New Brazil Law Restricts Use of Smartphones in Elementary and High Schools

Brazil's President Luiz Inácio Lula da Silva speaks at a ceremony for the signing of a bill that restricts the use of cellphones in schools nationwide, at the Planalto Palace, in Brasilia, Brazil, Monday, Jan. 13, 2025. (AP)
Brazil's President Luiz Inácio Lula da Silva speaks at a ceremony for the signing of a bill that restricts the use of cellphones in schools nationwide, at the Planalto Palace, in Brasilia, Brazil, Monday, Jan. 13, 2025. (AP)
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New Brazil Law Restricts Use of Smartphones in Elementary and High Schools

Brazil's President Luiz Inácio Lula da Silva speaks at a ceremony for the signing of a bill that restricts the use of cellphones in schools nationwide, at the Planalto Palace, in Brasilia, Brazil, Monday, Jan. 13, 2025. (AP)
Brazil's President Luiz Inácio Lula da Silva speaks at a ceremony for the signing of a bill that restricts the use of cellphones in schools nationwide, at the Planalto Palace, in Brasilia, Brazil, Monday, Jan. 13, 2025. (AP)

Brazil's President Luiz Inácio Lula da Silva on Monday signed a bill restricting the use of smartphones at school, following a global trend for such limitations.

The move will impact students at elementary and high schools across the South American nation starting in February. It provides a legal framework to ensure students only use such devices in cases of emergency and danger, for educational purposes, or if they have disabilities and require them.

"We cannot allow humanism to be replaced by algorithms," Lula said in a closed ceremony at the presidential palace in the capital, Brasilia, adding that the bill "acknowledges the work of every serious person in education, everyone who wants to take care of children and teenagers in this country."

In May, Fundacao Getulio Vargas, a leading think-tank and university, said Brazil had more smartphones than people, with 258 million devices for a population of 203 million Brazilians. Local market researchers said last year that Brazilians spend 9 hours and 13 minutes per day on screens, one of the world's highest figures.

Education minister Camilo Santana told journalists that children are going online at early ages, making it harder for parents to keep track of what they do, and that restricting smartphones at school will help them.

The bill had rare support across the political spectrum, both from allies of leftist Lula and his far-right foe, former President Jair Bolsonaro.

Many parents and students also approved the move. A survey released in October by Brazilian pollster Datafolha said that almost two-thirds of respondents supported banning the use of smartphones by children and teenagers at schools. More than three-quarters said those devices do more harm than good to their children.

"(Restricting cellphones) is tough, but necessary. It is useful for them to do searches for school, but to use it socially isn't good," said Ricardo Martins Ramos, 43, father of two girls and the owner of a hamburger restaurant in Rio de Janeiro. "Kids will interact more."

His 13-year-old daughter Isabela said her classmates struggled to focus during class because of their smartphones. She approved the move, but doesn't see it as enough to improve the learning environment for everyone.

"When the teacher lets you use the cellphone, it is because he wants you to do searches," she said. "There's still a lot of things that schools can't solve, such as bullying and harassment."

As of 2023, about two-thirds of Brazilian schools imposed some restriction on cellphone use, while 28% banned them entirely, according to a survey released in August by the Brazilian Internet Steering Committee.

The Brazilian states of Rio de Janeiro, Maranhao and Goias have already passed local bills to ban such devices at schools. However, authorities have struggled to enforce these laws.

Authorities in Sao Paulo, the most populous state in Brazil, are discussing whether smartphones should be banned both in public and private schools.

Gabriele Alexandra Henriques Pinheiro, 25, works at a beauty parlor and is the mother of a boy diagnosed with autism spectrum disorder. She also agrees with the restrictions, but says adults will continue to be a bad example of smartphone use for children.

"It is tough," she said. "I try to restrict the time my son watches any screens, but whenever I have a task to perform I have to use the smartphone to be able to do it all," she said.

Institutions, governments, parents and others have for years associated smartphone use by children with bullying, suicidal ideation, anxiety and loss of concentration necessary for learning. China moved last year to limit children’s use of smartphones, while France has in place a ban on smartphones in schools for kids aged six to 15.

Cellphone bans have gained traction across the United States, where eight states have passed laws or policies that ban or restrict cellphone use to try to curb student phone access and minimize distractions in classrooms.

An increasing number of parents across Europe who are concerned by evidence that smartphone use among young kids jeopardizes their safety and mental health.

A report published in September by UNESCO, the United Nations Educational, Scientific and Cultural Organization, said one in four countries has already restricted the use of such devices at schools.

Last year in a US Senate hearing, Meta CEO Mark Zuckerberg apologized to parents of children exploited, bullied or driven to self-harm via social media. He also noted Meta’s continued investments in "industrywide" efforts to protect children.



New Process for Stable, Long-Lasting Batteries

The image shows a test cell used to fabricate and test the all-solid-state battery developed at PSI. (Paul Scherrer Institute PSI/Mahir Dzambegovic) 
The image shows a test cell used to fabricate and test the all-solid-state battery developed at PSI. (Paul Scherrer Institute PSI/Mahir Dzambegovic) 
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New Process for Stable, Long-Lasting Batteries

The image shows a test cell used to fabricate and test the all-solid-state battery developed at PSI. (Paul Scherrer Institute PSI/Mahir Dzambegovic) 
The image shows a test cell used to fabricate and test the all-solid-state battery developed at PSI. (Paul Scherrer Institute PSI/Mahir Dzambegovic) 

Researchers at the Paul Scherrer Institute PSI have achieved a breakthrough on the path to practical application of lithium metal all-solid-state batteries.

The team expects the next generation of batteries to store more energy, are safer to operate, and charge faster than conventional lithium-ion batteries.

The team has reported these results in the journal Advanced Science.

All-solid-state batteries are considered a promising solution for electromobility, mobile electronics, and stationary energy storage – in part because they do not require flammable liquid electrolytes and therefore are inherently safer than conventional lithium-ion batteries.

Two key problems, however, stand in the way of market readiness: On the one hand, the formation of lithium dendrites at the anode remains a critical point.

On the other hand, an electrochemical instability – at the interface between the lithium metal anode and the solid electrolyte – can impair the battery’s long-term performance and reliability.

To overcome these two obstacles, the team led by Mario El Kazzi, head of the Battery Materials and Diagnostics group at the Paul Scherrer Institute PSI, developed a new production process:

“We combined two approaches that, together, both densify the electrolyte and stabilize the interface with the lithium,” the scientist explained.

Central to the PSI study is the argyrodite type LPSCl, a sulphide-based solid electrolyte made of lithium, phosphorus, and sulphur. The mineral exhibits high lithium-ion conductivity, enabling rapid ion transport within the battery – a crucial prerequisite for high performance and efficient charging processes.

To densify argyrodite into a homogeneous electrolyte, El Kazzi and his team did incorporate the temperature factor, but in a more careful way: Instead of the classic sintering process, they chose a gentler approach in which the mineral was compressed under moderate pressure and at a moderate temperature of only about 80 degrees Celsius.

The result is a compact, dense microstructure resistant to the penetration of lithium dendrites. Already, in this form, the solid electrolyte is ideally suited for rapid lithium-ion transport.

To ensure reliable operation even at high current densities, such as those encountered during rapid charging and discharging, the all-solid-state cell required further modification.

For this purpose, a coating of lithium fluoride (LiF), only 65 nanometres thick, was evaporated under vacuum and applied uniformly to the lithium surface – serving as a ultra-thin passivation layer at the interface between the anode and the solid electrolyte.

In laboratory tests with button cells, the battery demonstrated extraordinary performance under demanding conditions.

“Its cycle stability at high voltage was remarkable,” said doctoral candidate Jinsong Zhang, lead author of the study.

After 1,500 charge and discharge cycles, the cell still retained approximately 75% of its original capacity.

This means that three-quarters of the lithium ions were still migrating from the cathode to the anode. “An outstanding result. These values are among the best reported to date.”

Zhang therefore sees a good chance that all-solid-state batteries could soon surpass conventional lithium-ion batteries with liquid electrolyte in terms of energy density and durability.

Thus El Kazzi and his team have demonstrated for the first time that the combination of solid electrolyte mild sintering and a thin passivation layer on lithium anode effectively suppresses both dendrite formation and interfacial instability.

This combined solution marks an important advance for all-solid-state battery research – not least because it offers ecological and economic advantages: Due to the low temperatures, the process saves energy and therefore costs.

“Our approach is a practical solution for the industrial production of argyrodite-based all-solid-state batteries,” said El Kazzi. “A few more adjustments – and we could get started.”


Meta Urges Australia to Change Teen Social Media Ban

Meta has called for Australia's social media for under-16s to target app stores. Saeed KHAN / AFP
Meta has called for Australia's social media for under-16s to target app stores. Saeed KHAN / AFP
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Meta Urges Australia to Change Teen Social Media Ban

Meta has called for Australia's social media for under-16s to target app stores. Saeed KHAN / AFP
Meta has called for Australia's social media for under-16s to target app stores. Saeed KHAN / AFP

Tech giant Meta urged Australia on Monday to rethink its world-first social media ban for under-16s, while reporting that it has blocked more than 544,000 accounts under the new law.

Australia has required big platforms including Meta, TikTok and YouTube to stop underage users from holding accounts since the legislation came into force on December 10 last year.

Companies face fines of Aus $49.5 million (US$33 million) if they fail to take "reasonable steps" to comply.

Billionaire Mark Zuckerberg's Meta said it had removed 331,000 underage accounts from Instagram, 173,000 from Facebook, and 40,000 from Threads in the week to December 11.

The company said it was committed to complying with the law.

"That said, we call on the Australian government to engage with industry constructively to find a better way forward, such as incentivizing all of industry to raise the standard in providing safe, privacy-preserving, age appropriate experiences online, instead of blanket bans," it said in statement.

Meta renewed an earlier call for app stores to be required to verify people's ages and get parental approval before under-16s can download an app.

This was the only way to avoid a "whack-a-mole" race to stop teens migrating to new apps to avoid the ban, the company said.

The government said it was holding social media companies to account for the harm they cause young Australians.

"Platforms like Meta collect a huge amount of data on their users for commercial purposes. They can and must use that information to comply with Australian law and ensure people under 16 are not on their platforms," a government spokesperson said.

Meta said parents and experts were worried about the ban isolating young people from online communities, and driving some to less regulated apps and darker corners of the internet.

Initial impacts of the legislation "suggest it is not meeting its objectives of increasing the safety and well-being of young Australians", it said.

While raising concern over the lack of an industry standard for determining age online, Meta said its compliance with the Australian law would be a "multilayered process".

Since the ban, the California-based firm said it had helped found the OpenAge Initiative, a non-profit group that has launched age-verification tools called AgeKeys to be used with participating platforms.


China Is Closing in on US Technology Lead Despite Constraints, AI Researchers Say

 Visitors look at robots on display at robotics company Unitree's first retail store in Beijing in January 9, 2026. (AFP)
Visitors look at robots on display at robotics company Unitree's first retail store in Beijing in January 9, 2026. (AFP)
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China Is Closing in on US Technology Lead Despite Constraints, AI Researchers Say

 Visitors look at robots on display at robotics company Unitree's first retail store in Beijing in January 9, 2026. (AFP)
Visitors look at robots on display at robotics company Unitree's first retail store in Beijing in January 9, 2026. (AFP)

China can narrow its technological gap with the US driven by growing risk-taking and innovation, though the lack of advanced chipmaking tools is hobbling the sector, the country's leading artificial intelligence researchers said on Saturday.

China's so-called "AI tiger" startups MiniMax and Zhipu AI had strong debuts on the Hong Kong Stock Exchange this week, reflecting growing confidence in the sector as Beijing fast-tracks AI and chip listings to bolster domestic alternatives to advanced US technology.

Yao Shunyu, a former senior researcher at ChatGPT maker OpenAI ‌who was named ‌technology giant Tencent's chief AI scientist in December, ‌said ⁠there was a ‌high likelihood of a Chinese firm becoming the world's leading AI company in the next three to five years but said the lack of advanced chipmaking machines was the main technical hurdle.

"Currently, we have a significant advantage in electricity and infrastructure. The main bottlenecks are production capacity, including lithography machines, and the software ecosystem," Yao said at an AI conference in Beijing.

China has completed a working prototype of an extreme-ultraviolet lithography ⁠machine potentially capable of producing cutting-edge semiconductor chips that rival the West's, Reuters reported last month. However, the ‌machine has not yet produced working chips and may ‍not do so until 2030, people with ‍knowledge of the matter told Reuters.

MIND THE INVESTMENT GAP

Yao and other ‍Chinese industry leaders at the Beijing conference on Saturday also acknowledged that the US maintains an advantage in computing power due to its hefty investments in infrastructure.

"The US computer infrastructure is likely one to two orders of magnitude larger than ours. But I see that whether it's OpenAI or other platforms, they're investing heavily in next-generation research," said Lin Junyang, technical lead for Alibaba's flagship Qwen large language model.

"We, ⁠on the other hand, are relatively strapped for cash; delivery alone likely consumes the majority of our computer infrastructure," Lin said during a panel discussion at the AGI-Next Frontier Summit held by the Beijing Key Laboratory of Foundational Models at Tsinghua University.

Lin said China's limited resources have spurred its researchers to be innovative, particularly through algorithm-hardware co-design, which enables AI firms to run large models on smaller, inexpensive hardware.

Tang Jie, founder of Zhipu AI which raised HK$4.35 billion in its IPO, also highlighted the willingness of younger Chinese AI entrepreneurs to embrace high-risk ventures - a trait traditionally associated with Silicon Valley - as a positive development.

"I think if we can improve this environment, ‌allowing more time for these risk-taking, intelligent individuals to engage in innovative endeavors ... this is something our government and the country can help improve," said Tang.