Can Aircela's machine "create gasoline using little more than electricity and the air that we breathe"? Jalopnik reports... The Aircela machine works through a three-step process. It captures carbon dioxide directly from the air... The machine also traps water vapor, and uses electrolysis to break water down into hydrogen and oxygen... The oxygen is released, leaving hydrogen and carbon dioxide, the building blocks of hydrocarbons. This mixture then undergoes a process known as direct hydrogenation of carbon dioxide to methanol, as documented in scientific papers.

Methanol is a useful, though dangerous, racing fuel, but the engine under your hood won't run on it, so it must be converted to gasoline. ExxonMobil has been studying the process of doing exactly that since at least the 1970s. It's another well-established process, and the final step the Aircela machine performs before dispensing it through a built-in ordinary gas pump. So while creating gasoline out of thin air sounds like something only a wizard alchemist in Dungeons & Dragons can do, each step of this process is grounded in science, and combining the steps in this manner means it can, and does, really work.

Aircela does not, however, promise free gasoline for all. There are some limitations to this process. A machine the size of Aircela's produces just one gallon of gas per day... The machine can store up to 17 gallons, according to Popular Science, so if you don't drive very much, you can fill up your tank, eventually... While the Aircela website does not list a price for the machine, The Autopian reports it's targeting a price between $15,000 and $20,000, with hopes of dropping the price once mass production begins. While certainly less expensive than a traditional gas station, it's still a bit of an investment to begin producing your own fuel. If you live or work out in the middle of nowhere, however, it could be close to or less than the cost of bringing gas to you, or driving all your vehicles into a distant town to fill up. You're also not limited to buying just one machine, as the system is designed to scale up to produce as much fuel as you need.

The main reason why this process isn't "something for nothing" is that it takes twice as much electrical energy to produce energy in the form of gasoline. As Aircela told The Autopian " Aircela is targeting >50% end to end power efficiency. Since there is about 37kWh of energy in a gallon of gasoline we will require about 75kWh to make it. When we power our machines with standalone, off-grid, photovoltaic panels this will correspond to less than $1.50/gallon in energy cost."
Thanks to long-time Slashdot reader Quasar1999 for sharing the news.

Small modular nuclear reactors (or SMRs) are touted as "cheaper, safer, faster to build and easier to finance" than conventional nuclear reactors, reports CNN. Amazon has invested in X-Energy, and earlier this month, Meta announced a deal with Oklo, and in Michigan last month, Holtec began the long formal licensing process for two SMRs with America's Nuclear Regulatory Commission next to a nuclear plant it hopes to reactive. (And in 2024, California-based Kairos Power broke ground in Tennessee on a SMR "demo" reactor.)

But "The reality, as ever, is likely to be messier and experts are sounding notes of caution..." All the arguments in favor of SMRs overlook a fundamental issue, said Edwin Lyman, director of nuclear power safety at the Union of Concerned Scientists: They are too expensive. Despite all the money swilling around the sector, "it's still not enough," he told CNN. Nuclear power cannot compete on cost with alternatives, both fossil fuels and increasingly renewable energy, he said."

Some SMRs also have an issue with fuel. The more unconventional designs, those cooled by salt or gas, often require a special type of fuel called high-assay low-enriched uranium, known as HALEU (pronounced hay-loo). The amounts available are limited and the supply chain has been dominated by Russia, despite efforts to build up a domestic supply. It's a major risk, said Nick Touran [a nuclear engineer and independent consultant]. The biggest challenge nuclear has is competing with natural gas, he said, a "luxury, super expensive fuel may not be the best way." There is still stigma around nuclear waste, too. SMR companies say smaller reactors mean less nuclear waste, but 2022 research from Stanford University suggested some SMRs could actually generate more waste, in part because they are less fuel efficient...

As companies race to prove SMRs can meet the hype, experts appear to be divided in their thinking. For some, SMRs are an expensive — and potentially dangerous — distraction, with timelines that stretch so far into the future they cannot be a genuine answer to soaring needs for clean power right now.
Nuclear engineering/consultant Touran told CNN the small reactors are "a technological solution to a financial problem. No venture capitalists can say, like, 'oh, sure, we'll build a $30 billion plant.' But, if you're down into hundreds of millions, maybe they can do it."

This month saw results from a yearlong global study of "potential negative risks that generative AI poses to student". The study (by the Brookings Institution's Center for Universal Education) also suggests how to prevent risks and maximize benefits: After interviews, focus groups, and consultations with over 500 students, teachers, parents, education leaders, and technologists across 50 countries, a close review of over 400 studies, and a Delphi panel, we find that at this point in its trajectory, the risks of utilizing generative AI in children's education overshadow its benefits.
"At the top of Brookings' list of risks is the negative effect AI can have on children's cognitive growth," reports NPR — "how they learn new skills and perceive and solve problems." The report describes a kind of doom loop of AI dependence, where students increasingly off-load their own thinking onto the technology, leading to the kind of cognitive decline or atrophy more commonly associated with aging brains... As one student told the researchers, "It's easy. You don't need to (use) your brain." The report offers a surfeit of evidence to suggest that students who use generative AI are already seeing declines in content knowledge, critical thinking and even creativity. And this could have enormous consequences if these young people grow into adults without learning to think critically...

Survey responses revealed deep concern that use of AI, particularly chatbots, "is undermining students' emotional well-being, including their ability to form relationships, recover from setbacks, and maintain mental health," the report says. One of the many problems with kids' overuse of AI is that the technology is inherently sycophantic — it has been designed to reinforce users' beliefs... Winthrop offers an example of a child interacting with a chatbot, "complaining about your parents and saying, 'They want me to wash the dishes — this is so annoying. I hate my parents.' The chatbot will likely say, 'You're right. You're misunderstood. I'm so sorry. I understand you.' Versus a friend who would say, 'Dude, I wash the dishes all the time in my house. I don't know what you're complaining about. That's normal.' That right there is the problem."
AI did have some advantages, the article points out: The report says another benefit of AI is that it allows teachers to automate some tasks: "generating parent emails ... translating materials, creating worksheets, rubrics, quizzes, and lesson plans" — and more. The report cites multiple research studies that found important time-saving benefits for teachers, including one U.S. study that found that teachers who use AI save an average of nearly six hours a week and about six weeks over the course of a full school year...

AI can also help make classrooms more accessible for students with a wide range of learning disabilities, including dyslexia. But "AI can massively increase existing divides" too, [warns Rebecca Winthrop, one of the report's authors and a senior fellow at Brookings]. That's because the free AI tools that are most accessible to students and schools can also be the least reliable and least factually accurate... "[T]his is the first time in ed-tech history that schools will have to pay more for more accurate information. And that really hurts schools without a lot of resources."
The report calls for more research — and make several recommendations (including "holistic" learning and "AI tools that teach, not tell.") But this may be their most important recommendation. "Provide a clear vision for ethical AI use that centers human agency..."

"We find that AI has the potential to benefit or hinder students, depending on how it is used."

alternative_right shares a report from ScienceAlert: A systematic review of 85 studies has now found good reason to differentiate between 'active' sitting, like playing cards or reading, and 'passive' sitting, like watching TV. [...] "Total sitting time has been shown to be related to brain health; however, sitting is often treated as a single entity, without considering the specific type of activity," explains public health researcher Paul Gardiner from the University of Queensland in Australia. "Most people spend many hours sitting each day, so the type of sitting really matters ... These findings show that small everyday choices -- like reading instead of watching television -- may help keep your brain healthier as you age."

Across numerous studies, Gardiner and colleagues found that active sitting activities, like reading, playing card games, and using a computer, showed "overwhelmingly positive associations with cognitive health, enhancing cognitive functions such as executive function, situational memory, and working memory." Meanwhile, passive sitting was most consistently associated with negative cognitive outcomes, including increased risk of dementia. The study was published in the Journal of Alzheimer's Disease.

Researchers from the startup Overview Energy have successfully demonstrated beaming power from a moving airplane to the ground using near-infrared light. It marks the first step toward space-based solar power satellites that could someday transmit energy from orbit to existing solar farms on Earth. IEEE Spectrum reports: Overview's test transferred only a sprinkling of power, but it did it with the same components and techniques that the company plans to send to space. "Not only is it the first optical power beaming from a moving platform at any substantial range or power," says Overview CEO Marc Berte, "but also it's the first time anyone's really done a power beaming thing where it's all of the functional pieces all working together," he says. "It's the same methodology and function that we will take to space and scale up in the long term."

[...] Many researchers have settled on microwaves as their beam of choice for wireless power. But, in addition to the safety concerns about shooting such intense waves at the Earth, [Paul Jaffe, head of systems engineering] says there's another problem: microwaves are part of what he calls the "beachfront property" of the electromagnetic spectrum -- a range from 2 to 20 gigahertz that is set aside for many other applications, such as 5G cellular networks. "The fact is," Jaffe says, "if you somehow magically had a fully operational solar power satellite that used microwave power transmission in orbit today -- and a multi-kilometer-scale microwave power satellite receiver on the ground magically in place today -- you could not turn it on because the spectrum is not allocated to do this kind of transmission."

Instead, Overview plans to use less-dense, wide-field infrared waves. Existing utility-scale solar farms would be able to receive the beamed energy just like they receive the sun's energy during daylight hours. So "your receivers are already built," Berte says. The next major step is a prototype demonstrator for low Earth orbit, after which he hopes to have GEO satellites beaming megawatts of power by 2030 and gigawatts by later that decade. Plenty of doubts about the feasibility of space-based power abound. It is an exotic technology with much left to prove, including the ability to survive orbital debris and the exorbitant cost of launching the power stations. (Overview's satellite will be built on earth in a folded configuration and it will unfold after it's brought to orbit, according to the company). "Getting down the cost per unit mass for launch is a big deal," Jaffe says. "Then, it just becomes a question of increasing the specific power. A lot of the technologies we're working on at Overview are squarely focused on that."

Dell's CES 2026 product briefing, PC Gamer writes, stood out from the relentless AI-focused presentations that have dominated tech events for years, as the company explicitly chose to downplay its AI messaging when announcing a refreshed XPS laptop lineup, new ultraslim and entry-level Alienware laptops, Area-51 desktop refreshes and several monitors.

"One thing you'll notice is the message we delivered around our products was not AI-first," Dell head of product Kevin Terwilliger said during the presentation. "A bit of a shift from a year ago where we were all about the AI PC." The shift stems from Dell's observation that consumers simply aren't making purchasing decisions based on AI capabilities. "We're very focused on delivering upon the AI capabilities of a device -- in fact everything that we're announcing has an NPU in it -- but what we've learned over the course of this year, especially from a consumer perspective, is they're not buying based on AI," Terwilliger said. "In fact I think AI probably confuses them more than it helps them understand a specific outcome."

Vietnam will begin enforcing new online advertising rules in February 2026 that ban forced video ads longer than five seconds and must allow users to close ads with just one tap. "Furthermore, platforms must provide clear icons and instructions for users to report advertisements that violate the law, and allow them to opt out, turn off, or stop viewing inappropriate ads," reports a local news outlet (translated to English). "These reports must be received and processed promptly, and the results communicated to users as required." From the report: In cases where the entity posting the infringing advertisement cannot be identified or where specialized laws do not have specific regulations, the Ministry of Culture, Sports and Tourism is the focal agency to receive notifications and send requests to block or remove the advertisement to organizations and businesses providing online advertising services in Vietnam.

Advertisers, advertising service providers, and advertising transmission and distribution units are responsible for blocking and removing infringing advertisements within 24 hours of receiving a request from the competent authority. For advertisements that infringe on national security, the blocking and removal must be carried out immediately, no later than 24 hours.

In case of non-compliance, the Ministry of Culture, Sports and Tourism, in coordination with the Ministry of Public Security, will apply technical measures to block infringing advertisements and services and handle the matter according to the law. Telecommunications companies and Internet service providers must also implement technical measures to block access to infringing advertisements within 24 hours of receiving a request.

An anonymous reader quotes a report from 404 Media: Doublespeed, a startup backed by Andreessen Horowitz (a16z) that uses a phone farm to manage at least hundreds of AI-generated social media accounts and promote products has been hacked. The hack reveals what products the AI-generated accounts are promoting, often without the required disclosure that these are advertisements, and allowed the hacker to take control of more than 1,000 smartphones that power the company. The hacker, who asked for anonymity because he feared retaliation from the company, said he reported the vulnerability to Doublespeed on October 31. At the time of writing, the hacker said he still has access to the company's backend, including the phone farm itself.

"I could see the phones in use, which manager (the PCs controlling the phones) they had, which TikTok accounts they were assigned, proxies in use (and their passwords), and pending tasks. As well as the link to control devices for each manager," the hacker told me. "I could have used their phones for compute resources, or maybe spam. Even if they're just phones, there are around 1100 of them, with proxy access, for free. I think I could have used the linked accounts by puppeting the phones or adding tasks, but haven't tried."

As I reported in October, Doublespeed raised $1 million from a16z as part of its "Speedrun" accelerator program, "a fastpaced, 12-week startup program that guides founders through every critical stage of their growth." Doublespeed uses generative AI to flood social media with accounts and posts to promote certain products on behalf of its clients. Social media companies attempt to detect and remove this type of astroturfing for violating their inauthentic behavior policies, which is why Doublespeed uses a bank of phones to emulate the behavior of real users. So-called "click farms" or "phone farms" often use hundreds of mobile phones to fake online engagement of reviews for the same reason. [...] I've seen TikTok accounts operated by Doublespeed promote language learning apps, dating apps, a Bible app, supplements, and a massager.

An anonymous reader shares a report: Browser extensions with more than 8 million installs are harvesting complete and extended conversations from users' AI conversations and selling them for marketing purposes, according to data collected from the Google and Microsoft pages hosting them.

Security firm Koi discovered the eight extensions, which as of late Tuesday night remained available in both Google's and Microsoft's extension stores. Seven of them carry "Featured" badges, which are endorsements meant to signal that the companies have determined the extensions meet their quality standards. The free extensions provide functions such as VPN routing to safeguard online privacy and ad blocking for ad-free browsing. All provide assurances that user data remains anonymous and isnâ(TM)t shared for purposes other than their described use.

The conventional wisdom that English prose has gotten easier to read because sentences have gotten shorter is wrong, according to a new analysis published in Works in Progress by writer and Mercatus Center research fellow Henry Oliver. The real transformation happened centuries ago in the 1500s and 1600s when Bible translators like William Tyndale and Thomas Cranmer developed a "plain style" built on logical syntax rather than the older rhythmic, periodic structures inherited from medieval prose.

Oliver argues that much of what modern datasets measure as declining sentence length is actually just changing punctuation habits. Writers now use periods where earlier generations used colons and semicolons. One dataset shows semicolon usage dropped from one every 90 words in 1781 to one every 390 words today. The cognitive complexity of a paragraph often remains the same regardless of how it's punctuated. Even wildly popular modern books don't follow the "short sentences equal readable" formula. Oliver points to Onyx Storm, the 2025 fantasy novel that has sold tens of millions of copies, which opens with sentences of 24 and 30 words. The 30-word sentence has a subordinate clause twice as long as its main clause. The book reads easily not because sentences are short but because the language is plain and the syntax is logical.

Cisco's stock price touched $80.25 on Wednesday, finally eclipsing its dotcom-era peak of $80.06 set on March 27, 2000 -- when the networking giant briefly surpassed Microsoft to become the world's most valuable company. The journey back took 25 years, eight months and 13 days. The company's fundamentals improved dramatically over that period, of course. Revenues have nearly quintupled since 1999, profits have quadrupled, earnings per share have grown eightfold, and margins have remained healthy throughout. Investors who bought at the peak still lost money to inflation for a generation.

Cisco's trajectory draws obvious comparisons to Nvidia, today's dominant "picks and shovels" supplier for the AI boom. Nvidia trades at a price-to-earnings ratio above 45 and an enterprise value-to-sales ratio near 24. At its 2000 peak, Cisco traded at a P/E above 200 and EV/sales of 31.

As the battle over Warner Bros. Discovery grows, two Democratic lawmakers are warning that their party may try to block or unravel any acquisition by Paramount when it returns to power. Semafor: In a letter to the WBD board and Treasury Secretary Scott Bessent first shared with Semafor, Reps. Sam Liccardo (D-Calif.) and Ayanna Pressley (D-Mass.) said they were concerned about the national security risk of letting foreign entities control a large portion of the US entertainment and media industry.

They also hinted that a future Democratic Congress and administration could try to unravel any Paramount-WBD deal. "Future Congresses ... will review many of the decisions of the current Administration, and may recommend that regulators push for divestitures, which would undermine the strategic logic of this merger," they wrote. "We urge the Board to weigh these national security and regulatory liabilities in evaluating a transaction burdened by uncertain but potentially extensive mitigation obligations, foreign influence risks, or adverse regulatory action."