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Aujourd’hui — 17 mai 2024Actualités numériques

Arizona Woman Accused of Helping North Koreans Get Remote IT Jobs At 300 Companies

Par : BeauHD
17 mai 2024 à 13:00
An anonymous reader quotes a report from Ars Technica: An Arizona woman has been accused of helping generate millions of dollars for North Korea's ballistic missile program by helping citizens of that country land IT jobs at US-based Fortune 500 companies. Christina Marie Chapman, 49, of Litchfield Park, Arizona, raised $6.8 million in the scheme, federal prosecutors said in an indictment unsealed Thursday. Chapman allegedly funneled the money to North Korea's Munitions Industry Department, which is involved in key aspects of North Korea's weapons program, including its development of ballistic missiles. Part of the alleged scheme involved Chapman and co-conspirators compromising the identities of more than 60 people living in the US and using their personal information to get North Koreans IT jobs across more than 300 US companies. As another part of the alleged conspiracy, Chapman operated a "laptop farm" at one of her residences to give the employers the impression the North Korean IT staffers were working from within the US; the laptops were issued by the employers. By using proxies and VPNs, the overseas workers appeared to be connecting from US-based IP addresses. Chapman also received employees' paychecks at her home, prosecutors said. Federal prosecutors said that Chapman and three North Korean IT workers -- using the aliases of Jiho Han, Chunji Jin, Haoran Xu, and others -- had been working since at least 2020 to plan a remote-work scheme. In March of that year, prosecutors said, an individual messaged Chapman on LinkedIn and invited her to "be the US face" of their company. From August to November of 2022, the North Korean IT workers allegedly amassed guides and other information online designed to coach North Koreans on how to write effective cover letters and resumes and falsify US Permanent Resident Cards. Under the alleged scheme, the foreign workers developed "fictitious personas and online profiles to match the job requirements" and submitted fake documents to the Homeland Security Department as part of an employment eligibility check. Chapman also allegedly discussed with co-conspirators about transferring the money earned from their work. Chapman was arrested Wednesday. It wasn't immediately known when she or Didenko were scheduled to make their first appearance in court. If convicted, Chapman faces 97.5 years in prison, and Didenko faces up to 67.5 years.

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Germany's Sovereign Tech Fund Now Supporting FFmpeg

Par : BeauHD
17 mai 2024 à 07:00
Michael Larabel reports via Phoronix: Following Germany's Sovereign Tech Fund providing significant funding for GNOME, Rust Coreutils, PHP, a systemd bug bounty, and numerous other free software projects, the FFmpeg multimedia library is the latest beneficiary to this funding from the Germany government. The Sovereign Tech Fund notes that the FFmpeg project is receiving 157,580 euros for 2024 and 2025. An announcement on the FFmpeg.org project site notes: "The FFmpeg community is excited to announce that Germany's Sovereign Tech Fund has become its first governmental sponsor. Their support will help sustain the [maintenance] of the FFmpeg project, a critical open-source software multimedia component essential to bringing audio and video to billions around the world everyday."

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Archie, the Internet's First Search Engine, Is Rescued and Running

Par : BeauHD
17 mai 2024 à 03:30
An anonymous reader quotes a report from Ars Technica: It's amazing, and a little sad, to think that something created in 1989 that changed how people used and viewed the then-nascent Internet had nearly vanished by 2024. Nearly, that is, because the dogged researchers and enthusiasts at The Serial Port channel on YouTube have found what is likely the last existing copy of Archie. Archie, first crafted by Alan Emtage while a student at McGill University in Montreal, Quebec, allowed for the searching of various "anonymous" FTP servers around what was then a very small web of universities, researchers, and government and military nodes. It was groundbreaking; it was the first echo of the "anything, anywhere" Internet to come. And when The Serial Port went looking, it very much did not exist. While Archie would eventually be supplanted by Gopher, web portals, and search engines, it remains a useful way to index FTP sites and certainly should be preserved. The Serial Port did this, and the road to get there is remarkable and intriguing. You are best off watching the video of their rescue, along with its explanatory preamble. But I present here some notable bits of the tale, perhaps to tempt you into digging further.

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NetBSD Bans AI-Generated Code

Par : BeauHD
17 mai 2024 à 02:02
Seven Spirals writes: NetBSD committers are now banned from using any AI-generated code from ChatGPT, CoPilot, or other AI tools. Time will tell how this plays out with both their users and core team. "If you commit code that was not written by yourself, double check that the license on that code permits import into the NetBSD source repository, and permits free distribution," reads NetBSD's updated commit guidelines. "Check with the author(s) of the code, make sure that they were the sole author of the code and verify with them that they did not copy any other code. Code generated by a large language model or similar technology, such as GitHub/Microsoft's Copilot, OpenAI's ChatGPT, or Facebook/Meta's Code Llama, is presumed to be tainted code, and must not be committed without prior written approval by core."

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In a Milestone, the US Exceeds 5 Million Solar Installations

Par : BeauHD
17 mai 2024 à 01:25
According to the Solar Energy Industries Association (SEIA), the U.S. has officially surpassed 5 million solar installations. "The 5 million milestone comes just eight years after the U.S. achieved its first million in 2016 -- a stark contrast to the four decades it took to reach that initial milestone since the first grid-connected solar project in 1973," reports Electrek. From the report: Since the beginning of 2020, more than half of all U.S. solar installations have come online, and over 25% have been activated since the Inflation Reduction Act became law 20 months ago. Solar arrays have been installed on homes and businesses and as utility-scale solar farms. The U.S. solar market was valued at $51 billion in 2023. Even with changes in state policies, market trends indicate robust growth in solar installations across the U.S. According to SEIA forecasts, the number of solar installations is expected to double to 10 million by 2030 and triple to 15 million by 2034. The residential sector represents 97% of all U.S. solar installations. This sector has consistently set new records for annual installations over the past several years, achieving new highs for five straight years and in 10 out of the last 12 years. The significant growth in residential solar can be attributed to its proven value as an investment for homeowners who wish to manage their energy costs more effectively. California is the frontrunner with 2 million solar installations, though recent state policies have significantly damaged its rooftop solar market. Meanwhile, other states are experiencing rapid growth. For example, Illinois, which had only 2,500 solar installations in 2017, now boasts over 87,000. Similarly, Florida has seen its solar installations surge from 22,000 in 2017 to 235,000 today. By 2030, 22 states or territories are anticipated to surpass 100,000 solar installations. The U.S. has enough solar installed to cover every residential rooftop in the Four Corners states of Colorado, Utah, Arizona, and New Mexico.

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Winamp Is 'Opening Up' Its Source Code

Par : BeauHD
17 mai 2024 à 00:45
In a press release today, the best music player of the 1990s announced that it'll open up its source code to developers worldwide. "Winamp will open up its code for the player used on Windows, enabling the entire community to participate in its development," said the company. "This is an invitation to global collaboration, where developers worldwide can contribute their expertise, ideas, and passion to help this iconic software evolve." Alexandre Saboundjian, CEO of Winamp, explains: "This is a decision that will delight millions of users around the world. Our focus will be on new mobile players and other platforms. We will be releasing a new mobile player at the beginning of July. Still, we don't want to forget the tens of millions of users who use the software on Windows and will benefit from thousands of developers' experience and creativity. Winamp will remain the owner of the software and will decide on the innovations made in the official version."

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Reddit Reintroduces Its Awards System

Par : BeauHD
16 mai 2024 à 23:20
After shutting down its awards system last July, Reddit announced that it is bringing it back, with much of the same and some new features. There'll be "a new design for awards, a new award button under eligible posts and a leaderboard showing top awards earned for a comment or a post," reports TechCrunch. From the report: The company sunset its awards program last year along with the ability for users to purchase coins. At the same time, Reddit introduced "Golden Upvotes," which were purchased directly through cash. In a new post, the company said the system wasn't as expressive as awards. "While the golden upvote was certainly simpler in theory, in practice, it missed the mark. It wasn't as fun or expressive as legacy awards, and it was unclear how it benefited the recipient," the social network said. Users who want to give awards to posts and comments will need to buy "gold," which kind of replaces coins. On a support page, the company mentioned that, on average, awards cost anywhere between 15 to 50 gold. Gold packages in Reddit's mobile apps currently start at $1.99 for 100 gold. Users can buy as much as 2,750 gold for $49.99. The company is also adding some safeguards to the awards system, such as disabling awards in NSFW subreddits, trauma and addiction support subreddits, and subreddits with mature content. Additionally, users will be able to report awards to avoid them being used for moderator removals.

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Hier — 16 mai 2024Actualités numériques

Another Billionaire Pushes a Bid For TikTok, But To Decentralize It

Par : BeauHD
16 mai 2024 à 22:02
An anonymous reader quotes a report from Techdirt, written by Mike Masnick: If you're a fan of chaos, well, the TikTok ban situation is providing plenty of chaos to follow. Ever since the US government made it clear it was seriously going to move forward with the obviously unconstitutional and counterproductive plan to force ByteDance to divest from TikTok or have the app effectively banned from the U.S., various rich people have been stepping up with promises to buy the app. There was former Trump Treasury Secretary Steven Mnuchin with plans to buy it. Then there was "mean TV investor, who wants you to forget his sketchy history" Kevin O'Leary with his own TikTok buyout plans. I'm sure there have been other rich dudes as well, though strikingly few stories of actual companies interested in purchasing TikTok. But now there's another billionaire to add to the pile: billionaire real estate/property mogul Frank McCourt (who has had some scandals in his own history) has had an interesting second act over the last few years as a big believer in decentralized social media. He created and funded Project Liberty, which has become deeply involved in a number of efforts to create infrastructure for decentralized social media, including its own Decentralized Social Networking Protocol (DSTP). Over the past few years, I've had a few conversations with people involved in Project Liberty and related projects. Their hearts are in the right place in wanting to rethink the internet in a manner that empowers users over big companies, even if I don't always agree with their approach (he also frequently seems to surround himself with all sorts of tech haters, who have somewhat unrealistic visions of the world). Either way, McCourt and Project Liberty have now announced a plan to bid on TikTok. They plan to merge it into his decentralization plans. "Frank McCourt, Founder of Project Liberty and Executive Chairman of McCourt Global, today announced that Project Liberty is organizing a bid to acquire the popular social media platform TikTok in the U.S., with the goal of placing people and data empowerment at the center of the platform's design and purpose," reads a press release from Project Liberty. "Working in consultation with Guggenheim Securities, the investment banking and capital markets business of Guggenheim Partners, and Kirkland & Ellis, one of the world's largest law firms, as well as world-renowned technologists, academics, community leaders, parents and engaged citizens, this bid for TikTok offers an innovative, alternative vision for the platform's infrastructure -- one that allows people to reclaim agency over their digital identities and data by proposing to migrate the platform to a new digital open-source protocol. In launching the bid, McCourt and his partners are seizing this opportunity to return control and value back into the hands of individuals and provide Americans with a meaningful voice, choice, and stake in the future of the web."

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Hugging Face Is Sharing $10 Million Worth of Compute To Help Beat the Big AI Companies

Par : BeauHD
16 mai 2024 à 21:20
Kylie Robison reports via The Verge: Hugging Face, one of the biggest names in machine learning, is committing $10 million in free shared GPUs to help developers create new AI technologies. The goal is to help small developers, academics, and startups counter the centralization of AI advancements. [...] Delangue is concerned about AI startups' ability to compete with the tech giants. Most significant advancements in artificial intelligence -- like GPT-4, the algorithms behind Google Search, and Tesla's Full Self-Driving system -- remain hidden within the confines of major tech companies. Not only are these corporations financially incentivized to keep their models proprietary, but with billions of dollars at their disposal for computational resources, they can compound those gains and race ahead of competitors, making it impossible for startups to keep up. Hugging Face aims to make state-of-the-art AI technologies accessible to everyone, not just the tech giants. [...] Access to compute poses a significant challenge to constructing large language models, often favoring companies like OpenAI and Anthropic, which secure deals with cloud providers for substantial computing resources. Hugging Face aims to level the playing field by donating these shared GPUs to the community through a new program called ZeroGPU. The shared GPUs are accessible to multiple users or applications concurrently, eliminating the need for each user or application to have a dedicated GPU. ZeroGPU will be available via Hugging Face's Spaces, a hosting platform for publishing apps, which has over 300,000 AI demos created so far on CPU or paid GPU, according to the company. Access to the shared GPUs is determined by usage, so if a portion of the GPU capacity is not actively utilized, that capacity becomes available for use by someone else. This makes them cost-effective, energy-efficient, and ideal for community-wide utilization. ZeroGPU uses Nvidia A100 GPU devices to power this operation -- which offer about half the computation speed of the popular and more expensive H100s. "It's very difficult to get enough GPUs from the main cloud providers, and the way to get them -- which is creating a high barrier to entry -- is to commit on very big numbers for long periods of times," Delangue said. Typically, a company would commit to a cloud provider like Amazon Web Services for one or more years to secure GPU resources. This arrangement disadvantages small companies, indie developers, and academics who build on a small scale and can't predict if their projects will gain traction. Regardless of usage, they still have to pay for the GPUs. "It's also a prediction nightmare to know how many GPUs and what kind of budget you need," Delangue said.

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Palo Alto Networks Is Buying Security Assets From IBM

Par : BeauHD
16 mai 2024 à 20:40
Palo Alto Networks is acquiring IBM's QRadar cloud software and migrating customers to its Cortex Xsiam platform as part of a broader partnership aimed at expanding its consulting capabilities and customer base. The sum of the deal was not disclosed. CNBC reports: The move normally takes one to three months, Nikesh Arora, Palo Alto's CEO, told CNBC. Also, IBM will train more than 1,000 of its consulting employees on Palo Alto's products. [...] For IBM, a more robust lineup of contemporary security tools for consulting might help the company deliver on its stated goal of revenue growth in the mid-single digits for 2024. In the first quarter, revenue increased 3%, with a 2% bump in the consulting segment. Palo Alto is growing much faster than IBM. In the January quarter, revenue jumped 19%. The company will report results for the latest quarter on Monday. Palo Alto more than doubled in value last year and its stock is up 6% year to date, lifting the company's market cap past $100 billion. The stock rose more than 1% in extended trading. IBM is up close to 5% this year and is now valued at $154 billion. The companies said the transaction should close by the end of September, subject to regulatory approval and other conditions. [...] IBM will continue to sell its QRadar software for use in on-premises data centers. At the same time, IBM will suggest that clients using it consider switching to Palo Alto's Cortex Xsiam.

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EU Opens Child Safety Probes of Facebook and Instagram, Citing Addictive Design Concerns

Par : BeauHD
16 mai 2024 à 20:06
An anonymous reader quotes a report from TechCrunch: Facebook and Instagram are under formal investigation in the European Union over child protection concerns, the Commission announced Thursday. The proceedings follow a raft of requests for information to parent entity Meta since the bloc's online governance regime, the Digital Services Act (DSA), started applying last August. The development could be significant as the formal proceedings unlock additional investigatory powers for EU enforcers, such as the ability to conduct office inspections or apply interim measures. Penalties for any confirmed breaches of the DSA could reach up to 6% of Meta's global annual turnover. Meta's two social networks are designated as very large online platforms (VLOPs) under the DSA. This means the company faces an extra set of rules -- overseen by the EU directly -- requiring it to assess and mitigate systemic risks on Facebook and Instagram, including in areas like minors' mental health. In a briefing with journalists, senior Commission officials said they suspect Meta of failing to properly assess and mitigate risks affecting children. They particularly highlighted concerns about addictive design on its social networks, and what they referred to as a "rabbit hole effect," where a minor watching one video may be pushed to view more similar content as a result of the platforms' algorithmic content recommendation engines. Commission officials gave examples of depression content, or content that promotes an unhealthy body image, as types of content that could have negative impacts on minors' mental health. They are also concerned that the age assurance methods Meta uses may be too easy for kids to circumvent. "One of the underlying questions of all of these grievances is how can we be sure who accesses the service and how effective are the age gates -- particularly for avoiding that underage users access the service," said a senior Commission official briefing press today on background. "This is part of our investigation now to check the effectiveness of the measures that Meta has put in place in this regard as well." In all, the EU suspects Meta of infringing DSA Articles 28, 34, and 35. The Commission will now carry out an in-depth investigation of the two platforms' approach to child protection.

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Airbus Unveils Half-Plane, Half-Copter In Quest For Speed

Par : BeauHD
16 mai 2024 à 13:00
An anonymous reader quotes a report from The Verge: Airbus Helicopters showcased an experimental half-plane, half-helicopter on Wednesday in a quest for speed as competition heats up to define the rotorcraft of the future. The $217 million Racer is a one-off demonstrator model combining traditional overhead rotors with two forward-facing propellors in a bid to combine stability and speed, shortening response times for critical missions like search-and-rescue. "There are missions where the quickest possible access to the zone is vital. We often talk about the 'golden hour'," Airbus Helicopters CEO Bruno Even told Reuters, referring to the window considered most critical for providing medical attention. Such designs could also be offered for military developments as NATO conducts a major study into next-generation helicraft, though much depends on how its planners define future needs. [...] Racer's public debut came months after Italy's Leonardo and U.S. manufacturer Bell agreed to co-operate on the next generation of tilt-rotor technology, which replaces a helicopter's trademark overhead blades altogether. Leonardo is also leading a separate project to develop the next generation of tilt-rotors for civil use. Its AW609 is the sole existing civil design, but has yet to be certified. Proponents of the tilt-rotor, which relies on swiveling side-mounted rotors 90 degrees to go up and then forwards, say it permits higher speed and range that are suited to military missions. Critics say the tilt mechanism reaches higher speeds only at the expense of higher complexity and maintenance costs. Airbus said the Racer will fly at 220 knots (400 km/hour) compared with traditional helicopter speeds closer to 140 knots. Bell says its V-280 Valor tilt-rotor design, recently picked by the Pentagon, will reach a cruise speed of 280 knots. Watch: Racer - Inside the high speed demonstrator (YouTube)

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AT&T Goes Up Against T-Mobile, Starlink With AST SpaceMobile Satellite Deal

Par : BeauHD
16 mai 2024 à 10:00
Michael Kan reports via PCMag: AT&T has struck a deal to bring satellite internet connectivity to phones through AST SpaceMobile, a potential rival to SpaceX's Starlink. AT&T says the commercial agreement will last until 2030. The goal is "to provide a space-based broadband network to everyday cell phones," a spokesperson tells PCMag, meaning customers can receive a cellular signal in remote areas where traditional cell towers are few and far between. All they'll need to do is ensure their phone has a clear view of the sky. AT&T has been working with Texas-based AST SpaceMobile since 2018 on the technology, which involves using satellites in space as orbiting cell towers. In January, AT&T was one of several companies (including Google) to invest $110 million in AST. In addition, the carrier created a commercial starring actor Ben Stiller to showcase AST's technology. In today's announcement, AT&T notes that "previously, the companies were working together under a Memorandum of Understanding," which is usually nonbinding. Hence, the new commercial deal suggests AT&T is confident AST can deliver fast and reliable satellite internet service to consumer smartphones -- even though it hasn't launched a production satellite. AST has only launched one prototype satellite; in tests last year, it delivered download rates at 14Mbps and powered a 5G voice call. Following a supply chain-related delay, the company is now preparing to launch its first batch of "BlueBird" production satellites later this year, possibly in Q3. In Wednesday's announcement, AT&T adds: "This summer, AST SpaceMobile plans to deliver its first commercial satellites to Cape Canaveral for launch into low Earth orbit. These initial five satellites will help enable commercial service that was previously demonstrated with several key milestones." Still, AST needs to launch 45 to 60 BlueBird satellites before it can offer continuous coverage in the U.S., although in an earnings call, the company said it'll still be able to offer "non-continuous coverage" across 5,600 cells in the country.

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Microsoft's AI Push Imperils Climate Goal As Carbon Emissions Jump 30%

Par : BeauHD
16 mai 2024 à 07:00
Microsoft's ambitious goal to be carbon negative by 2030 is threatened by its expanding AI operations, which have increased its carbon footprint by 30% since 2020. To meet its targets, Microsoft must quickly adopt green technologies and improve efficiency in its data centers, which are critical for AI but heavily reliant on carbon-intensive resources. Bloomberg reports: Now to meet its goals, the software giant will have to make serious progress very quickly in gaining access to green steel and concrete and less carbon-intensive chips, said Brad Smith, president of Microsoft, in an exclusive interview with Bloomberg Green. "In 2020, we unveiled what we called our carbon moonshot. That was before the explosion in artificial intelligence," he said. "So in many ways the moon is five times as far away as it was in 2020, if you just think of our own forecast for the expansion of AI and its electrical needs." [...] Despite AI's ravenous energy consumption, this actually contributes little to Microsoft's hike in emissions -- at least on paper. That's because the company says in its sustainability report that it's 100% powered by renewables. Companies use a range of mechanisms to make such claims, which vary widely in terms of credibility. Some firms enter into long-term power purchase agreements (PPAs) with renewable developers, where they shoulder some of a new energy plant's risk and help get new solar and wind farms online. In other cases, companies buy renewable energy credits (RECs) to claim they're using green power, but these inexpensive credits do little to spur new demand for green energy, researchers have consistently found. Microsoft uses a mix of both approaches. On one hand, it's one of the biggest corporate participants in power purchase agreements, according to BloombergNEF, which tracks these deals. But it's also a huge purchaser of RECs, using these instruments to claim about half of its energy use is clean, according to its environmental filings in 2022. By using a large quantity of RECs, Microsoft is essentially masking an even larger growth in emissions. "It is Microsoft's plan to phase out the use of unbundled RECs in future years," a spokesperson for the company said. "We are focused on PPAs as a primary strategy." So what else can be done? Smith, along with Microsoft's Chief Sustainability Officer Melanie Nakagawa, has laid out clear steps in the sustainability report. High among them is to increase efficiency, which is to use the same amount of energy or computing to do more work. That could help reduce the need for data centers, which will reduce emissions and electricity use. On most things, "our climate goals require that we spend money," said Smith. "But efficiency gains will actually enable us to save money." Microsoft has also been at the forefront of buying sustainable aviation fuels that has helped reduce some of its emissions from business travel. The company also wants to partner with those who will "accelerate breakthroughs" to make greener steel, concrete and fuels. Those technologies are starting to work at a small scale, but remain far from being available in commercial quantities even if expensive. Cheap renewable power has helped make Microsoft's climate journey easier. But the tech giant's electricity consumption last year rivaled that of a small European country -- beating Slovenia easily. Smith said that one of the biggest bottlenecks for it to keep getting access to green power is the lack of transmission lines from where the power is generated to the data centers. That's why Microsoft says it's going to increase lobbying efforts to get governments to speed up building the grid. If Microsoft's emissions remain high going into 2030, Smith said the company may consider bulk purchases of carbon removal credits, even though it's not "the desired course." "You've got to be willing to invest and pay for it," said Smith. Climate change is "a problem that humanity created and that humanity can solve."

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MIT Students Stole $25 Million In Seconds By Exploiting ETH Blockchain Bug, DOJ Says

Par : BeauHD
16 mai 2024 à 03:30
An anonymous reader quotes a report from Ars Technica: Within approximately 12 seconds, two highly educated brothers allegedly stole $25 million by tampering with the ethereum blockchain in a never-before-seen cryptocurrency scheme, according to an indictment that the US Department of Justice unsealed Wednesday. In a DOJ press release, US Attorney Damian Williams said the scheme was so sophisticated that it "calls the very integrity of the blockchain into question." "The brothers, who studied computer science and math at one of the most prestigious universities in the world, allegedly used their specialized skills and education to tamper with and manipulate the protocols relied upon by millions of ethereum users across the globe," Williams said. "And once they put their plan into action, their heist only took 12 seconds to complete." Anton, 24, and James Peraire-Bueno, 28, were arrested Tuesday, charged with conspiracy to commit wire fraud, wire fraud, and conspiracy to commit money laundering. Each brother faces "a maximum penalty of 20 years in prison for each count," the DOJ said. The indictment goes into detail explaining that the scheme allegedly worked by exploiting the ethereum blockchain in the moments after a transaction was conducted but before the transaction was added to the blockchain. To uncover the scheme, the special agent in charge, Thomas Fattorusso of the IRS Criminal Investigation (IRS-CI) New York Field Office, said that investigators "simply followed the money." "Regardless of the complexity of the case, we continue to lead the effort in financial criminal investigations with cutting-edge technology and good-ol'-fashioned investigative work, on and off the blockchain," Fattorusso said.

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Bay Area City Orders Scientists To Stop Controversial Cloud Brightening Experiment

Par : BeauHD
16 mai 2024 à 02:02
Last month, researchers from the University of Washington started conducting an experiment on a decommissioned naval ship in Alameda to test if spraying salt water into the air could brighten clouds and cool the planet. However, their project was forced to stop this month after the city got word of what was going on. SFGate reports: According to a city press release, scientists were ordered to halt the experiment because it violated Alameda's lease with the USS Hornet, the aircraft carrier from which researchers were spraying saltwater into the air using "a machine resembling a snowmaker." The news was first reported by the Alameda Post. "City staff are working with a team of biological and hazardous materials consultants to independently evaluate the health and environmental safety of this particular experiment," the press release states. Specifically, chemicals present in the experiment's aerosol spray are being evaluated to study whether or not they pose any threats to humans, animals or the environment. So far, there isn't any evidence that they do, the city stated. The prospect of a city-conducted review was not unexpected, the University of Washington said in a statement shared with SFGATE. "In fact, the CAARE (Coastal Aerosol Research and Engagement) facility is designed to help regulators, community members and others engage with the research closely, and we consider the current interactions with the city to be an integral part of that process," the statement reads. "We are happy to support their review and it has been a highly constructive process so far." The marine cloud brightening (MCB) technique involves spraying fine particles of sea salt into the atmosphere from ships or specialized machines. These sea salt particles are chosen because they are a natural source of cloud-forming aerosols and can increase the number of cloud droplets, making the clouds more reflective. The particles sprayed are extremely small, about 1/1000th the width of a human hair, ensuring they remain suspended in the air and interact with cloud droplets effectively. By reflecting more sunlight, these brightened clouds can reduce the amount of solar energy reaching the Earth's surface, leading to localized cooling. If implemented on a large scale, this cooling effect could potentially offset some of the warming caused by greenhouse gases. You can learn more about the experiment here.

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Netflix To Take On Google and Amazon By Building Its Own Ad Server

Par : BeauHD
16 mai 2024 à 01:25
Lauren Forristal writes via TechCrunch: Netflix announced during its Upfronts presentation on Wednesday that it's launching its own advertising technology platform only a year and a half after entering the ads business. This move pits it against other industry heavyweights with ad servers, like Google, Amazon and Comcast. The announcement signifies a significant shake-up in the streaming giant's advertising approach. The company originally partnered with Microsoft to develop its ad tech, letting Netflix enter the ad space quickly and catch up with rivals like Hulu, which has had its own ad server for over a decade. With the launch of its in-house ad tech, Netflix is poised to take full control of its advertising future. This strategic move will empower the company to create targeted and personalized ad experiences that resonate with its massive user base of 270 million subscribers. [...] Netflix didn't say exactly how its in-house solution will change the way ads are delivered, but it's likely it'll move away from generic advertisements. According to the Financial Times, Netflix wants to experiment with "episodic" campaigns, which involve a series of ads that tell a story rather than delivering repetitive ads. During the presentation, Netflix also noted that it'll expand its buying capabilities this summer, which will now include The Trade Desk, Google's Display & Video 360 and Magnite as partners. Notably, competitor Disney+ also has an advertising agreement with The Trade Desk. Netflix also touted the success of its ad-supported tier, reporting that 40 million global monthly active users opt for the plan. The ad tier had around 5 million users within six months of launching.

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US Regulators Approve Rule That Could Speed Renewables

Par : BeauHD
16 mai 2024 à 00:45
Longtime Slashdot reader necro81 writes: The U.S. Federal Energy Regulatory Commission (FERC), which controls interstate energy infrastructure, approved a rule Monday that should boost new transmission infrastructure and make it easier to connect renewable energy projects. (More coverage here, here, and here.) Some 11,000 projects totaling 2,600 GW of capacity are in planning, waiting to break ground, or connect to the grid. But they're stymied by the need for costly upgrades, or simply waiting for review. The frustrations are many. Each proposed project undergoes a lengthy grid-impact study and assessed the cost of necessary upgrades. Each project is considered in isolation, regardless of whether similar projects are happening nearby that could share the upgrade costs or auger different improvements. The planning process tends to be reactive -- examining only the applications in front of them -- rather than considering trends over the coming years. It's a first-come, first-served queue: if one project is ready to break ground, it must wait behind another project that's still securing funding or permitting. Two years in development, the dryly-named Improvements to Generator Interconnection Procedures and Agreements directs utility operators to plan infrastructure improvements with a 20-yr forecast of new energy sources and increased demand. Rather than examining each project in isolation, similar projects will be clustered and examined together. Instead of a First-Come, First-Served serial process, operators will instead examine First-Ready, allowing shovel-ready projects to jump the queue. The expectation is that these new rules will speed up and streamline the process of developing and connecting new energy projects through more holistic planning, penalties for delays, sensible cost-sharing for upgrades, and justification for long-term investments.

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À partir d’avant-hierActualités numériques

Quantum Internet Draws Near Thanks To Entangled Memory Breakthroughs

Par : BeauHD
15 mai 2024 à 22:40
An anonymous reader quotes a report from New Scientist: Efforts to build a global quantum internet have received a boost from two developments in quantum information storage that could one day make it possible to communicate securely across hundreds or thousands of kilometers. The internet as it exists today involves sending strings of digital bits, or 0s and 1s, in the form of electrical or optical signals, to transmit information. A quantum internet, which could be used to send unhackable communications or link up quantum computers, would use quantum bits instead. These rely on a quantum property called entanglement, a phenomenon in which particles can be linked and measuring one particle instantly influences the state of another, no matter how far apart they are. Sending these entangled quantum bits, or qubits, over very long distances, requires a quantum repeater, a piece of hardware that can store the entangled state in memory and reproduce it to transmit it further down the line. These would have to be placed at various points on a long-distance network to ensure a signal gets from A to B without being degraded. Quantum repeaters don't yet exist, but two groups of researchers have now demonstrated long-lasting entanglement memory in quantum networks over tens of kilometers, which are the key characteristics needed for such a device. Can Knaut at Harvard University and his colleagues set up a quantum network consisting of two nodes separated by a loop of optical fibre that spans 35 kilometers across the city of Boston. Each node contains both a communication qubit, used to transmit information, and a memory qubit, which can store the quantum state for up to a second. "Our experiment really put us in a position where we're really close to working on a quantum repeater demonstration," says Knaut. To set up the link, Knaut and his team entangled their first node, which contains a type of diamond with an atom-sized hole in it, with a photon that they sent to their second node, which contains a similar diamond. When the photon arrives at the second diamond, it becomes entangled with both nodes. The diamonds are able to store this state for a second. A fully functioning quantum repeater using similar technology could be demonstrated in the next couple of years, says Knaut, which would enable quantum networks connecting cities or countries. In separate work, Xiao-Hui Bao at the University of Science and Technology of China and his colleagues entangled three nodes together, each separated by around 10 kilometers in the city of Hefei. Bao and his team's nodes use supercooled clouds of hundreds of millions of rubidium atoms to generate entangled photons, which they then sent across the three nodes. The central of the three nodes is able to coordinate these photons to link the atom clouds, which act as a form of memory. The key advance for Bao and his team's network is to match the frequency of the photons meeting at the central node, which will be crucial for quantum repeaters connecting different nodes. While the storage time was less than Knaut's team, at 100 microseconds, it is still long enough to perform useful operations on the transmitted information.

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