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Showing posts with label China. Show all posts
Showing posts with label China. Show all posts

Wednesday, July 2, 2025

Chinese researchers set new world record for flat-top pulsed magnetic field

 

Researchers perform an engineering test in Wuhan National High Magnetic Field Center at Huazhong University of Science and Technology in Wuhan, Central China's Hubei Province on February 8, 2025. Photo: VCG

A Chinese research team has set a new record for a flat-top pulsed magnetic field (FTPMF) with a whopping 71.36 tesla, further consolidating the nation's international leadership in this field.

The achievement made on Friday by the research team led by Li Liang, a professor from the Wuhan National High Magnetic Field Center at Huazhong University of Science and Technology, surpassed the research team's own previous world record of a 64-tesla FTPMF set in 2018, the Xinhua News Agency reported on Sunday, citing a statement from the university. 

High magnetic fields are among the most critical extreme conditions in modern scientific experiments, offering unique opportunities for discovering new phenomena and uncovering fundamental laws. 

Researchers worldwide have been highly active in conducting experiments under high magnetic field conditions, creating numerous original and significant breakthroughs in fields such as physics, chemistry, materials science and biology. 

Flat-top pulsed magnetic fields represent a cutting-edge direction in high magnetic field technology. With the combination of the advantages of both steady and pulsed magnetic fields, they deliver high magnetic strength with sustained stability, enabling unique experimental conditions for research such as nuclear magnetic resonance. 

To overcome challenges in magnet structural stability and precise control of high currents under strong electromagnetic forces, the research team has achieved breakthroughs in both materials and control systems. As a result, they set a new world record with a 71.36-tesla flat-top pulsed magnetic field featuring high stability (0.39 percent stability over 12.11 milliseconds), surpassing the current international level by 19 percent. 

Tesla is the unit of magnetic induction or magnetic flux density. One tesla is equivalent to 20,000 times the Earth's magnetic induction. The stronger the magnetic induction, the greater its potential in applications. 

The high pulsed magnetic field experimental facility is a major national scientific infrastructure project developed by Huazhong University of Science and Technology. It provides experimental environments featuring strong magnetic fields, ultra-low temperatures and high static pressure. 

To date, researchers from over 141 universities and research institutes across over 30 countries and have completed more than 2,000 projects at the Wuhan National High Magnetic Field Center, China News Service reported. 

Among the five key indicators of high pulsed magnetic field facilities, the Wuhan National High Magnetic Field Center ranks second in the world with a peak field strength of 94.88 tesla, and leads the world in terms of other key metrics such as flat-top magnetic field strength, pulse repetition rate, measurement precision and magnet lifespan, according to China News Service. - Global Times


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Tuesday, July 1, 2025

Of AI, calculators and learning maths

 


WHILE teaching mathematics in two countries, Malaysia and China, I have noticed that the way students master this subject is deeply influenced by their own educational culture and assessment systems.

Scientific calculators and artificial intelligence (AI) are now part and parcel of the learning process. However, the students’ approaches to using these tools are still firmly rooted in the foundational values shaped by their respective systems.

In Malaysia, the use of scientific calculators is a standard practice among students at the upper secondary level.

Students are allowed to use them for mathematics and additional mathematics papers in the SPM exams, especially for questions involving trigonometry, logarithms or statistical calculations.

They do speed up calculations and minimise errors, but overly relying on them can sometimes lead to weaker mastery of basic computational skills and reduced understanding of the core mathematical concepts.

Teaching foundation students at Xi’an International University in China under the Universiti Malaya (UM) offshore programme revealed a very different learning system.

Many students there had never used scientific calculators before.

As they were preparing to pursue their undergraduate studies at UM, I made them use the calculators during lectures and assessments.

They were hesitant at first, but I could see their excitement when they tried to use the device.

Nevertheless, most of them continued to solve problems, such as multiplication, square roots and trigonometric expressions, manually and did so with remarkable speed and precision.

This comfort with manual computation stemmed from their early training and a system that actively reinforces such skills.

One of the main reasons for this is China’s national university entrance exam, Gaokao. Known for its intensity and competitiveness, Gaokao strictly prohibits the use of calculators in the mathematics paper. This policy is intentional; it aims to assess a student’s genuine computational skills, ensure fairness across all regions and backgrounds, and encourage deep mastery of mathematical principles without relying on technology. As a result, Chinese students are trained from young to memorise formulas and solve problems manually.

The outcome is a generation of students who possess strong fundamental skills and a high level of confidence when tackling complex problems using logical and structured steps.

Despite these systemic differences, global developments continue to impact both countries. Students in Malaysia and China are now turning to Ai-powered apps such as CHATGPT, Deepseek, Symbolab, and Photomath, and are becoming increasingly dependent on Ai-generated solutions without fully engaging with the problem-solving process.

To address this, I apply a simple yet effective approach in my classroom. Students are required to answer the questions using their own reasoning first before they are allowed to check or verify their answers using AI.

This approach trains them to think critically, assess their own solutions, and compare them with the output provided by AI tools. It also builds confidence in their conceptual understanding.

What I find most encouraging is how students respond when their answers differ from the Ai-generated ones. On several occasions, I have heard them say confidently, “I think my answer is correct. The AI is wrong.” To me, this is a clear indicator of authentic learning.

These students are not simply replicating solutions; they have internalised the logic, are able to explain their reasoning, and are not afraid to challenge the authority of a machine when they believe in their own understanding.

I fully support the integration of AI as a learning tool, but I also believe that solving problems manually and conceptual mastery of the subject – in this case mathematics – must remain the foundation of education.

Technology should enhance students’ learning but not replace their ability to think.

FATIN NABILA ABD LATIFF Senior lecturer Mathematics Division Centre for Foundation Studies in Science Universiti Malaya

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Monday, June 16, 2025

Over half of Australians believe China will be most powerful country by 2035: poll

 

Photo: screenshot from the Lowy Institute Poll


A new Australian poll has found that more than half of Australians (56%) believe China will be the most powerful country in ten years, while only about a quarter (27%) say the same of the US, noting "attitudes toward China improved incrementally, but caution remains." 

Similarly, more believe China (58%) will lead technologically in ten years compared to the US (12%), according to Lowy Institute Poll 2025 Report published on Monday

This reflected a positive shift on Australian perceptions of China with growing number of Australians gaining firsthand exposure to China's realities, a Chinese expert commented on Monday. The expert hopes in developing bilateral ties, Canberra would not be hijacked by external forces, stressing "the common ground far outweighs differences, and bilateral relations must be defined by cooperation, not divisions."

Attitudes towards China improved incrementally, but caution remains, the Australian institute said in the summary of the poll. The poll reports the results of a nationally representative survey of 2117 adult Australian residents, conducted between 3 and 16 March. 

For the first time since 2020, Australians were just as likely to see China as an economic partner than as a security threat - though a clear majority (69%) continue to think it likely China will become a "military threat" to Australia in the next 20 years, according to the poll.

About half think Australia should cooperate more with China on climate change (49%). Views on economic engagement are mixed — a plurality (43%) say Australia should be trading at about the same level as now, whereas about half (49%) say Australia should be attracting less investment from China, shows the poll.

Regarding Australia's relationships with the superpowers, a bare majority continue to say the US is more important to Australia (52%), while a lower proportion prioritize China (43%), the poll shows.

Australian Prime Minister Anthony Albanese (45%) enjoyed a 20-point lead over Peter Dutton (25%) in Australians' confidence in him to manage the relationship with China, according to the poll.

"There's slightly more trust, slightly less threat perceptions, [but] it's still a pretty bleak picture for how Australians look at China," The Guardian quoted Ryan Neelam, the poll author and a director at the Lowy Institute, as saying.

Since the 2024 survey, the gap between Australians' trust in the US compared with China has more than halved, as perceptions of China continued to improve from their nadir in 2022, The Guardian reported, quoting Neelam.

Commenting over the poll results, Chen Hong, director of the Australian Studies Center at East China Normal University, told the Global Times on Monday that in previous years, under the influence of the then-ruling party's political maneuvers and the deliberate smear campaigns by certain anti-China forces in Australia's media landscape, public perceptions of China had been distorted and mired in so-called "China threat" narratives. This led to notably negative attitudes in polls, such as the Lowy Institute Poll 2022 Report.

However, facts speak louder than rhetoric, Chen continued. Recent years have seen growing number of Australians gaining firsthand exposure to China's realities, particularly after China's visa-waiver policy for Australians, Chen said.

"For instance, we've recently hosted multiple delegations from Australia and New Zealand, with more set to visit," Chen said, sharing his experience. "The latest poll reflects a more objective shift in public sentiment," Chen noted.

Yet while Australians increasingly recognize these truths, the persistence of a majority (69%) viewing China as a future "military threat" reveals the lingering impact of fabricated "China threat" narratives, Chen remarked. 

In addition, according the Australian poll, just over one in three Australians (36%) trusted the US to act responsibly in the world, a 20-point drop since last year and the lowest level on record since the Lowy Institute began polling in 2005.

Despite the sharp drop in trust towards the US, more than six in ten (63%) continue to think that the US would come to Australia's defense if it were attacked, and more Australians say the country should remain close to the US (57%) than those who think Australia should distance itself from its major ally (40%), said the poll.

Nevertheless, most Australians (68%) are pessimistic about the current US administration. Australians are evenly split on Washington's demand for US allies to spend more on defense, according to the poll.

Since the 2024 survey, the gap between Australians' trust in the US compared with China has more than halved, as perceptions of China continued to improve from their nadir in 2022, The Guardian reported, quoting Neelam.

According to The Guardian, Neelam said "That's quite remarkable for Australia's key security ally to have such a low level of trust." "The weight of expectation is that China will be more powerful and more predominant in the global system," he said.

Support for the AUKUS nuclear-powered submarine deal remained steady, with two-thirds of Australians (67%) in favor—roughly unchanged from 2022 (70%), shortly after AUKUS was announced.

As the US consistently prioritizes its own interests and national security, even at the expense of allies, a stance that has fueled growing public disillusionment in Australia, Chen pointed out.

But the expert, citing the poll showing 63% of Australians still believe the US would defend Australia if attacked, said this exposes a lingering, unrealistic idealization of American commitments.

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Tuesday, June 10, 2025

The more open the country, the more it will drive our progress: Ren Zhengfei speaks to People’s Daily

 

Ren Zhengfei photo

Recently, reporters from People's Daily (PD) engaged in face-to-face communication with Huawei CEO Ren Zhengfei (Ren) on various hot topics of public interest at the company's headquarters in Shenzhen, South China's Guangdong Province.

From this interaction, we genuinely felt the confidence of an entrepreneur who "unswervingly manages own affairs well."

'Moving forward step by step'

PD: Facing external blockades and suppression, with many difficulties, what goes through your mind?
Ren: I haven't thought about them; thinking is useless. Don't dwell on difficulties, just take action and move forward step by step.

PD: Huawei's Ascend chip has been "warned" about usage risks. What impact does this have on Huawei?
Ren:
 There are many companies in China making chips, and many are doing well; Huawei is just one of them. The US has exaggerated Huawei's achievements — the company isn't that powerful yet. We need to work hard to live up to their evaluation. Our single chips still lag behind the US by a generation. We use mathematics to compensate for physics, non-Moore's Law approaches to complement Moore's Law, and group computing to make up for single-chip limitations, which can also achieve practical results.

PD: If there are difficulties, what are the main ones?
Ren:
 When have there ever not been difficulties? Wasn't it difficult during the era of slash-and-burn farming? Wasn't it difficult in the Stone Age? When humans used stone tools, could they have imagined high-speed trains? China has opportunities in low- and mid-range chips, with dozens or even hundreds of chip companies working hard. 

The opportunities are even greater for compound semiconductors. For silicon-based chips, we use mathematics to compensate for physics, non-Moore's Law approaches to complement Moore's Law, and leverage cluster computing principles to meet our current needs. 

Software cannot be choked — it's built on mathematical graphic symbols, code, and advanced operators and algorithms, with no barriers. The difficulties lie in our education and building a talent pipeline. In the future, China will have hundreds or thousands of operating systems, supporting progress in Chinese industry, agriculture, healthcare, and more.

PD: There are many voices praising Huawei now, and the recognition of Huawei is very high.
Ren:
 When people say we're good, it puts a lot of pressure on us. A bit of criticism keeps us more clear-headed. We make products, and it's normal for people to criticize them when they use them. We allow criticism. As long as it's truthful, even if it's critical, we support it. Don't pay too much attention to either praise or criticism; focus on whether we can do our job well. If we do our job well, there's no problem.

PD: From your attitude toward difficulties and criticism, we sense you have a strong inner resolve, remaining unconcerned with praise or criticism and instead focusing on doing your own work well. This must be a key reason why Huawei has come this far.
Ren:
 There's still too much praise directed at us. People should pay more attention to understanding those engaged in theoretical research. Their work is profound and often underappreciated by the public, with contributions that may only be recognized after decades or even centuries. Baselessly criticizing them is detrimental to the country's long-term development. We must understand and support those doing theoretical work. We need to appreciate their vision; their great, quiet dedication is the hope of our nation. We shouldn't elevate one group while diminishing another; those engaged in theoretical research are the hope for our country's future.

'We must understand theoretical scientists with strategic patience'

PD: How to view basic theoretical research?
Ren: When our country has a certain economic strength, we must attach importance to theoretical research, especially basic theoretical research. Basic research takes more than five to 10 years; it generally requires 10 years, 20 years, or even longer. If we do not engage in basic research, it is akin to having no roots. Even if the leaves are lush and thriving, they will fall when the wind blows. Purchasing foreign products is expensive because the price includes their investment in basic research. Therefore, whether China engages in basic research or not, it will have to pay costs. The question is whether we can pay our own researchers engaged in basic research.

PD: Regarding basic research, people may not understand it and ask, "What is the purpose of this research? What benefits can it generate?" 
Ren:
 Scientific breakthroughs are understood by few people in the world. Those who do not understand should not evaluate them. Einstein's discovery that light rays can bend was confirmed a hundred years later. In Southwest China's Guizhou Province, there was an agronomist named Luo Dengyi. In the 1940s, when analyzing the nutritional components of fruits and vegetables, he discovered a wild fruit called thorn pear with extremely high vitamin content. At that time, China was still in the Chinese People's War of Resistance against Japanese Aggression, and the social education level was very low, so few people understood his research. Later, he wrote a paper stating that thorn pear was the "king of vitamin C." Nearly a hundred years later, Guizhou developed it into a natural vitamin-rich thorn pear beverage, a luxury in the vitamin beverage market, priced at nearly 100 yuan per bottle and highly sought after. The thorn pear industry has become a channel for farmers to lift out of poverty and become prosperous. Only then did people truly recognize Luo, who had been working at a broken desk amid the flames of war.

PD: Many research achievements seem insignificant at first, but they often prove extremely useful in the end. 
Ren:
 Theoretical scientists are lonely. We need to have strategic patience and understand them. Tu Youyou's work on artemisinin is a case in point. So is Huang Danian, who upheld the spirit of "exploration, innovation, and sincere dedication to the country." The symbols, formulas, and thoughts in their minds can only be communicated with by a few people in the world. We must respect theoretical scientists because we may not understand their field of expertise. Society should be tolerant, and the state should support them.

PD: Basic research has a long cycle, but enterprises need to focus on efficiency. 
Ren:
 We invest 180 billion yuan ($25.06 billion) in research and development each year, with approximately 60 billion yuan allocated to basic theoretical research, which is not subject to performance evaluation. About 120 billion yuan is invested in product research and development, which is subject to evaluation. Without theoretical support, there can be no breakthroughs, and we will not be able to catch up with the US.

PD: This reflects a long-term perspective. It is said that Huawei has a "Chaspark." 
Ren:
 Huang Danian was a great scientist. Our country became aware of him during the Gulf War. The US military had a pod under its helicopter that could detect weapons buried by Saddam in the desert and destroy them accurately at the start of the war. Further investigation revealed that this pod was developed by a Chinese person — Huang's mining survey pod developed during his time at a British university, which was used as a weapon by NATO. He resigned and returned to China to become a teacher at Jilin University. He used his own money to request a 40-square-meter room from the university, opened a "Chaspark," and provided free coffee, advocating "absorbing cosmic energy over a cup of coffee." With the authorization of his family, we established a non-profit online platform called "Chaspark," which provides free access to global scientific and technological information. At the same time, it opens inclusive cooperation mechanism for basic research, collaborating with major universities and colleges. These are all strategic investments that are not subject to performance evaluation. In terms of basic theory, we have established an internal mechanism. We don't know when results will be achieved, and we don't set requirements for scientists.

'Goal of socialism is to develop society'

PD: American economists such as Richard Wolff questioned why the US has failed to develop a modern high-speed rail system like China and argued that the real issue is profitability under capitalism, noting that since high-speed rail is "not profitable," the US doesn't have it. In contrast, Wolff pointed out that while it may also not be profitable in China, the country still built it - "because the government did it." None of these are inherently profitable, but they lay the foundation for a developed society, contributing to the modernization of industry and agriculture. They reflect the social value of state-owned enterprises. For competing products, China implements marketization - allowing market competition to realize their commercial value and generate tax revenue for the society. What's your view on this?

Ren: Why is it that only socialism can take on projects that is not profitable? One of the core purposes of socialism is to advance societal development. The socialist market economy system adopted in China is a remarkable feat. When it comes to infrastructure development, we can only follow the path of the socialist market economy - otherwise, large-scale projects like high-speed railways, expressways, and dams... simply could not be built.

PD: What's your insight for the development prospects of artificial intelligence (AI)?
Ren:
 AI may be the last technological revolution in human society, though there might also be nuclear fusion in the energy field. The development of AI will span decades and centuries. Don't worry. China also has many advantages.
 
PD: What's your view on these advantages?
Ren:
 China is home to hundreds of millions of youth, who are the future of the country. Xi Jinping, general secretary of the Communist Party of China (CPC) Central Committee, pointed out that the strength of a country or a nation is always underpinned by cultural prosperity. The critical technical requirement for AI lies in having ample power supply and a well-developed information network. Developing AI requires robust power guarantees. China excels in power generation and grid transmission, boasts the world's most advanced telecommunications network. The "east data, west computing" project is able to be realized.
 
PD: Any other advantages?
Ren: There's actually no need to worry about the chip issue. By leveraging methods such as superposition and clustering, computational results can match the most advanced global standards. In terms of software, thousands upon thousands of open-source software will meet the needs of the entire society in the future.

PD: How do you view China's future?
Ren: Thomas L. Friedman left our company and bought a second-class high-speed rail ticket to experience China. Later, he wrote an article titled, "I Just Saw the Future. It Was Not in America." 
 
PD: We've read that article, where he says "what makes China's manufacturing juggernaut so powerful today is not that it just makes things cheaper; it makes them cheaper, faster, better, smarter and increasingly infused with AI."
Ren: Fundamentally, algorithms are not in the hands of IT experts but in the hands of power experts, infrastructure experts, coal experts, medical experts, and various industry experts. From a practical perspective, Chinese manufacturing is adopting artificial intelligence very quickly, and it will give rise to many Chinese models. 
 
PD: What kind of support does the development of private enterprises need from the country?
Ren: A legalized and market-oriented environment where the government administers in accordance with laws and regulations. Enterprises should focus on value creation, technological breakthroughs, law-abiding operations, and tax compliance. This harmonious development model will gradually unleash economic vitality.
 
PD: How do you view openness and development?
Ren:
 The more open the country becomes, the more it will drive our progress. Under the leadership of the Party, with unified administration and clear policies, it is possible to gradually form a unified national market. This will surely break through all blockades and achieve great rejuvenation.


 
Photo: Screenshot from People's Daily

Photo: Screenshot from People's Daily
 

The article was originally published on the front page of the People's Daily on June 10, 2025 -By Hu Jian and Chen Jiaxing .
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Sunday, June 1, 2025

US will only harm itself: Chinese defense ministry slams US defense chief for hyping ‘China threat’ at Shangri-La Dialogue

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Zhang Xiaogang, a spokesperson for China's Ministry of National Defense Photo: Ministry of National Defense

Zhang Xiaogang, a spokesperson for China's Ministry of National Defense Photo: Ministry of National Defense


In response to the negative comments by US defense secretary on China at the 22nd Shangri-La Dialogue, which exaggerated the "China threat" narrative, Zhang Xiaogang, a spokesperson for China's Ministry of National Defense, stated on Sunday that the US is accustomed to creating disputes, inciting confrontation, and pursuing selfish interests at the Shangri-La Dialogue. The remarks made by the US defense secretary were filled with deeply ingrained hegemonic logic, bullying behavior, and Cold War mentality. They seriously provoke China's sovereignty and interests, distort China's policy positions, and grossly disregard the joint efforts of regional countries to maintain prosperity and stability, Zhang said. This stance of the US is in serious deviation from the common aspiration of countries around the world for peace and development. We express strong dissatisfaction and resolute opposition to this, Zhang said, according to a statement released on the WeChat account of China's Ministry of National Defense on Sunday.

Zhang stated that the US's actions are evident to the international community. Driven by selfish interests, the US has initiated tariff and trade wars, imposing exorbitant levies globally. It has formed exclusionary cliques and engaged in bloc confrontations, raising deep concerns among various countries, said Zhang. It has strengthened military deployments in the Asia-Pacific region, grossly intervened in the internal affairs of other countries, and incited tensions. The facts repeatedly prove that the US is going against the tide of the times and acting unilaterally, which will only backfire on the US itself, Zhang said.

The Taiwan question is purely China's internal affairs, and the US has no right to make irresponsible remarks or to attempt using this as a bargaining chip to contain China. The Chinese People's Liberation Army will resolutely defend national sovereignty and territorial integrity, and will firmly crush any "Taiwan independence" separatist schemes and any external interference. Our determination is unwavering, and our capabilities and means are strong and reliable, said Zhang.

The spokesperson noted that the South China Sea is internationally recognized as one of the busiest and safest shipping routes. He stated that China will persist in resolving differences through dialogue and consultation with relevant countries, uphold territorial sovereignty and maritime rights in accordance with the law, and collaborate with regional countries to build a sea of peace, friendship, and cooperation. The US is bent on sowing chaos in the South China Sea by forming alliances and stirring up trouble, which poses the greatest threat to regional peace and stability, Zhang said.

China has always been a guardian and promoter of peace and development in the Asia-Pacific region. The Chinese military will work together with regional countries to jointly oppose hegemonism that harms the Asia-Pacific, to oppose the introduction of geopolitical conflicts into the Asia-Pacific, and resist any country or force creating chaos. Zhang affirmed that China will actively implement the concept of a community with a shared future for mankind and the "three global initiatives," working together to maintain long-term peace, stability, and prosperity in the Asia-Pacific.- Global Times

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