quonset writes: Just over two weeks ago, NASA figured out why its Voyager 1 spacecraft stopped sending useful data. They suspected corrupted memory in its flight data system (FDS) was the culprit. Today, for the first time since November, Voyager 1 is sending useful data about its health and the status of its onboard systems back to NASA. How did NASA accomplish this feat of long distance repair? They broke up the code into smaller pieces and redistributed them throughout the memory.

From NASA: "... So they devised a plan to divide the affected code into sections and store those sections in different places in the FDS. To make this plan work, they also needed to adjust those code sections to ensure, for example, that they all still function as a whole. Any references to the location of that code in other parts of the FDS memory needed to be updated as well. The team started by singling out the code responsible for packaging the spacecraft's engineering data. They sent it to its new location in the FDS memory on April 18. A radio signal takes about 22 1/2 hours to reach Voyager 1, which is over 15 billion miles (24 billion kilometers) from Earth, and another 22 1/2 hours for a signal to come back to Earth. When the mission flight team heard back from the spacecraft on April 20, they saw that the modification worked: For the first time in five months, they have been able to check the health and status of the spacecraft. During the coming weeks, the team will relocate and adjust the other affected portions of the FDS software. These include the portions that will start returning science data.

An anonymous reader quotes a report from the Washington Post: In sunny California, solar panels are everywhere. They sit in dry, desert landscapes in the Central Valley and are scattered over rooftops in Los Angeles's urban center. By last count, the state had nearly 47 gigawatts of solar power installed -- enough to power 13.9 million homes and provide over a quarter of the Golden State's electricity. But now, the state and its grid operator are grappling with a strange reality: There is so much solar on the grid that, on sunny spring days when there's not as much demand, electricity prices go negative. Gigawatts of solar are "curtailed" -- essentially, thrown away. In response, California has cut back incentives for rooftop solar and slowed the pace of installing panels. But the diminishing economic returns may slow the development of solar in a state that has tried to move to renewable energy. And as other states build more and more solar plants of their own, they may soon face the same problems.

Curtailing solar isn't technically difficult -- according to Paul Denholm, senior research fellow at the National Renewable Energy Laboratory, it's equivalent to flipping a switch for grid operators. But throwing away free power raises electricity prices. It has also undercut the benefits of installing rooftop solar. Since the 1990s, California has been paying owners of rooftop solar panels when they export their energy to the grid. That meant that rooftop solar owners got $0.20 to $0.30 for each kilowatt-hour of electricity that they dispatched. But a year ago, the state changed this system, known as "net-metering," and now only compensates new solar panel owners for how much their power is worth to the grid. In the spring, when the duck curve is deepest, that number can dip close to zero. Customers can get more money back if they install batteries and provide power to the grid in the early evening or morning.

The change has sparked a huge backlash from Californians and rooftop solar companies, which say that their businesses are flagging. Indeed, Wood Mackenzie predicts that California residential solar installations in 2024 will fall by around 40 percent. Some state politicians are now trying to reverse the rule. "Under the CPUC's leadership California is responsible for the largest loss of solar jobs in our nation's history," Bernadette del Chiaro, the executive director of the California Solar and Storage Association, said in a statement referring to California's public utility commission. But experts say that it reflects how the economics of solar are changing in a state that has gone all-in on the technology. [...] To cope, [California's grid operator, known as CAISO] is selling some excess power to nearby states; California is also planning to install additional storage and batteries to hold solar power until later in the afternoon. Transmission lines that can carry electricity to nearby regions will also help -- some of the lost power comes from regions where there simply aren't enough power lines to carry a sudden burst of solar. Denholm says the state is starting to take the steps needed to deal with the glut. "There are fundamental limits to how much solar we can put on the grid before you start needing a lot of storage," Denholm said. "You can't just sit around and do nothing." Further reading: The Energy Institute discusses this problem in a recent blog post.

Since 2020, the residential electricity rates in California have risen by as much as 40% after adjusting for inflation. While there's been "a lot of finger-pointing about the cause of these increases," the authors note that the impact on rates is multiplied when customers install their own generation and buy fewer kilowatts-hours from the grid because those households "contribute less towards all the fixed costs in the system." These fixed costs include: vegetation management, grid hardening, distribution line undergrounding, EV charging stations, subsidies for low income customers, energy efficiency programs, and the poles and wires that we all rely on whether we are taking electricity off the grid or putting it onto the grid from our rooftop PV systems.

"Since those fixed costs still need to be paid, rates go up, shifting costs onto the kWhs still being bought from the grid."

Data scientist Antoine Mayerowitz, PhD, applied Vilfredo Pareto's (the early 20th-century Italian economist) theories to Mario Kart 8 Deluxe to determine the best racer combinations. "When you break down the build options (including driver stats and various vehicle details) in Mario Kart 8 Deluxe, there are over 700,000 possible combinations," notes Engadget. "But once you eliminate duplicates that differ only in appearance, you can narrow it down to 'only' 25,704 possibilities." From the report: Pareto's theories, most notably the Pareto front, help us navigate the complexities of choice. They can pinpoint the solutions with the most balanced strengths and the fewest trade-offs. Pareto's work is about efficiency and effectiveness. [...] Mayerowitz's Pareto front analysis lets you narrow your possibilities down to the 14 most efficient. And it turns out the game's top players were onto something: One of the combinations with the most ideal balance of speed, acceleration and mini-turbo is Cat Peach driving the Teddy Buggy, roller tires and cloud glider -- one already favored among Mario Kart 8 competitors.

Of course, if that combination isn't your cup of tea, there are others that allow you to stay within the Pareto front's optimal range. As Eurogamer points out, Donkey Kong, Wario (my old standby, mostly because he makes me laugh) and Princess Peach are often highlighted as drivers, and you can use Mayerowitz's data fields to find the best matching vehicles. Keep in mind that others have identical stats, so racers like Villager (female), Inkling Girl and Diddy Kong are separated only by appearances.

To find your ideal racer, you can head over to Mayerowitz's website. There, you can enter your most prized stats and view the combos that give you the best balance (those highlighted in yellow), according to Pareto's theories.

According to French business magazine Challenges, Apple has acquired Datakalab -- a Paris-based startup specializing in artificial intelligence compression and computer vision technology. 9to5Mac reports: Datakalab described itself as "experts in low power, runtime efficient, and deep learning algorithms" that work on device. On its LinkedIn page, Datakalab highlights "industry leading compression and adaptation to deploy embedded computer vision that is fast, cost-effective and precise." Prior to the Apple acquisition had between 10 and 20 employees.

From Datakalab's now-defunct website: "Datakalab is a French technology company that develops computer image analysis algorithms to measure flows in public space. The images are instantly transformed into anonymized statistical data processed locally in 100ms. Datakalab does not store any images or personal data and only keeps statistical data. Datakalab products are built according to the principle of 'Privacy by Design.'"

While neither Apple nor DatakaLab have acknowledged the acquisition, Challenges says that the deal was reported to the European Commission this month. The report says that Datakalab's two founders did not join Apple, but multiple other employees did make the jump. Datakalab also held multiple patents related to AI compression and vision technology. The acquisition makes perfect sense given Apple's rumored ambitions to run its upcoming AI-related features in iOS 18 "entirely on device."

An anonymous reader quotes a report from The Register: Huawei plans to expand its native HarmonyOS smartphone platform worldwide, despite coming under US-led sanctions that have deprived it of access to key technologies. "We will work hard to build up the HarmonyOS app ecosystem in the China market first, then, from country to country, we will start gradually pushing it out to other parts of the world," Huawei's rotating chairman Erik Xu told attendees at its 21st Analyst Summit in Shenzhen last week. Part of this process will involve porting apps to HarmonyOS and encouraging other app developers to code for the platform.

"In the China market, Huawei smartphone users spend 99 percent of their time on about 5,000 apps. So we decided to spend 2024 porting these apps over to HarmonyOS first in our drive to truly unify the OS and the app ecosystem. We are also encouraging other apps to be ported over to HarmonyOS," Xu said. According to Huawei's rotating chairman, more than 4,000 of those apps are already in the process of being transferred, and the company is "communicating with developers" on the 1,000 or so apps that remain. "This is a massive undertaking, but we have broad support in the industry and from many app developers," he claimed. "Once we have these first 5,000 Android apps -- and thousands of other apps -- up and running on HarmonyOS, we will have a real HarmonyOS: a third mobile operating system for the world," Xu said. That number could reach up to 1 million apps in the future, he claimed. According to Counterpoint Research, HarmonyOS accounted for 4 percent of global market share in the fourth quarter of 2023, and exceeded 16 percent market share in China. That makes it the third largest mobile OS by handset sales, behind Android and iOS.

It remains to be seen whether there will be much of a market for HarmonyOS outside of China, given the current sanctions and sour US/EU-China relations.

Jess Weatherbed reports via The Verge: Swedish gaming conglomerate Embracer Group announced plans on Monday to split itself into three distinct games and entertainment companies: Asmodee Group, Coffee Stain & Friends, and Middle-earth Enterprises & Friends. These will be separate, publicly listed companies, according to Embracer, which says the move will allow "each entity to better focus on their respective core strategies and offer more differentiated and distinct equity stories for existing and new shareholders." [...]

The three new companies will be broken down as follows:

- Middle-earth Enterprises & Friends: This company, which will be renamed from Embracer Group, is described as a "creative powerhouse in AAA game development and publishing" that will retain ownership of the Dead Island, Killing Floor, Kingdom Come Deliverance, Tomb Raider, and The Lord of the Rings IPs.
- Asmodee Group: a new arm dedicated to publishing and distributing tabletop games. The existing catalog includes established titles like Ticket to Ride, 7 Wonders, Azul, CATAN, Dobble, and Exploding Kittens. Asmodee is also developing licensed tabletop games based on The Lord of the Rings, Marvel, Game of Thrones, and Star Wars franchises. Embracer anticipates the spinoff and share listings will take place "within 12 months."
- Coffee Stain & Friends: described as a "diverse gaming entity" that will focus on indie, mid-market, and free-to-play games. Properties sitting under this new company include Deep Rock Galactic, Goat Simulator, Satisfactory, Wreckfest, Teardown, and Valheim. The share listings are projected to become available in 2025.

The European Union has opened a second formal investigation into TikTok under its Digital Services Act (DSA), an online governance and content moderation framework. The investigation centers around TikTok Lite's "Task and Reward" feature that may harm mental health, especially among minors, by promoting addictive behavior. TechCrunch reports: The Commission also said it's minded to impose interim measures that could force the company to suspend access to the TikTok Lite app in the EU while it investigates concerns the app poses mental health risks to users. Although the EU has given TikTok until April 24 to argue against the measure -- meaning the app remains accessible for now. Penalties for confirmed violations of the DSA can reach up to 6% of global annual turnover. So ByeDance, TikTok's parent, could face hefty fines if EU enforcers do end up deciding it has broken the law.

The EU's first TikTok probe covers multiple issues including the protection of minors, advertising transparency, data access for researchers, and the risk management of addictive design and harmful content. Hence it said the latest investigation will specifically focus on TikTok Lite, a version of the video sharing platform which launched earlier this month in France and Spain and includes a mechanism that allows users to earn points for doing things like watching or liking videos. Points earned through TikTok Lite can be exchanged for things like Amazon gift vouchers or TikTok's own digital currency for gifting to creators. The Commission is worried this so-called "task and reward" feature could negatively impact the mental health of young users by "stimulating addictive behavior."

The EU wrote that the second probe will focus on TikTok's compliance with the DSA obligation to conduct and submit a risk assessment report prior to the launch of the "Task and Reward Lite" program, with a particular focus on negative effects on mental health, including minors' mental health. It also said it will look into measures taken by TikTok to mitigate those risks. In a press release announcing the action, the EU said ByeDance failed to produce a risk assessment about the feature which it had asked to see last week -- when it gave the company 24 hours to produce the document. Since it failed to submit the risk assessment paperwork on April 18 the Commission wrote that it suspects a "prima facie infringement of the DSA."

An anonymous reader quotes a report from Ars Technica: Home Assistant, until recently, has been a wide-ranging and hard-to-define project. The open smart home platform is an open source OS you can run anywhere that aims to connect all your devices together. But it's also bespoke Raspberry Pi hardware, in Yellow and Green. It's entirely free, but it also receives funding through a private cloud services company, Nabu Casa. It contains tiny board project ESPHome and other inter-connected bits. It has wide-ranging voice assistant ambitions, but it doesn't want to be Alexa or Google Assistant. Home Assistant is a lot.

After an announcement this weekend, however, Home Assistant's shape is a bit easier to draw out. All of the project's ambitions now fall under the Open Home Foundation, a non-profit organization that now contains Home Assistant and more than 240 related bits. Its mission statement is refreshing, and refreshingly honest about the state of modern open source projects. "We've done this to create a bulwark against surveillance capitalism, the risk of buyout, and open-source projects becoming abandonware," the Open Home Foundation states in a press release. "To an extent, this protection extends even against our future selves -- so that smart home users can continue to benefit for years, if not decades. No matter what comes." Along with keeping Home Assistant funded and secure from buy-outs or mission creep, the foundation intends to help fund and collaborate with external projects crucial to Home Assistant, like Z-Wave JS and Zigbee2MQTT.

Home Assistant's ambitions don't stop with money and board seats, though. They aim to "be an active political advocate" in the smart home field, toward three primary principles:

- Data privacy, which means devices with local-only options, and cloud services with explicit permissions
- Choice in using devices with one another through open standards and local APIs
- Sustainability by repurposing old devices and appliances beyond company-defined lifetimes

Notably, individuals cannot contribute modest-size donations to the Open Home Foundation. Instead, the foundation asks supporters to purchase a Nabu Casa subscription or contribute code or other help to its open source projects. Further reading: The Verge's interview with Home Assistant founder Paulus Schoutsen

Scorching weather has baked Europe in more days of "extreme heat stress" than its scientists have ever seen. The Guardian: Heat-trapping pollutants that clog the atmosphere helped push temperatures in Europe last year to the highest or second-highest levels ever recorded, according to the EU's Earth-watching service Copernicus and the World Meteorological Organization (WMO). Europeans are suffering with unprecedented heat during the day and are stressed by uncomfortable warmth at night. The death rate from hot weather has risen 30% in Europe in two decades, the joint State of the Climate report from the two organisations found.

"The cost of climate action may seem high," said WMO secretary-general Celeste Saulo, "but the cost of inaction is much higher." The report found that temperatures across Europe were above average for 11 months of 2023, including the warmest September since records began. The hot and dry weather fuelled large fires that ravaged villages and spewed smoke that choked far-off cities. The blazes that firefighters battled were particularly fierce in drought-stricken southern countries such as Portugal, Spain and Italy. Greece was hit by the largest wildfire recorded in the EU, which burned 96,000 hectares of land, according to the report. Heavy rain also led to deadly floods. Europe was about 7% wetter in 2023 than the average over the last three decades, the report found, and one-third of its river network crossed the "high" flood threshold. One-sixth hit "severe" levels.

AmiMoJo writes: Knowing your ABCs is essential to academic success, but having a last name starting with A, B or C might also help make the grade. An analysis by University of Michigan researchers of more than 30 million grading records from U-M finds students with alphabetically lower-ranked names receive lower grades. This is due to sequential grading biases and the default order of students' submissions in Canvas -- the most widely used online learning management system -- which is based on alphabetical rank of their surnames.

What's more, the researchers found, those alphabetically disadvantaged students receive comments that are notably more negative and less polite, and exhibit lower grading quality measured by post-grade complaints from students.

Amazon confirmed it is ending Prime Air drone delivery operations in Lockeford, California. The Central California town of 3,500 was the company's second U.S. drone delivery site, after College Station, Texas. Operations were announced in June 2022. From a report: The retail giant is not offering details around the setback, only noting, "We'll offer all current employees opportunities at other sites, and will continue to serve customers in Lockeford with other delivery methods. We want to thank the community for all their support and feedback over the past few years."

College Station deliveries will continue, along with a forthcoming site in Tolleson, Arizona set to kick off deliveries later this year. Tolleson, a city of just over 7,000, is located in Maricopa County, in the western portion of the Phoenix metropolitan area. Prime Air's arrival brings same-day deliveries to Amazon customers in the region, courtesy of a hybrid fulfillment center/delivery station. The company says it will be contacting impacted customers when the service is up and running. There's no specific information on timing beyond "this year," owing, in part, to ongoing negotiations with both local officials and the FAA required to deploy in the airspace.

In a huge move for the mixed reality industry, Meta announced today that it's opening the Quest's operating system to third-party companies, allowing them to build headsets of their own. From a report: Think of it like moving the Quest's ecosystem from an Apple model, where one company builds both the hardware and software, to more of a hardware free-for-all like Android. The Quest OS is being rebranded to "Meta Horizon OS," and at this point it seems to have found two early adopters. ASUS's Republic of Gamers (ROG) brand is working on a new "performance gaming" headsets, while Lenovo is working on devices for "productivity, learning and entertainment." (Don't forget, Lenovo also built the poorly-received Oculus Rift S.)

As part of the news, Meta says it's also working on a limited-edition Xbox "inspired" Quest headset. (Microsoft and Meta also worked together recently to bring Xbox cloud gaming to the Quest.) Meta is also calling on Google to bring over the Google Play 2D app store to Meta Horizon OS. And, in an effort to bring more content to the Horizon ecosystem, software developed through the Quest App Lab will be featured in the Horizon Store. The company is also developing a new spatial framework to let mobile developers created mixed reality apps.

A Shanghai flying taxi company says that China's "low altitude" industry is edging ahead of western rivals, thanks to more supportive regulators, technological breakthroughs and cut-throat competition in the Chinese logistics sector. From a report: The total market created by electric vertical take-off and landing, or eVTOL, aircraft is forecast to be worth $1.5tn a year by 2040 in a base-case assessment by Morgan Stanley analysts, with potential customers across airlines, logistics, emergency services, agriculture, tourism and security operations. China's AutoFlight Group won airworthiness certification from the Civil Aviation Administration of China in late March for the design and parts for its unmanned CarryAll aircraft -- a global first for an eVTOL weighing more than 1 tonne being cleared by regulators.

Kellen Xie, AutoFlight vice-president, said that while the company is also seeking similar approvals in Europe, the CAAC has been "quite supportive" of the new industry. "They work longer hours... they are determined to actually speed up the process of bringing this new technology into reality," he said. EVTOL aircraft take off vertically, like helicopters, but then transition into fixed-wing mode for travelling at higher speeds, offering faster and more efficient transport than ground-based options. Analysts point to a labyrinth of regulatory and safety hurdles, but supporters say the technology could fundamentally reshape how humans travel and freight is moved, in a level of disruption akin to the introduction of mass-market cars and commercial airlines. Most eVTOL aircraft are still in the testing stages and vary widely in terms of how fast and high they can fly and how much weight they can carry.

Yet another international cop shop has come out swinging against end-to-end encryption - this time it's Europol which is urging an end to implementation of the tech for fear police investigations will be hampered by protected DMs. The Register: In a joint declaration of European police chiefs published over the weekend, Europol said it needs lawful access to private messages, and said tech companies need to be able to scan them (ostensibly impossible with E2EE implemented) to protect users. Without such access, cops fear they won't be able to prevent "the most heinous of crimes" like terrorism, human trafficking, child sexual abuse material (CSAM), murder, drug smuggling and other crimes.

"Our societies have not previously tolerated spaces that are beyond the reach of law enforcement, where criminals can communicate safely and child abuse can flourish," the declaration said. "They should not now." The joint statement, which was agreed to in cooperation with the UK's National Crime Agency, isn't exactly making a novel claim. It's nearly the same line of reasoning that the Virtual Global Taskforce, an international law enforcement group founded in 2003 to combat CSAM online, made last year when Meta first first started talking about implementing E2EE on Messenger and Instagram.

Apple has stopped production of FineWoven accessories, according to reliable Apple leaker and prototype collector known as "Kosutami." From a report: In a post on X (formerly Twitter), Kosutami explained that Apple has stopped production of FineWoven accessories due to its poor durability. The company may move to another non-leather material for its premium accessories in the future. Apple introduced FineWoven, a soft fabric material, last year. The company claimed that the material is made of 68 percent post-consumer content and is overall more environmentally friendly compared to the company's previous line of leather accessories. As part of the introduction of FineWoven case, Apple also discontinued the use of leather for new Apple accessories. Reviewers didn't like FineWoven, calling it "bad. Like, really bad."