An anonymous reader quotes a report from Ars Technica, written by Andrew Cunningham: Back in 2013, Nvidia introduced a new technology called G-Sync to eliminate screen tearing and stuttering effects and reduce input lag when playing PC games. The company accomplished this by tying your display's refresh rate to the actual frame rate of the game you were playing, and similar variable refresh-rate (VRR) technology has become a mainstay even in budget monitors and TVs today. The issue for Nvidia is that G-Sync isn't what has been driving most of that adoption. G-Sync has always required extra dedicated hardware inside of displays, increasing the costs for both users and monitor manufacturers. The VRR technology in most low-end to mid-range screens these days is usually some version of the royalty-free AMD FreeSync or the similar VESA Adaptive-Sync standard, both of which provide G-Sync's most important features without requiring extra hardware. Nvidia more or less acknowledged that the free-to-use, cheap-to-implement VRR technologies had won in 2019 when it announced its "G-Sync Compatible" certification tier for FreeSync monitors. The list of G-Sync Compatible screens now vastly outnumbers the list of G-Sync and G-Sync Ultimate screens.

Today, Nvidia is announcing a change that's meant to keep G-Sync alive as its own separate technology while eliminating the requirement for expensive additional hardware. Nvidia says it's partnering with chipmaker MediaTek to build G-Sync capabilities directly into scaler chips that MediaTek is creating for upcoming monitors. G-Sync modules ordinarily replace these scaler chips, but they're entirely separate boards with expensive FPGA chips and dedicated RAM. These new MediaTek scalers will support all the same features that current dedicated G-Sync modules do. Nvidia says that three G-Sync monitors with MediaTek scaler chips inside will launch "later this year": the Asus ROG Swift PG27AQNR, the Acer Predator XB273U F5, and the AOC AGON PRO AG276QSG2. These are all 27-inch 1440p displays with maximum refresh rates of 360 Hz.

An anonymous reader quotes a report from Interesting Engineering: A student has successfully developed a small nuclear fusion reactor as part of his A-Levels. The 17-year-old built the reactor to generate neutrons as part of his Extended Project Qualification (EPQ). Notably, Cesare Mencarini's work is claimed to be the only nuclear reactor built in a school environment. Showcased at the Cambridge Science Festival recently, the nuclear reactor achieved plasma a few months ago. It also gave Mencarini an A* in his A-Level results, according to reports. [...] Mencarini maintained that the goal of the reactor is to create conditions that are required for fusion. However, the project couldn't get same pressure that's generated by the Sun due to its own gravity. Therefore, to make atoms hot enough, the teen used high voltage.

The reactor achieved plasma in June. "Two days ago I achieved plasma, which was brilliant and I'm massively happy about this," wrote Mencarini in a LinkedIn post. "The system is running thanks to a Leybold Trivac E2 roughing pump, which allows me to achieve a minimum pressure of 8E-3 Torr." At that time, he mentioned that Pfeiffer TPH062 would be used later to achieve fusion. "This turbomolecular pump is currently isolated by a VAT Throttling Valve." "The grid is then attached to a 30kV rated High Voltage Feedthrough connected to a 5kV Unilab power supply, which allows me to use the fusor in my school (It is limited to a 2mA output). While running the fusor I experimented with 2 grids which you can see in the images," added Mencarini in the post.

In the 1980s, a radio show about home computers was broadcast on a handful of California radio stations. 40 years later, reel-to-reel tapes of the shows were re-discovered — and digitized — by an Internet Archive special collections manager.

An Internet Archive blog post tells the story: Earlier this year archivist Kay Savetz recovered several of the tapes in a property sale, and recognizing their value and worthiness of professional transfer, launched a GoFundMe to have them digitized, and made them available at Internet Archive with the permission of the show's creators...

Interviews in the recovered recordings include Timothy Leary, Douglas Adams, Bill Gates, Atari's Jack Tramiel, Apple's Bill Atkinson, and dozens of others. The recovered shows span November 17 1984 through July 12, 1985.

Many more of the original reel-to-reel tapes — including shows with interviews with Ray Bradbury, Robert Moog, Donny Osmond, and Gene Roddenberry — are still lost, and perhaps are still waiting to be found in the Los Angeles area. [Though there appears to be a transcript of the Gene Roddenberry interview.]

The stories of how The Famous Computer Cafe was created — and saved, 40 years later — is explored in an episode of the Radio Survivor podcast. The podcast interviewed show co-creator Ellen Fields and archivist Kay Savetz, providing a dual perspective of how the show was created and how it was recovered.

The recovery of these interviews, 40 years after their original airing, holds out hope that many more relics and treasures still await discovery.
You get another perspective on the past from the show's advertisements for 1980s software (and from the production values of 1980s-era radio technology).

Bill Gates was just 29 when he recorded his interview. And Douglas Adams was 32.

Bloomberg's Mark Gruman remembers how Apple's hardware group "allowed Apple to dump Intel chips from its entire Mac lineup."

And they're now building an in-house cellular modem: For more than a decade, Apple has used modem chips designed by Qualcomm... But in 2018 — while facing a legal battle over royalties and patents — Apple started work on its own modem design.... It's devoting billions of dollars, thousands of engineers and millions of working hours to a project that won't really improve its devices — at least at the outset...

Over the past few years, Apple's modem project has suffered numerous setbacks. There have been problems with performance and overheating, and Apple has been forced to push back the modem's debut until next year at the earliest. The rollout will take place on a gradual basis — starting with niche models — and take a few years to complete. In a sign of this slow transition, Apple extended its supplier agreement with Qualcomm through March 2027... But Qualcomm has said that Apple will still have to pay it some royalties regardless (the chipmaker believes that Apple won't be able to avoid infringing its patents).

So it's hard to tell how big the benefits will be in the near term. Down the road, there are plans for Apple to fold its modem design into a new wireless chip that handles Wi-Fi and Bluetooth access. That would create a single connectivity component, potentially improving reliability and battery life. There's also the possibility that Apple could one day combine all of this into the device's main system on a chip, or SoC. That could further cut costs and save space inside the iPhone, allowing for more design choices. Furthermore, if Apple does ultimately save money by switching away from Qualcomm, it could redirect that spending toward new features and components.

Apple is building "a pricey tabletop home device" which uses "a thin robotic arm to move around a large screen," using actuators "to tilt the display up and down and make it spin 360 degree," according to Bloomberg's Mark Gurman. Citing "people with knowledge of the matter," Gurman writes that Apple assigned "several hundred people" to the project: The device is envisioned as a smart home command center, videoconferencing machine and remote-controlled home security tool, said the people... The project — codenamed J595 — was approved by Apple's executive team in 2022 but has started to formally ramp up in recent months, they said... Apple has now decided to prioritize the device's development and is aiming for a debut as early as 2026 or 2027, according to the people.

The company is looking to get the price down to around $1,000. But with years to go before an expected release, the plans could theoretically change... The idea is for the tabletop product to be primarily controlled using the Siri digital assistant and upcoming features in Apple Intelligence. The device could respond to commands, such as "look at me," by repositioning the screen to focus on the person saying the words — say, during a video call. It also could understand different voices and adjust its focus accordingly. Current models in testing run a customized version of the iPad operating system...

The company also is working on robots that move around the home and has discussed the idea of a humanoid version. Those projects are being led, in part, by Hanns Wolfram Tappeiner, a robotics expert who now has about 100 former car team engineers reporting to him. In a job listing published this month, Apple said it has a team "working to leverage and build upon groundbreaking machine learning robotics research, thereby enabling development of generalizable and reliable robot systems." The company said it's seeking experts with experience in "robot manipulation" and creating AI models for robot control.
The article calls points out that Apple "still gets roughly half its revenue from the iPhone," and calls the robotics effort "one of a few avenues Apple is pursuing to generate new sources of revenue" — and to "capitalize" on its AI technology. (Apple is also working on both smart eyeglasses and augmented reality galsses.)

Data center construction "could delay California's transition away from fossil fuels and raise electric bills for everyone else," warns the Los Angeles Times — and also increase the risk of blackouts: Even now, California is at the verge of not having enough power. An analysis of public data by the nonprofit GridClue ranks California 49th of the 50 states in resilience — or the ability to avoid blackouts by having more electricity available than homes and businesses need at peak hours... The state has already extended the lives of Pacific Gas & Electric Co.'s Diablo Canyon nuclear plant as well as some natural gas-fueled plants in an attempt to avoid blackouts on sweltering days when power use surges... "I'm just surprised that the state isn't tracking this, with so much attention on power and water use here in California," said Shaolei Ren, associate professor of electrical and computer engineering at UC Riverside. Ren and his colleagues calculated that the global use of AI could require as much fresh water in 2027 as that now used by four to six countries the size of Denmark.

Driving the data center construction is money. Today's stock market rewards companies that say they are investing in AI. Electric utilities profit as power use rises. And local governments benefit from the property taxes paid by data centers.
The article notes a Goldman Sachs estimate that by 2030, data centers could consume up to 11% of all U.S. power demand — up from 3% now. And it shows how the sprawling build-out of data centers across America is impacting surrounding communities:

• The article notes that California's biggest concentration of data centers — more than 50 near the Silicon Valley city of Santa Clara — are powered by a utility emitting "more greenhouse gas than the average California electric utility because 23% of its power for commercial customers comes from gas-fired plants. Another 35% is purchased on the open market where the electricity's origin can't be traced." Consumer electric rates are rising "as the municipal utility spends heavily on transmission lines and other infrastructure," while the data centers now consume 60% of the city's electricity.

• Energy officials in northern Virginia "have proposed a transmission line to shore up the grid that would depend on coal plants that had been expected to be shuttered."

• In 2022 an Oregon newspaper discovered Google data centers were consuming 29% of one city's water supply.

• "Earlier this year, Pacific Gas & Electric told investors that its customers have proposed more than two dozen data centers, requiring 3.5 gigawatts of power — the output of three new nuclear reactors."

"I've been somewhat okay about backing up our home data," writes long-time Slashdot reader 93 Escort Wagon.

But they could use some good advice: We've got a couple separate disks available as local backup storage, and my own data also gets occasionally copied to encrypted storage at BackBlaze. My daughter has her own "cloud" backups, which seem to be a manual push every once in a while of random files/folders she thinks are important. Including our media library, between my stuff, my daughter's, and my wife's... we're probably talking in the neighborhood of 10 TB for everything at present. The whole setup is obviously cobbled together, and the process is very manual. Plus it's annoying since I'm handling Mac, Linux, and Windows backups completely differently (and sub-optimally). Also, unsurprisingly, the amount of data we possess does seem to be increasing with time.

I've been considering biting the bullet and buying an NAS [network-attached storage device], and redesigning the entire process — both local and remote. I'm familiar with Synology and DSM from work, and the DS1522+ looks appealing. I've also come across a lot of recommendations for QNAP's devices, though. I'm comfortable tackling this on my own, but I'd like to throw this out to the Slashdot community.

What NAS do you like for home use. And what disks did you put in it? What have your experiences been?
Long-time Slashdot reader AmiMoJo asks "Have you considered just building one?" while suggesting the cheapest option is low-powered Chinese motherboards with soldered-in CPUs. And in the comments on the original submission, other Slashdot readers shared their examples:

• destined2fail1990 used an AMD Threadripper to build their own NAS with 10Gbps network connectivity.
• DesertNomad is using "an ancient D-Link" to connect two Synology DS220 DiskStations
• Darth Technoid attached six Seagate drives to two Macbooks. "Basically, I found a way to make my older Mac useful by simply leaving it on all the time, with the external drives attached."

But what's your suggestion? Share your own thoughts and experiences. What NAS do you like for home use? What disks would you put in it?

And what have your experiences been?

The Los Angeles Times spoke to Ryan Kiskis, an environmentally-conscious owner of a hydrogen fuel cell vehicle (the Toyota Mirai): He soon learned that hydrogen refueling stations are scarce and reliably unreliable. He learned that apps to identify broken stations hand out bad information. He learned that the state of California, which is funding the station buildout, is far behind schedule — 200 stations were supposed to be up and running by 2025, but only 54 exist. And since Kiskis bought his car, the price of hydrogen has more than doubled, currently the equivalent of $15 a gallon of gasoline.

With fueling so expensive and stations so undependable, Kiskis — who lives in Pacific Palisades and works at Google in Playa Vista — drives a gasoline Jeep for everything but short trips around the neighborhood. "I've got a great car that sits in the driveway," he said. Bryan Caluwe can relate. The retired Santa Monican bought a Mirai in 2022. He likes his car too. "But it's been a total inconvenience." Hydrogen stations "are either down for mechanical reasons, or they're out of fuel, or, in the case of Shell, they've rolled up the carpet and gone home." And don't get Irving Alden started. He runs a commercial print shop in North Hollywood. He leases a Mirai. He too loves the car. But the refueling system? "It's a frickin' joke."

The three are part of a class action lawsuit filed in July against Toyota. They claim that Toyota salespeople misled them about the sorry state of California's hydrogen refueling system. "They were told the stations were convenient and readily available," said lawyer Nilofar Nouri of Beverly Hills Trial Attorneys. "That turned out to be far from reality." The class action now amounts to two dozen plaintiffs and growing, Nouri said. "We have thousands of these individuals in California who are stuck with this vehicle." Kiskis believes Toyota sales staff duped him — but says, "I'm just as irritated with the state of California" for poor oversight of the program it's funding...

Hyundai also sells a fuel cell car in California called the Nexo, and although the the suit is aimed only at Toyota, the hydrogen station situation affects Hyundai too.
Toyota told The Times it's "committed to customer satisfaction and will continue to evaluate how we can best support our customers. We will respond to the allegations in this lawsuit in the appropriate forum."

The article does note that the California Energy Commission awarded an extra $9.4 million to hydrogen station operators this year to cover "operations and maintenance" — and that hydrogen cars have their advantages. "The full tank range is 350 to 400 miles. A fill-up usually takes no more than five or 10 minutes.

"But unlike electric vehicles, you can't fill up at home. You have to travel to a dedicated fueling station...."

A 43-year-old Jordanian national, Hashem Younis Hashem Hnaihen, was arrested in Orlando, Florida, and charged with threatening to use explosives and destroying a solar power facility. According to the U.S. Department of Justice, the charges could result in up to 60 years in prison. Gizmodo reports: Hashem Younis Hashem Hnaihen allegedly smashed windows at local businesses in Florida, leaving behind threatening letters about their perceived support of Israel, and broke into a solar power generation facility in Wedgefield, Florida back in June. Hnaihen allegedly spent hours smashing solar panels, cutting various wires, and destroying critical electronic equipment, according to a press release from the DOJ issued Thursday.

Hnaihen was wearing a mask when he allegedly smashed the glass front doors of businesses that he thought supported Israel in June, the DOJ says, leaving behind "warning letters" that included lines like a desire to, "destroy or explode everything here in whole America. Especially the companies and factories that support the racist state of Israel." [...] Hnaihen was arrested on July 11, though news of his arrest was only made public today. Hnaihen entered a plea of not guilty and faces a maximum of 10 years in prison for each threat made against the Florida businesses and a maximum of 20 years for the destruction of an energy facility, according to the DOJ.

An anonymous reader quotes a report from Ars Technica: A patent lawsuit filed by one of 3D printing's most established firms against a consumer-focused upstart could have a big impact on the wider 3D-printing scene. In two complaints, (1, 2, PDF) filed in the Eastern District of Texas, Marshall Division, against six entities related to Bambu Lab, Stratasys alleges that Bambu Lab infringed upon 10 patents that it owns, some through subsidiaries like Makerbot (acquired in 2013). Among the patents cited are US9421713B2, "Additive manufacturing method for printing three-dimensional parts with purge towers," and US9592660B2, "Heated build platform and system for three-dimensional printing methods."

f There are not many, if any, 3D printers sold to consumers that do not have a heated bed, which prevents the first layers of a model from cooling during printing and potentially shrinking and warping the model. "Purge towers" (or "prime towers" in Bambu's parlance) allow for multicolor printing by providing a place for the filament remaining in a nozzle to be extracted and prevent bleed-over between colors. Stratasys' infringement claims also target some fundamental technologies around force detection and fused deposition modeling (FDM) that, like purge towers, are used by other 3D-printer makers that target entry-level and intermediate 3D-printing enthusiasts.

A company called ChargerHelp provides certified technicians to service EV charging stations (for a monthly fee). And they've just issued their annual "reliability report," reports CleanTechnica: Its analysis of more than 19 million data points collected from public and private sources in 2023 — including real-time assessments of 4,800 chargers from ChargerHelp technicians in the field — finds that â"software consistently overestimates station uptime, point-in-time status, and the ability to successfully charge a vehicle...."

[W]hen ChargerHelp technicians personally inspected 4,800 charge points, they found more than 10% were reported to be online but were in fact unable to complete a test charge... These findings by ChargerHelp are backed up by many smaller scale studies and surveys over the past several years that have found that claims of 95% uptime or greater do not match real world experience. A 2022 study of 657 chargers at 181 non-Tesla public charging sites in the San Francisco Bay Area determined that only 73% were capable of delivering a charge for more than two minutes, for example.

[I]mprovements have been slow to materialize. In fact, driver satisfaction with public charging has only worsened over the past year, according to the latest J.D. Power Electric Vehicle Experience Ownership Study, released in February. As the variety, price, and range of EVs available to US drivers have become more attractive, mistrust of public charging now constitutes the most significant headwind for EV adoption, J.D. Power says.
The report also "lists the biggest infrastructure pain points," reports the Verge, "including a failure to report broken stalls, inaccurate station status messages, aging equipment, and some habitually unreliable network providers (who go unnamed in the study, unfortunately)." EV chargers can break in many ways, the study concludes. These include broken retractor systems intended to protect the cable from getting mangled by vehicle tires, broken screens, and inoperable payment systems. There is also general damage to the cabinet and, of course, broken cables and connectors.

Across the chargers recorded, ChargerHelp calculates that actual uptime is only 73.7 percent, compared to the 84.6 percent self-reported by the EV network providers.

The Guardian reports Sunday, Ukraine's president, Volodymyr Zelenskiy, highlighted that Russian forces appeared to have started a fire in one of the cooling towers of the Zaporizhzhia nuclear power plant that it has occupied since the early days of the war. "Radiation levels are within norm," Zelenskiy said before accusing Russia of using its control of the site, whose six reactors are in shutdown mode, "to blackmail Ukraine, all of Europe, and the world". A Ukrainian official in Nikopol, the nearest town across the river Dnipro from the nuclear plant, added that according to "unofficial information", the fire was caused by setting fire to "a large number of automobile tyres" in a cooling tower. Video and pictures showed smoke dramatically billowing from one of the towers, although experts said they are not in use while the reactor is in shutdown mode, prompting some to question whether it was a way of trying raise the stakes over Ukraine's incursion into Russia.
From the CBC: The Russian management of the facility said emergency workers had contained the fire and that there was no threat of it spreading further. "The fire did not affect the operation of the station," it said. The six reactors at the plant located close to the front line of the war in Ukraine are not in operation but the facility relies on external power to keep its nuclear material cool and prevent a catastrophic accident. Moscow and Kyiv have routinely accused each other of endangering safety around it.

"Samsung's latest solid-state battery technology will power up premium EVs first, giving them up to 621 miles of range," writes PC Magazine: The new batteries — which promise to improve vehicle range, decrease charging times, and eliminate risk of battery fires — could go into mass production as soon as 2027. Multiple automakers have been reportedly testing samples. Samsung did not list any by name but it's worked with Hyundai, Stellantis, and General Motors, among others. "We supplied samples to customers from the end of last year to the beginning of this year and are receiving positive feedback," Samsung SDI VP Koh Joo-young said at SNE Battery Day 2024 in Seoul, according to Korean outlet The Elec and translated by Google.

Perhaps unsurprisingly, the batteries won't be cheap. They will initially go in "super premium EVs" and will offer 900 to 1,000 kilometers (559-621 miles) of range and improved safety... Samsung's presentation also reiterated previously announced plans to create batteries that can charge in nine minutes and last 20 years by 2029.
More details from Notebookcheck: According to Samsung SDI's VP, automakers are interested in its solid-state battery packs because they are smaller, lighter, and much safer than what's in current electric cars. Apparently, they are also rather expensive to produce, since it warns that they will first go into the "super premium" EV segment. Those Samsung defines as luxury electric cars that can cover more than 600 miles on a charge.

Samsung's oxide solid-state battery technology is rated for an energy density of about 500 Wh/kg, which is about double the density of mainstream EV batteries. Those have capacities that already allow more than 300 miles on a charge, so 600 miles of range in a similar footprint is not out of the question, but the issue is production costs.
Thanks to Slashdot reader npetrov for sharing the news.

The Defense Advanced Research Projects Agency (DARPA) is exploring the possibility of directly converting radiation from nuclear reactors into electricity using radiovoltaics, a technology that could potentially revolutionize nuclear power generation by moving beyond traditional steam turbine methods. The agency is requesting information and suggestions on this topic in an RFI released on August 1st. Nuclear News reports: There's got to be a better way": Methods to convert the energy of nuclear fission reactions and the decay of radioisotopes into electricity have not evolved since the invention of radioisotope power systems and fission reactors over 70 years ago and remain unoptimized," the RFI says. They rely on thermal heat transfer, and "in each step of this indirect conversion method neutrons, heat, and energy are lost to the shielding material, working fluid, and other system materials." Advanced reactor designs that use alternative coolants, including helium, sodium, and salts, would still use what DARPA calls "heritage nuclear power conversion technology" with water and steam as the working fluids, as would the fusion power plants being planned today.

Why now? Tabitha Dodson, the program manager for DARPA DSO, which is launching the RFI, told Nuclear News that "two big things" are driving the interest. "One is the extreme surge of investment in small and advanced nuclear technologies, such as in fusion and space reactors, which do not have a concurrent pairing of advanced power generation methods that doesn't involve liquid-based heat transfer," she said. "Next, there has been an order of magnitude improvement in radiation tolerance and efficiency for voltaics in recent years with encouraging performance that indicates radiovoltaics could scale up as an array usable in nuclear reactors." [...]

What is the ask?: The RFI asks: "Is it possible to achieve [a] direct energy conversion nuclear power system, ranging in power from 10s of watts electric (We) to 100s of kWe?" DARPA wants information "on the potential to improve specific power greater than 1 We/kg conversion from watts-thermal per radiation emission product," and information on the potential to improve damage tolerance of the voltaic to nuclear radiation to reach an operating lifetime comparable to the life of its nuclear source, on the scale of decades. "We will learn what our boundary conditions are when respondents tell us what technologies in the field of voltaics are possible, and we'll use that to see if there is sufficient scientific rationale make a case to present for further DARPA investment," Dodson said. "I also hope people are going to start thinking about nuclear systems that use electromagnetic versus thermal-kinetic methods to harvest nuclear energetic reactions."

An anonymous reader quotes a report from Ars Technica: Inertial confinement fusion is one method for generating energy through nuclear fusion, albeit one plagued by all manner of scientific challenges (although progress is being made). Researchers at LeHigh University are attempting to overcome one specific bugbear with this approach by conducting experiments with mayonnaise placed in a rotating figure-eight contraption. They described their most recent findings in a new paper published in the journal Physical Review E with an eye toward increasing energy yields from fusion.

The work builds on prior research in the LeHigh laboratory of mechanical engineer Arindam Banerjee, who focuses on investigating the dynamics of fluids and other materials in response to extremely high acceleration and centrifugal force. In this case, his team was exploring what's known as the "instability threshold" of elastic/plastic materials. Scientists have debated whether this comes about because of initial conditions, or whether it's the result of "more local catastrophic processes," according to Banerjee. The question is relevant to a variety of fields, including geophysics, astrophysics, explosive welding, and yes, inertial confinement fusion. [...]

The problem is that hydrodynamic instabilities tend to form in the plasma state -- Banerjee likens it to "two materials [that] penetrate one another like fingers" in the presence of gravity or any accelerating field -- which in turn reduces energy yields. The technical term is a Rayleigh-Taylor instability, which occurs between two materials of different densities, where the density and pressure gradients move in opposite directions. Mayonnaise turns out to be an excellent analog for investigating this instability in accelerated solids, with no need for a lab setup with high temperature and pressure conditions, because it's a non-Newtonian fluid. "We use mayonnaise because it behaves like a solid, but when subjected to a pressure gradient, it starts to flow," said Banerjee. "As with a traditional molten metal, if you put a stress on mayonnaise, it will start to deform, but if you remove the stress, it goes back to its original shape. So there's an elastic phase followed by a stable plastic phase. The next phase is when it starts flowing, and that's where the instability kicks in." In 2019, Banerjee's team conducted experiments that "involved pouring Hellman's Real Mayonnaise [...] into a Plexiglass container and then creating wavelike perturbations in the mayo," writes Ars' Jennifer Ouellette. "One experiment involved placing the container on a rotating wheel in the shape of a figure eight and tracking the material with a high-speed camera, using an image processing algorithm to analyze the footage. Their results supported the claim that the instability threshold is dependent on initial conditions, namely amplitude and wavelength."

"This latest paper sheds more light on the structural integrity of fusion capsules used in inertial confinement fusion, taking a closer look at the material properties, the amplitude and wavelength conditions, and the acceleration rate of such materials as they hit the Rayleigh-Taylor instability threshold."

An anonymous reader quotes a report from Wired: Security flaws in your computer's firmware, the deep-seated code that loads first when you turn the machine on and controls even how its operating system boots up, have long been a target for hackers looking for a stealthy foothold. But only rarely does that kind of vulnerability appear not in the firmware of any particular computer maker, but in the chips found across hundreds of millions of PCs and servers. Now security researchers have found one such flaw that has persisted in AMD processors for decades, and that would allow malware to burrow deep enough into a computer's memory that, in many cases, it may be easier to discard a machine than to disinfect it. At the Defcon hacker conference tomorrow, Enrique Nissim and Krzysztof Okupski, researchers from the security firm IOActive, plan to present a vulnerability in AMD chips they're calling Sinkclose. The flaw would allow hackers to run their own code in one of the most privileged modes of an AMD processor, known as System Management Mode, designed to be reserved only for a specific, protected portion of its firmware. IOActive's researchers warn that it affects virtually all AMD chips dating back to 2006, or possibly even earlier.

Nissim and Okupski note that exploiting the bug would require hackers to already have obtained relatively deep access to an AMD-based PC or server, but that the Sinkclose flaw would then allow them to plant their malicious code far deeper still. In fact, for any machine with one of the vulnerable AMD chips, the IOActive researchers warn that an attacker could infect the computer with malware known as a "bootkit" that evades antivirus tools and is potentially invisible to the operating system, while offering a hacker full access to tamper with the machine and surveil its activity. For systems with certain faulty configurations in how a computer maker implemented AMD's security feature known as Platform Secure Boot -- which the researchers warn encompasses the large majority of the systems they tested -- a malware infection installed via Sinkclose could be harder yet to detect or remediate, they say, surviving even a reinstallation of the operating system. Only opening a computer's case, physically connecting directly to a certain portion of its memory chips with a hardware-based programming tool known as SPI Flash programmer and meticulously scouring the memory would allow the malware to be removed, Okupski says. Nissim sums up that worst-case scenario in more practical terms: "You basically have to throw your computer away." In a statement shared with WIRED, AMD said it "released mitigation options for its AMD EPYC datacenter products and AMD Ryzen PC products, with mitigations for AMD embedded products coming soon."

The company also noted that it released patches for its EPYC processors earlier this year. It did not answer questions about how it intends to fix the Sinkclose vulnerability.

According to Agrarheute, hackers launched a cyberattack on a Swiss farmer's computer system, disrupting the flow of vital data from a milking robot. Tragically, this led to the death of a cow and her calf. From the report (translated from German into English): According to the CSO, hackers attacked the computers of a farmer from Hagendorn. The dairy farmer's milking robot was also connected to these computers. When the animal owner stopped receiving milking data, he initially suspected a dead zone. But then he learned from the manufacturer of his milking system that he had been hacked. Apparently it was a ransomware attack. The hackers demanded $10,000 to decrypt the data. The farmer considered whether he should give in to the cyber criminals' demands. At first he thought the data on the amount of milk produced was bearable. In addition, the milking robot also worked without a computer or network connection. The cows could therefore continue to be milked.

For one cow , however, the cyberattack ended tragically. The farmer normally receives vital data from his cows via the system. This is particularly important and critical for pregnant animals. One cow's calf died in the womb. Because the computer was paralyzed, Bircher was unable to recognize the emergency in time. They tried everything to at least save the cow, but in the end it had to be put down. Overall, the attack caused monetary damages amounting to the equivalent of over 6,400 euros, mainly due to veterinary costs and the purchase of a new computer. However, the hackers came away empty-handed.

According to Bloomberg's Mark Gurman (paywalled), Apple plans to launch a completely redesigned Mac mini with M4 and M4 Pro chips later this year. MacRumors reports: The new Mac mini will be the first major design change to the machine since 2010, making it Apple's smallest ever desktop computer. The new Mac mini will apparently approach the size of an Apple TV, but it may be slightly taller than the current model, which is 1.4 inches high. It will continue to feature an aluminum shell. Individuals working on the new device apparently say that it is "essentially an iPad Pro in a small box."

Apple is said to have tested Mac mini models with at least three USB-C ports on the back, as well as an area for the power cable and an HDMI port. There will continue to be two versions of the Mac mini: one with the standard M4 chip, similar to the iPad Pro, and one with an M4 Pro chip. The base model is set to begin shipping from suppliers this month ahead of release later in the year, while the high-end model will not be ready until October.

"Sonos is delaying two hardware releases originally planned for later this year as it deploys an all-hands-on-deck approach to fixing the app," writes The Verge's Chris Welch. The company released a redesigned mobile app on May 7th that has been riddled with flaws and missing features. Sonos also entered the crowded headphone market in May with the launch of its Ace headphones, but it was immediately "overshadowed" by problems with the new Sonos app, according to Sonos CEO Patrick Spence. The Verge reports: "I will not rest until we're in a position where we've addressed the issues and have customers raving about Sonos again," Spence said during the afternoon earnings call. "We believe our focus needs to be addressing the app ahead of everything else," he continued."This means delaying the two major new product releases we had planned for Q4 until our app experience meets the level of quality that we, our customers, and our partners expect from Sonos." One of those two products is almost certainly Sonos' next flagship soundbar, codenamed Lasso, which I revealed last month. "These products were ready to ship in Q4," Spence said in response to a question on the call.

He also went in-depth on the app issues and how Sonos plans to fix them. Spence remains adamant that overhauling the app and its underlying infrastructure "was the right thing to do" for the company's future; the new app "has a modular developer platform based on modern programming languages that will allow us to drive more innovation faster," he said. But Spence also now acknowledges that the project was rushed. "With the app, my push for speed backfired," he said. "As we rolled out the new software to more and more users, it became evident that there were stubborn bugs we had not discovered in our testing. As a result, far too many of our customers are having an experience that is worse than what they previously had." [...]

For now, Sonos is turning to some longtime experts for help. "I've asked Nick Millington, the original software architect of the Sonos experience, to do whatever it takes to address the issues with our new app," Spence said. Sonos board member Tom Conrad is helping to oversee the app improvement effort and "ensure" things stay on the right track.

An anonymous reader quotes a report from TechCrunch: In a newly published paper titled "Achieving Human Level Competitive Robot Table Tennis," Google's DeepMind Robotics team is showcasing its own work on the game. The researchers have effectively developed a "solidly amateur human-level player" when pitted against a human component. During testing, the table tennis bot was able to beat all of the beginner-level players it faced. With intermediate players, the robot won 55% of matches. It's not ready to take on pros, however. The robot lost every time it faced an advanced player. All told, the system won 45% of the 29 games it played. "This is the first robot agent capable of playing a sport with humans at human level and represents a milestone in robot learning and control," the paper claims. "However, it is also only a small step towards a long-standing goal in robotics of achieving human level performance on many useful real world skills. A lot of work remains in order to consistently achieve human-level performance on single tasks, and then beyond, in building generalist robots that are capable of performing many useful tasks, skillfully and safely interacting with humans in the real world."

The robot's biggest trouble areas are responding to fast balls, high and low balls. It also has trouble with backhand and the ability to read the spin on an incoming ball. Here's how the researchers plan to address the issue with fast balls: "To address the latency constraints that hinder the robot's reaction time to fast balls, we propose investigating advanced control algorithms and hardware optimizations. These could include exploring predictive models to anticipate ball trajectories or implementing faster communication protocols between the robot's sensors and actuators."