanctions and join in blockading Iran, China has continued a steady trade with Iran utilizing both open trade and shadow fleets. China accounts for 80%-90% of Iran’s total oil exports. Other key imports include Liquified Natural Gas (LNG), petrochemicals, plastics, iron / steel, copper and mineral-based products. > > > > This lifeline is part of a 25-year strategic cooperation agreement signed in 2021. In return China gives concrete assistance in infrastructure development, providing machinery, mechanical appliances and parts, electrical machinery and electronics, tractors and trucks. > > > > China has provided diplomatic support for Iran and clearly pledged continuing humanitarian assistance while denouncing the U.S.-Israeli war as being a flagrant violation of international law. (tinyurl.com/5arzw49k [http://tinyurl.com/5arzw49k]) > > > > The most important component is Iran’s determination to defend itself and to acquire the technology, training and skills to maintain and strengthen its sovereignty. > > > > Increasingly, countries determined to survive U.S. domination recognize the value of sharing skills and technology in confronting a vicious system built on maximizing profits to billionaire corporations. > > > > Go to socialistchina.org/2026/03/25/chinas-role-in-supporting-iran/ [http://socialistchina.org/2026/03/25/chinas-role-in-supporting-iran/] to see the statement.
Two new types of Chinese anti-drone laser weapons revealed in official media report; expert sees China's laser-based counter-drone technologies at global forefront
cross-posted from: https://lemmygrad.ml/post/11141812 [https://lemmygrad.ml/post/11141812] > > A report by official Chinese media on Wednesday unveiled two new types of anti-drone laser weapons. A developer said such laser weapon systems, supported by intelligent targeting and multi-sensor integration, demonstrate strong responsiveness and adaptability, while enabling coordinated operations within an integrated combat network. > > > > Footage released in the CCTV News report showed how the systems countered low-altitude, slow-flying small drones simulating covert penetration on the battlefield, flying at an altitude of 50 to 80 meters, which is within the blind spot of conventional radar systems. > > > > More advanced threats such as fiber-optic drones, capable of transmitting real-time data and video through physical links and thus resistant to electronic interference, pose additional challenges and often require physical destruction, according to the CCTV News report. > > > > In response to such threats, multiple counter-drone systems were featured. A container-like platform identified as the “Guangjian-11E,” or Light Arrow-11E, multi-mode terminal jamming system can rapidly lock onto targets and disrupt their onboard sensing and targeting functions, the report said. > > > > The “Guangjian-21A”, or Light Arrow-21A, system, meanwhile, operates in a “shoot-on-the-move” mode, allowing it to maintain sustained firepower while reducing exposure to counterattacks, reported CCTV News. > > > > In terms of engagement methods, the “Guangjian-21A” specializes in “hard-kill” capabilities, generating high-density energy beams over several kilometers to penetrate drone structures and destroy internal circuits or propulsion systems within seconds. By contrast, the “Guangjian-11E” employs a soft-kill approach, using pulsed laser energy to precisely disable key components, effectively blinding drones and disrupting their reconnaissance and data transmission functions, reported CCTV News. > > > > These complementary “soft” and “hard” kill methods address targets at different ranges and threat levels, filling gaps in each other’s operational coverage, CCTV News said. > > > > Both systems are equipped with phased-array radar and infrared detection systems, and can interconnect via both wired and wireless links to enable real-time data sharing and precise target identification and engagement, according to the CCTV News report. > > > > The laser systems, as next-generation equipment, feature multi-source detection and intelligent identification, enabling rapid response and adaptive targeting. Integrated into a broader combat system, the platforms can coordinate “soft” and “hard” kill methods and link with radar and electro-optical sensors to form a rapid “detect-to-destroy” chain, Zhou Shuiliang from the Aviation Industry Corporation of China was quoted by the CCTV as saying. > > > > Previously, multiple types of anti-drone equipment were reviewed in formations at China’s V-Day military parade on September 3, 2025 to mark the 80th anniversary of the victory in the Chinese People’s War of Resistance Against Japanese Aggression and the World Anti-Fascist War, addressing the importance of anti-drone warfare on the modern battlefield. > > > > Anti-drone missile and artillery systems, high-energy laser weapons, and high-power microwave weapons reviewed at the parade are a powerful “iron triangle” that can both “soft kill” and “hard destroy” unmanned aerial vehicles. > > > > Given the widespread deployment of drones on the battlefield, countries are now prioritizing the development of efficient counter-drone systems and platforms, Wang Yunfei, a Chinese military affairs expert, told the Global Times. > > > > The inclusion of high-energy laser and high-power microwave counter-drone systems in the parade indicates that both have demonstrated strong performance in realistic training, and suggests that China’s laser- and microwave-based counter-drone technologies are at the forefront globally. > > > > Zhang Xuefeng, another Chinese military affairs expert, told the Global Times that high-energy laser weapons can quickly and accurately detect, aim, and track targets. Using high-energy lasers, it only takes a few seconds to shoot a drone down. > > > > “This genre of anti-drone systems has high accuracy, minimal collateral damage, the advantage of unlimited ammunition, and very low operating costs, making it the lowest cost anti-drone equipment in a single deployment,” Zhang said.
Agenzia Nova: Cina-Giappone: Pechino ha organizzato pattugliamento attorno alle Isole Senkaku (3)
19 mar 07:54 - (Agenzia Nova) - La crisi sino-giapponese per la sovranita' dell'isola raggiunse un picco nel 2012, anno in cui Tokyo acquisto'... (Cip)
China-Japan: Beijing has organized patrols around the Senkaku Islands (3)
19 mar 07:54 - (Agenzia Nova) - The Sino-Japanese crisis over the sovereignty of the island reached a peak in 2012, the year in which Tokyo purchased... (Cip)
#China #Japan #Beijing #SenkakuIslands #AgenziaNova #Sino-Japanese #Tokyo
Agenzia Nova: Mar Cinese Orientale: Cina allontana peschereccio giapponese al largo delle Isole Senkaku (3)
18 mar 06:32 - (Agenzia Nova) - La crisi sino-giapponese per la sovranita' dell'isola raggiunse un picco nel 2012, anno in cui Tokyo acquisto'... (Cip)
East China Sea: China moves Japanese fishing vessel away from the Senkaku Islands (3)
18 Mar 06:32 - (Agenzia Nova) - The Sino-Japanese crisis over the sovereignty of the island reached a peak in 2012, the year in which Tokyo purchased... (Cip)
#EastChinaSea #China #Japanese #theSenkakuIslands #AgenziaNova #Sino-Japanese #Tokyo
Chinese physicists create elusive 'hexagonal diamond' that's harder than natural diamond
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