Feed aggregator
China's 'Artificial Sun' Breaks Nuclear Fusion Limit Thought to Be Impossible
"Scientists in China have made a breakthrough with fusion energy that could finally overcome one of the most stubborn barriers to realising the next-generation energy source," reports the Independent:
A team from the Chinese Academy of Sciences (CAS) said its experimental nuclear reactor, dubbed the 'artificial Sun', achieved a plasma density that was previously thought impossible... Through a new process called plasma-wall self organisation, the CAS researchers were able to keep the plasma stable at unprecedented density levels. By pushing plasma density well past long-standing empirical limits, the researchers said fusion ignition can be achieved with far higher energy outputs. "The findings suggest a practical and scalable pathway for extending density limits in tokamaks and next-generation burning plasma fusion devices," said Professor Ping Zhu from Huazhong University of Science and Technology, who so-led the research.
Professor Zhu's team now plan to apply this new method on the EAST reactor to confirm that it will work under high-performance plasma conditions. The latest breakthrough was detailed in the journal Science Advances in a study titled 'Accessing the density-free regime with ECRH-assisted ohmic start-up on EAST'.
Read more of this story at Slashdot.
Meta Announces New Smartglasses Features, Delays International Rollout Claiming 'Unprecedented' Demand'
This week Meta announced several new features for "Meta Ray-Ban Display" smartglasses:
- A new teleprompter feature for the smart glasses (arriving in a phased rollout)
- The ability to send messages on WhatsApp and Messenger by writing with your finger on any surface. (Available for those who sign up for an "early access" program).
- "Pedestrian navigation" for 32 cities. ("The 28 cities we launched Meta Ray-Ban Display with, plus Denver, Las Vegas, Portland, and Salt Lake City," and with more cities coming soon.)
But they also warned Meta Ray-Ban Display "is a first-of-its-kind product with extremely limited inventory," saying they're delaying international expansion of sales due to inventory constraints — and also due to "unprecedented" demand in the U.S. CNBC reports:
"Since launching last fall, we've seen an overwhelming amount of interest, and as a result, product waitlists now extend well into 2026," Meta wrote in a blog post. Due to "limited" inventory, the company said it will pause plans to launch in the U.K., France, Italy and Canada early this year and concentrate on U.S. orders as it reassesses international availability...
Meta is one of several technology companies moving into the smart glasses market. Alphabet announced a $150 million partnership with Warby Parker in May and ChatGPT maker OpenAI is reportedly working on AI glasses with Apple.
Read more of this story at Slashdot.
Medical Evacuation from Space Station Next Week for Astronaut in Stable Condition
It will be the first medical evacuation from the International space station in its 25-year history. The Guardian reports:
An astronaut in the orbital laboratory reportedly fell ill with a "serious" but undisclosed issue. Nasa also had to cancel its first spacewalk of the year... The agency did not identify the astronaut or the medical problem, citing patient privacy. "Because the astronaut is absolutely stable, this is not an emergent evacuation," [chief health and medical officer Dr. James] Polk said. "We're not immediately disembarking and getting the astronaut down, but it leaves that lingering risk and lingering question as to what that diagnosis is, and that means there is some lingering risk for that astronaut onboard."
"SpaceX says it's Dragon spacecraft at the International Space Station is ready to return its four Crew-11 astronauts home in an unprecedented medical evacuation on Jan. 14 and 15," reports Space.com:
The SpaceX statement came on the heels of NASA's announcement that the Crew-11 astronauts were scheduled to undock from the space station on Jan. 14 and splashdown off the coast of California early on Jan. 15. The Crew-11 Dragon spacecraft will return NASA astronauts Zena Cardman and Mike Fincke to Earth alongside Japanese astronaut Kimiya Yui and Russian cosmonaut Oleg Platanov... NASA officials opted for a "controlled medical evacuation" in order to provide the astronaut better treatment on the ground, NASA chief Jared Isaacman has said...
Dr. James Polk, NASA's chief medical officer, has said the medical issue is not an injury to the astronaut afflicted, but rather something related to the prolonged exposure to weighlessness by astronauts living and working on the International Space Station. "It's mostly having a medical issue in the difficult areas of microgravity and the suite of hardware that we operate in," Polk said.
Read more of this story at Slashdot.
More US States Are Preparing Age-Verification Laws for App Stores
Yes, a federal judge blocked an attempt by Texas at an app store age-verification law.
But this year Silicon Valley giants including Google and Apple "are expected to fight hard against similar legislation," reports Politico, "because of the vast legal liability it imposes on app stores and developers."
In Texas, Utah and Louisiana, parent advocates have linked up with conservative "pro-family" groups to pass laws forcing mobile app stores to verify user ages and require parental sign-off. If those rules hold up in court, companies like Google and Apple, which run the two largest app stores, would face massive legal liability... California has taken a different approach, passing its own age-verification law last year that puts liability on device manufacturers instead of app stores. That model has been better received by the tech lobby, and is now competing with the app-based approach in states like Ohio. In Washington D.C., a GOP-led bill modeled off of Texas' law is wending its way through Capitol Hill. And more states are expected to join the fray, including Michigan and South Carolina.
Joel Thayer, president of the conservative Digital Progress Institute and a key architect of the Texas law, said states are only accelerating their push. He explicitly linked the age-verification debate to AI, arguing it's "terrifying" to think companies could build new AI products by scraping data from children's apps. Thayer also pointed to the Trump administration's recent executive order aimed at curbing state regulation of AI, saying it has galvanized lawmakers. "We're gonna see more states pushing this stuff," Thayer said. "What really put fuel in the fire is the AI moratorium for states. I think states have been reinvigorated to fight back on this."
He told Politico that the issue will likely be decided by America's Supreme Court, which in June upheld Texas legislation requiring age verification for online content. Thayer said states need a ruling from America's highest court to "triangulate exactly what the eff is going on with the First Amendment in the tech world.
"They're going to have to resolve the question at some point."
Read more of this story at Slashdot.
How the Free Software Foundation Kept a Videoconferencing Software Free
The Free Software Foundation's president Ian Kelling is also their senior systems administrator. This week he shared an example of how "the work we put in to making sure a program is free for us also makes it free for the rest of the world."
During the COVID-19 pandemic, like everyone everywhere, the FSF increased its videoconferencing use, especially videoconferencing software that works in web browsers. We have experience hosting several different programs to accomplish this, and BigBlueButton was an important one for us for a while. It is a videoconferencing service which describes itself as a virtual classroom because of its many features designed for educational environments, such as a shared whiteboard... In BigBlueButton 2.2, the program used a freely licensed version of MongoDB, but it unintentionally picked up MongoDB's 2018 nonfree license change in versions 2.3 and 2.4. At the FSF, we noticed this [after a four-hour review] and raised the alarm with the BigBlueButton team in late 2020.
In many cases of a developer changing to a nonfree license, free forks have won out, but in this case no one judged it worth the effort to maintain a fork of the final free MongoDB version. This was a very unfortunate case for existing users of MongoDB, including the FSF, who were then faced with a challenge of maintaining their freedom by either running old and unmaintained software or switching over to a different free program. Luckily, the free software world is not especially lacking in high quality database software, and there is also a wide array of free videoconferencing software. At the FSF, we decided to spend some effort to make sure MongoDB would no longer make BigBlueButton nonfree, to help other users of MongoDB and BigBlueButton. We think BigBlueButton is really useful for free software in schools, where it is incredibly important to have free software.
On the tech team, especially when it comes to software running in a web browser, we are used to making modifications to better suit our needs. In the end, we didn't find a perfect solution, but we did find FerretDB to be a promising MongoDB alternative and assisted the developers of FerretDB to see what would be required for it to work in BigBlueButton. The BigBlueButton developers decided that some architectural level changes for their 3.0 release would be the path for them to remove MongoDB. As of BigBlueButton 3.0, released in 2025, BigBlueButton is back to being entirely free software...!
As you can see, in the world of free software, trust can be tricky, and this is part of why organizations like the FSF are so important.
Kelling notes he's part of a tech team of just two people reponsible for "63 different services, platforms, and websites for the FSF staff, the GNU Project, other community projects, and the wider free software community..."
Read more of this story at Slashdot.
French-UK Starlink Rival Pitches Canada On 'Sovereign' Satellite Service
An anonymous reader quotes a report from CBC.ca: A company largely owned by the French and U.K. governments is pitching Canada on a roughly $250-million plan to provide the military with secure satellite broadband coverage in the Arctic, CBC News has learned. Eutelsat, a rival to tech billionaire Elon Musk's Starlink, already provides some services to the Canadian military, but wants to deepen the partnership as Canada looks to diversify defence contracts away from suppliers in the United States.
A proposal for Canada's Department of National Defence to join a French Ministry of Defence initiative involving Eutelsat was apparently raised by French President Emmanuel Macron with Prime Minister Mark Carney on the sidelines of last year's G7 summit in Alberta. The prime minister's first question, according to Eutelsat and French defence officials, was how the proposal would affect the Telesat Corporation, a former Canadian Crown corporation that was privatized in the 1990s.
Telesat is in the process of developing its Lightspeed system, a Low Earth Orbit (LEO) constellation of satellites for high-speed broadband. And in mid-December, the Liberal government announced it had established a strategic partnership with Telesat and MDA Space to develop the Canadian Armed Forces' military satellite communications (MILSATCOM) capabilities. A Eutelsat official said the company already has its own satellite network in place and running, along with Canadian partners, and has been providing support to the Canadian military deployed in Latvia. "What we can provide for Canada is what we call a sovereign capacity capability where Canada would actually own all of our capacity in the Far North or wherever they require it," said David van Dyke, the general manager for Canada at Eutelsat.
"We also give them the ability to not be under the control of a singular individual who could decide to disconnect the service for political or other reasons."
Read more of this story at Slashdot.
Scientists Tried To Break Einstein's Speed of Light Rule
Scientists are putting Einstein's claim that the speed of light is constant to the test. While researchers found no evidence that light's speed changes with energy, this null result dramatically tightens the constraints on quantum-gravity theories that predict even the tiniest violations. ScienceDaily reports: Special relativity rests on the principle that the laws of physics remain the same for all observers, regardless of how they are moving relative to one another. This idea is known as Lorentz invariance. Over time, Lorentz invariance became a foundational assumption in modern physics, especially within quantum theory. [...] One prediction shared by several Lorentz-invariance-violating quantum gravity models is that the speed of light may depend slightly on a photon's energy. Any such effect would have to be tiny to match existing experimental limits. However, it could become detectable at the highest photon energies, specifically in very-high-energy gamma rays.
A research team led by former UAB student Merce Guerrero and current IEEC PhD student at the UAB Anna Campoy-Ordaz set out to test this idea using astrophysical observations. The team also included Robertus Potting from the University of Algarve and Markus Gaug, a lecturer in the Department of Physics at the UAB who is also affiliated with the IEEC. Their approach relies on the vast distances light travels across the universe. If photons of different energies are emitted at the same time from a distant source, even minuscule differences in their speeds could build up into measurable delays by the time they reach Earth.
Using a new statistical technique, the researchers combined existing measurements of very-high-energy gamma rays to examine several Lorentz-invariance-violating parameters favored by theorists within the Standard Model Extension (SME). The goal was ambitious. They hoped to find evidence that Einstein's assumptions might break down under extreme conditions. Once again, Einstein's predictions held firm. The study did not detect any violation of Lorentz invariance. Even so, the results are significant. The new analysis improves previous limits by an order of magnitude, sharply narrowing where new physics could be hiding.
Read more of this story at Slashdot.
Meta Signs Deals With Three Nuclear Companies For 6+ GW of Power
Meta has signed long-term nuclear power deals totaling more than 6 gigawatts to fuel its data centers: "one from a startup, one from a smaller energy company, and one from a larger company that already operates several nuclear reactors in the U.S," reports TechCrunch. From the report: Oklo and TerraPower, two companies developing small modular reactors (SMR), each signed agreements with Meta to build multiple reactors, while Vistra is selling capacity from its existing power plants. [...] The deals are the result of a request for proposals that Meta issued in December 2024, in which Meta sought partners that could add between 1 to 4 gigawatts of generating capacity by the early 2030s. Much of the new power will flow through the PJM interconnection, a grid which covers 13 Mid-Atlantic and Midwestern states and has become saturated with data centers.
The 20-year agreement with Vistra will have the most immediate impact on Meta's energy needs. The tech company will buy a total of 2.1 gigawatts from two existing nuclear power plants, Perry and Davis-Besse in Ohio. As part of the deal, Vistra will also add capacity to those power plants and to its Beaver Valley power plant in Pennsylvania. Together, the upgrades will generate an additional 433 MW and are scheduled to come online in the early 2030s.
Meta is also buying 1.2 gigawatts from young provider Oklo. Under its deal with Meta, Oklo is hoping to start supplying power to the grid as early as 2030. The SMR company went public via SPAC in 2023, and while Oklo has landed a large deal with data center operator Switch, it has struggled to get its reactor design approved by the Nuclear Regulatory Commission. If Oklo can deliver on its timeline, the new reactors would be built in Pike County, Ohio. The startup's Aurora Powerhouse reactors each produce 75 megawatts of electricity, and it will need to build more than a dozen to fulfill Meta's order. TerraPower is a startup co-founded by Bill Gates, and it is aiming to start sending electricity to Meta as early as 2032.
Read more of this story at Slashdot.
RebelsTool 1.0.9 - The new MorePowerTool for AMD's RDNA graphics cards on Linux delivers more power, excitement, and performance. - igor´sLAB
Categories: Linux
Linux Box Dev Edition brings Armbian Linux with Home Assistant support - LinuxGizmos.com
Categories: Linux
Download of the day: GIMP 3.0 is FINALLY Here!
Wow! After years of hard work and countless commits, we have finally reached a huge milestone: GIMP 3.0 is officially released! I am excited as I write this and can't wait to share some incredible new features and improvements in this release. GIMP 2.10 was released in 2018, and the first development version of GIMP 3.0 came out in 2020. GIMP 3.0 released on 16/March/2025. Let us explore how to download and install GIMP 3.0, as well as the new features in this version.
Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit
The post Download of the day: GIMP 3.0 is FINALLY Here! appeared first on nixCraft.
2025-03-18T03:45:26Z
2025-03-18T03:45:26Z
Vivek Gite
How to list upgradeable packages on FreeBSD using pkg
Here is a quick list of all upgradeable packages on FreeBSD using pkg command. This is equivalent to apt list --upgradable command on my Debian or Ubuntu Linux system.
Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit
The post How to list upgradeable packages on FreeBSD using pkg appeared first on nixCraft.
2025-03-16T20:25:39Z
2025-03-16T20:25:39Z
Vivek Gite
Ubuntu to Explore Rust-Based “uutils” as Potential GNU Core Utilities Replacement
In a move that has sparked significant discussion within the Ubuntu Linux fan-base and community, Canonical, the company behind Ubuntu, has announced its intention to explore the potential replacement of GNU Core Utilities with the Rust-based "uutils" project. They plan to introduce new changes in Ubuntu Linux 25.10, eventually changing it to Ubuntu version 26.04 LTS release in 2026 as Ubuntu is testing Rust 'uutils' to overhaul its core utilities potentially. Let us find out the pros and cons and what this means for you as an Ubuntu Linux user, IT pro, or developer.
Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit
The post Ubuntu to Explore Rust-Based “uutils” as Potential GNU Core Utilities Replacement appeared first on nixCraft.
2025-03-16T12:17:36Z
2025-03-16T12:17:36Z
Vivek Gite
How to install KSH on FreeBSD
Installing KSH (KornShell) on FreeBSD can be done with either FreeBSD ports or the pkg command. The ports collection will download the KSH source code, compile it, and install it on the system. The pkg method is easier, and it will download a pre-compiled binary package. Hence, it is recommended for all users. KornShell (KSH) has a long history, and many older Unix systems and scripts rely on it. As a result, KSH remains relevant for maintaining and supporting legacy infrastructure. Large enterprises, especially those with established Unix-based systems, continue to use KSH for scripting and system administration tasks. Some industries where KSH is still commonly used include finance and telecommunications. While Bash has become the dominant shell in many Linux distributions, KSH still holds a significant presence in Unix-like environments, particularly in legacy systems. Therefore, installing KSH and practicing with it is worthwhile if you plan to work in such environments.
Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit
The post How to install KSH on FreeBSD appeared first on nixCraft.
2025-03-03T23:50:59Z
2025-03-03T23:50:59Z
Vivek Gite
Linux Sed Tutorial: Learn Text Editing with Syntax & Examples
Sed is an acronym for "stream editor." A stream refers to a source or destination for bytes. In other words, sed can read its input from standard input (stdin), apply the specified edits to the stream, and automatically output the results to standard output (stdout). Sed syntax allows an input file to be specified on the command line. However, the syntax does not directly support output file specification; this can be achieved through output redirection or editing files in place while making a backup of the original copy optionally. Sed is one of the most powerful tools on Linux and Unix-like systems. Learning it is worthwhile, so in this tutorial, we will start with the sed command syntax and examples.
Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit
The post Linux Sed Tutorial: Learn Text Editing with Syntax & Examples appeared first on nixCraft.
2025-03-03T09:47:07Z
2025-03-03T09:47:07Z
Vivek Gite
How to tell if FreeBSD needs a Reboot using kernel version check
Keeping your FreeBSD server or workstation updated is crucial for security and stability. However, after applying updates, especially kernel updates, you might wonder, "Do I need to reboot my system?" Let's simplify this process and provide a straightforward method for determining whether a reboot is necessary using the CLI, shell script, and ansible playbook.
Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit
The post How to tell if FreeBSD needs a Reboot using kernel version check appeared first on nixCraft.
2025-02-23T22:07:23Z
2025-02-23T22:07:23Z
Vivek Gite
Critical Rsync Vulnerability Requires Immediate Patching on Linux and Unix systems
Rsync is a opensource command-line tool in Linux, macOS, *BSD and Unix-like systems that synchronizes files and directories. It is a popular tool for sending or receiving files, making backups, or setting up mirrors. It minimizes data copied by transferring only the changed parts of files, making it faster and more bandwidth-efficient than traditional copying methods provided by tools like sftp or ftp-ssl. Rsync versions 3.3.0 and below has been found with SIX serious vulnerabilities. Attackers could exploit these to leak your data, corrupt your files, or even take over your system. There is a heap-based buffer overflow with a CVSS score of 9.8 that needs to be addressed on both the client and server sides of rsync package. Apart from that info leak via uninitialized stack contents defeats ASLR protection and rsync server can make client write files outside of destination directory using symbolic links.
Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit
The post Critical Rsync Vulnerability Requires Immediate Patching on Linux and Unix systems appeared first on nixCraft.
2025-01-15T18:04:24Z
2025-01-15T18:04:24Z
Vivek Gite
How to control the SSH multiplexing with the control commands
Multiplexing will boost your SSH connectivity or speed by reusing existing TCP connections to a remote host. This is useful when you frequently connect to the same server using SSH protocol for remote login, server management, using IT automation tools over SSH or even running hourly backups. However, sometimes your SSH command (client) will not respond or get hung up on the session when using multiplexing. Typically, this happens when your public IP changes (IPv4 to IPv6 changes when using DNS names), VPN issues, or firewall cuts connections. Hence, knowing SSH client control commands can save you time and boost your productivity when such gotchas occur.
Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit
The post How to control the SSH multiplexing with the control commands appeared first on nixCraft.
2025-01-15T08:29:10Z
2025-01-15T08:29:10Z
Vivek Gite
ZFS Raidz Expansion Finally, Here in version 2.3.0
After years of development and testing, the ZFS raidz expansion is finally here and has been released as part of version 2.3.0. ZFS is a popular file system for Linux and FreeBSD. RAIDz is like RAID 5, which you find with hardware or Linux software raid devices. It protects your data by spreading it across multiple hard disks along with parity information. A raidz device can have single, double, or triple parity to sustain one, two, or three hard disk failures, respectively, without losing any data. Hence, expanding or adding a new HDD is a very handy feature for sysadmins in today's data-sensitive apps.
Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit
The post ZFS Raidz Expansion Finally, Here in version 2.3.0 appeared first on nixCraft.
2025-01-14T09:19:20Z
2025-01-14T09:19:20Z
Vivek Gite
How to run Docker inside Incus containers
Incus and Docker both use Linux kernel features to containerize your applications. Incus is best suited when you need system-level containers that act like traditional VMs and provide a persistent developer experience. On the other hand, Docker containers are ephemeral, i.e., temporary in nature. All files created inside Docker containers are lost when your Docker container is stopped or removed unless you stored them using volumes in different directories outside Docker. Docker is created as a disposable app deployment system. Incus containers are not typically created as disposables, and data is kept inside when they are stopped. Because of the Linux kernel support nesting feature, you can run Docker inside Incus. This page explains how to run Docker inside Incus containers.
Love this? sudo share_on: Twitter - Facebook - LinkedIn - Whatsapp - Reddit
The post How to run Docker inside Incus containers appeared first on nixCraft.
2024-12-18T05:44:26Z
2024-12-18T05:44:26Z
Vivek Gite