"In the past, Apple has taken an opposing stance on letting consumers repair their devices. Some of that is changing with Apple's new announcement," writes Slashdot reader wakeboarder. "Apple will sell components like batteries and screens to allow consumers to repair their own devices. This will help reduce e-waste, but will also allow Apple to control the market for parts -- not exactly what right-to-repair activists have fought for."

With that said, Apple "didn't change its policy out of the goodness of its heart," writes The Verge's Maddie Stone. The timing of this announcement was "deliberate," considering Wednesday was a key deadline in the fight over a shareholder resolution environmental advocates filed with the company in September asking Apple to re-evaluate its stance on independent repair. The issue would've likely ended up at the Securities and Exchange Commission. From the report: Apple spokesperson Nick Leahy told The Verge that the program "has been in development for well over a year," describing it as "the next step in increasing customer access to Apple genuine parts, tools, and manuals." Leahy declined to say whether the timing of the announcement was influenced by shareholder pressure. Activist shareholders believe that it was. "The timing is definitely no coincidence," says Annalisa Tarizzo, an advocate with Green Century, the mutual fund company that filed the right-to-repair resolution with Apple in September. As a result of today's announcement, Green Century is withdrawing its resolution, which asked Apple to "reverse its anti repair practices" and evaluate the benefits of making parts and tools more available to consumers.

Apple's initial response to the Green Century resolution was less than conciliatory. Tarizzo says that on October 18 (30 days before the self service announcement), Apple submitted a "no action request" to the Securities and Exchange Commission asking the investor oversight body to block the proposal. According to Tarizzo, Apple's argument before the SEC was that the proposal -- that the company "prepare a report" on the environmental and social benefits of making its devices easier to fix -- ran afoul of shareholder proposal guidance by infringing on Apple's normal business operations. However, earlier this month, the SEC issued new guidance concerning no-action requests that includes a carve-out for proposals that raise "significant social policy issues." In other words, shareholders can bring resolutions that affect a company's day-to-day business operations if those proposals raise issues with significant societal impact. Tarizzo believes that this change made it much more likely the SEC would side with Green Century rather than Apple, particularly since the mutual fund company connected the dots between increased access to repair and the fight against climate change. (Using devices as long as possible through maintenance and repair is one of the best ways to reduce the climate impact of consumer technology since the majority of the emissions associated with our gadgets occur during the manufacturing stage.)

"It wasn't a guarantee that the SEC would side with us, but the new guidance indicates it's very likely we would prevail," Tarizzo says. "It effectively took away a lot of Apple's leverage in the process." Now, Apple seems to have regained some leverage by announcing its new Self Service Repair program on the same day that Green Century was required to respond to the no-action request. Instead of arguing that the SEC should allow the shareholder resolution to move forward, Green Century is now withdrawing the resolution entirely.

phalse phace shares a report from The Verge: British Satellite broadcaster Sky is moving away from the satellite dishes that have defined its TV service for decades. Sky Glass is launching today, an ambitious effort to sell television sets that stream Sky TV content over Wi-Fi directly to consumers. There's no external box, no satellite dish, and no need for a soundbar. Although announced for the UK today, Sky has global aspirations for Glass TV "built on technology borne of the collaboration as part of the Comcast Corporation." As such, we might be looking at the platform underpinning Comcast's rumored XClass TVs for the US. Sky Glass TVs will be available in three sizes: 43-inch, 55-inch, and 65-inch. Each 4K TV will stream Sky's TV channels, and integrates in voice control (Hello Sky) and 21 apps to access additional content like Netflix, Spotify, or Disney Plus.

Sky hasn't named the TV manufacturer it partnered with yet, but the full specifications include a UHD Quantum Dot display, support for Dolby Vision, HDR 10, HLG, three HDMI 2.1 ports, and a single USB-C port. The rather chubby TV fits six speakers for up to 215W of Dolby Atmos surround sound: 3 outward firing speakers, 2 upward, and 1 central subwoofer. There will also be five color options: white, pink, green, blue, and black. The price of a Sky Glass TV is designed to be baked into a monthly subscription to Sky's TV service, known as Sky Ultimate TV, but you can also pay for the TV upfront if you want to lower the monthly costs. Sky Ultimate TV includes access to Netflix and some basic Sky channels, but Sky Sports and Sky Cinema are separate add-ons. What you pay will depend on the size of TV and whether you want to spread payments. The report goes on to note Sky's collaboration with Microsoft to watch TV together with others. "Sky demonstrated a software experience that allows you to watch TV channels with others, and see each other's reactions to sport in real time," reports The Verge.

Furthermore, Sky claims it'll be the first TV manufacturer in the world to allow customers to "swap old Sky Glass TVs for newer models when they're available," the report adds.

Oracle's Java magazine takes a look at some current JDK Enhancement Proposals, "the vehicle of long standing for updating the Java language and the JVM." Today, concurrency in Java is delivered via nonlightweight threads, which are, for all intents, wrappers around operating-system threads... Project Loom aims to deliver a lighter version of threads, called virtual threads. In the planned implementation, a virtual thread is programmed just as a thread normally would be, but you specify at thread creation that it's virtual. A virtual thread is multiplexed with other virtual threads by the JVM onto operating system threads. This is similar in concept to Java's green threads in its early releases and to fibers in other languages... Because the JVM has knowledge of what your task is doing, it can optimize the scheduling. It will move your virtual thread (that is, the task) off the OS thread when it's idle or waiting and intelligently move some other virtual thread onto the OS thread. When implemented correctly, this allows many lightweight threads to share a single OS thread. The benefit is that the JVM, rather than the OS, schedules your task. This difference enables application-aware magic to occur behind the curtains...

Project Valhalla aims to improve performance as it relates to access to data items... by introducing value types, which are a new form of data type that is programmed like objects but accessed like primitives. Specifically, value types are data aggregates that contain only data (no state) and are not mutable. By this means, [value types] can be stored as a single array with only a single header field for the entire array and direct access to the individual fields...

Project Panama simplifies the process of connecting Java programs to non-Java components. In particular, Panama aims to enable straightforward communication between Java applications and C-based libraries...

Several Amber subprojects are still in progress.

Sealed classes, which have been previewed in the last few Java releases and are scheduled to be finalized in Java 17. Sealed classes (and interfaces) can limit which other classes or interfaces can extend or implement them...

Pattern matching in switches is a feature that will be previewed in Java 17...
The article concludes that Java's past and current projects "testify to how much Java has evolved and how actively the language and runtime continue to evolve."

The UK's leading funding agency has announced that all research it funds must be freely available for anyone to read.

Long-time Slashdot reader sandbagger shared this report from Science: The policy by the funder, UK Research and Innovation (UKRI), will expand on existing rules covering all research papers produced from its £8 billion in annual funding... About three-quarters of papers recently published from U.K. universities are open access, and UKRI's current policy gives scholars two routes to comply: Pay journals for "gold" open access, which makes a paper free to read on the publisher's website, or choose the "green" route, which allows them to deposit a near-final version of the paper on a public repository, after a waiting period of up to 1 year.

Publishers have insisted that an embargo period is necessary to prevent the free papers from peeling away their subscribers. But starting in April 2022, that yearlong delay will no longer be permitted.
The funder's executive champion for open research succinctly explained their rationale.

"Publicly funded research should be available for public use by the taxpayer."

Millions of Americans "are being instructed to use ID.me, along with its facial recognition software, to get their unemployment benefits," reports CNN. The software compares their photo ID with a selfie video they take on their phone with the company's software — but some privacy advocates are concerned: A rapidly growing number of U.S. states, including Colorado, California and New York, turned to ID.me in hopes of cutting down on a surge of fraudulent claims for state and federal benefits that cropped up during the pandemic alongside a tidal wave of authentic unemployment claims. As of this month, 27 states' unemployment agencies had entered contracts with ID.me, according to the company, with 25 of them already using its technology. ID.me said it is in talks with seven more...

The company's rapid advance at state unemployment agencies marks the latest chapter in the story of facial recognition software's spread across the United States. It also highlights how this controversial technology gained a foothold during the pandemic and now appears destined to remain part of our lives for the foreseeable future...

Several ID.me users told CNN Business about problems they had verifying their identities with the company, which ranged from the facial recognition technology failing to recognize their face to waiting for hours to reach a human for a video chat after encountering problems with the technology. A number of people who claim to have had issues with ID.me have taken to social media to beg the company for help with verification, express their own concerns about its face-data collection or simply rant, often in response to ID.me's own posts on Twitter... From ID.me's perspective, its service is making it easier for a wide range of people to access essential government services, as it avoids the common practice of using information gleaned from data brokers and credit bureaus as a means of checking identities. The company said this lets it give a green light to those who don't have a credit history, or may have changed their name, for instance — people who might otherwise have more trouble getting verified.

However, it doesn't sit well with employee and privacy advocates and civil rights groups interviewed by CNN Business. They have concerns about the facial recognition technology itself and for the ID.me verification process's reliance on access to a smartphone or computer and the internet, which may be out of reach for the people to whom unemployment dollars are most critical... ID.me said it does not sell user data — which includes biometric and related information such as selfies people upload, data related to facial analyses, and recordings of video chats users participate in with ID.me — but it does keep it. Biometric data, like the facial geometry produced from a user's selfie, may be kept for years after a user closes their account... In March, ID.me announced raising $100 million in funding from investors including hedge fund Viking Global Investors and CapitalG, which is Google parent company Alphabet's independent growth fund. With that funding round, ID.me said it was valued at $1.5 billion... "We're verifying more than 1% of the American adult population each quarter, and that's starting to compress more to like 45 or 50 days," Hall said. The company has more than 50 million users, he said, and signs up more than 230,000 new ones each day.
CNN also quotes a man who complains the state never gave him an option. "If I wanted unemployment, I had no choice but to do this."

How To Geek: To run Windows 3.1 on your iPad, you'll need to buy an app called iDOS 2 that's available in the App Store. Currently, it costs $4.99, which seems like a bargain considering what it can do. iDOS has a spotty history on the App Store. Way back in 2010, Apple pulled an earlier version of the app because it allowed people to run unapproved code loaded through iTunes. Last year, its author updated the app to pull DOS files from iCloud or the Files app, and Apple approved it. So far, it's still listed, so let's hope that it sticks.

After purchasing and installing iDOS 2 on your iPad, run it once to make sure that it creates whatever folders it needs to work in your Files app. It will create an "iDOS" folder in your "On My iPad" area in Files. That's important. Before diving into the Windows setup process below, you might want to familiarize yourself with how iDOS works. In a vertical orientation, you'll see a window near the top of the screen that includes the video output of the emulated MS-DOS machine. Below that, you'll see a toolbar that lets you load disk images (if you tap the floppy drive), check the DOSBox emulation speed (a black box with green numbers), and take a screenshot or change Settings (by tapping the power button). At the bottom of the screen, you'll find an onscreen keyboard that lets you type whatever you want into the MS-DOS machine. If you flip your iPad horizontally, the MS-DOS display area will take over the screen, and you can pull up a toolbar that lets you access the keyboard, mouse, and gamepad options at any time by tapping the top center of the screen.

Slashdot reader Charlotte Web writes: The "Group of Seven" (or G7) nations are some of the world's largest economies — the U.S. and Canada, the U.K., France, Germany, and Italy, and Japan. On Sunday they pledged $2 billion to help developing countries pivot away from fossil fuels and pledged an "overwhelmingly decarbonized" electricity sector by 2030. The New York Times calls these "major steps in what leaders hope will be a global transition to wind, solar and other energy that does not produce planet-warming carbon dioxide emissions."

Politico's Ryan Heath argues "The language on a 'green revolution' is quite strong — there's plenty of detail missing, but it gives climate campaigners a lot to hit leaders with if they fail to deliver. And it's a big deal for the G-7 to agree to 'to conserve or protect at least 30 percent of our land and oceans by 2030.'"
Other reports from Politico's writers:

• "Boris Johnson admitted that the world's richest economies had not managed to secure a widely advertised 1 billion vaccine doses to send to developing countries. The final communique says the group will deliver 870 million doses over the next year."

• "The G-7 nations called for a 'timely, transparent, expert-led, and science-based WHO-convened' investigation into the origins of Covid-19, including in China. WHO's first crack at an investigation — released in March — called a lab leak 'extremely unlikely,' but China didn't grant access to key documents and Secretary of State Antony Blinken called that investigation 'highly deficient' this morning. The U.S. government remains split between two origin theories."

Apple has compromised on data security to placate Chinese authorities, the New York Times reported Monday, citing internal company documents and interviews with current and former Apple employees and security experts. An excerpt from the story: At the data center in Guiyang, which Apple hoped would be completed by next month, and another in the Inner Mongolia region, Apple has largely ceded control to the Chinese government. Chinese state employees physically manage the computers. Apple abandoned the encryption technology it used elsewhere after China would not allow it. And the digital keys that unlock information on those computers are stored in the data centers they're meant to secure.

[...] In China, Apple has ceded legal ownership of its customers' data to Guizhou-Cloud Big Data, or GCBD, a company owned by the government of Guizhou Province, whose capital is Guiyang. Apple recently required its Chinese customers to accept new iCloud terms and conditions that list GCBD as the service provider and Apple as "an additional party." Apple told customers the change was to "improve iCloud services in China mainland and comply with Chinese regulations."

The terms and conditions included a new provision that does not appear in other countries: "Apple and GCBD will have access to all data that you store on this service" and can share that data "between each other under applicable law." Under the new setup, Chinese authorities ask GCBD -- not Apple -- for Apple customers' data, Apple said. Apple believes that gives it a legal shield from American law, according to a person who helped create the arrangement. GCBD declined to answer questions about its Apple partnership. Matthew Green, who teaches cryptography at Johns Hopkins, commented on Times' story: "Apple asked a lot of people to back them against the FBI in 2015. They used every tool in the legal arsenal to prevent the US from gaining access to their phones. Do they think anyone is going to give them the benefit of the doubt now?"

Indie developer (and Humble Indie Bundle originator) Wolfire Games has filed a proposed class-action lawsuit against Steam creator Valve, saying that the company is wielding Steam's monopoly power over the PC gaming market to extract "an extraordinarily high cut from nearly every sale that passes through its storeâ"30%." Ars Technica reports: The lawsuit, filed in a Washington state federal court, centers on what it considers an illegal tying of the Steam gaming platform (which provides game library management, social networking, achievement tracking, Steam Workshop mods, etc.) and the Steam game store (which processes online payments and delivers a copy of the game). After years of growth, the vast majority of PC gamers are locked into the Steam platform thanks to "immense network effects" and the high switching costs to move to a new PC platform, the suit argues. That makes the platform "a must-have for game publishers," who need access to the players on Steam to succeed. But games that use the Steam platform also have to be sold on the Steam Store, where Valve takes its 30 percent cut of all sales. By leveraging its monopoly platform power into a "gatekeeper role" for the store, Valve "wield[s] extreme power over publishers of PC Desktop Games" that leads to a "small but significant and non-transitory increase in price" for developers compared to a truly competitive market, the suit argues.

The suit includes a laundry list of competitors that have tried to create their own platforms to take on Steam's monopoly, including CD Projekt Red, EA, Microsoft, Amazon, and Epic (not to mention "pure distributors" with platform-free stores like GameStop, Green Man Gaming, Impulse, and Direct2Drive). But the lawsuit argues that Steam's lock-in effects mean none of these stores have been able to make much of a dent in Valve's monopoly position, despite plenty of well-funded attempts. Even the Epic Games Store, which has spent hundreds of millions of dollars securing exclusives and free game giveaways, has a market share of only "a little above 2 percent," according to one cited analysis (in an interview last June, Epic's Tim Sweeney estimated a more robust 15 percent market share for EGS).

"The failure of these companies to meaningfully compete against the Steam Gaming Platform shows it is virtually impossible as an economic matter to compete against the Steam Gaming Platform," the suit argues. "The Steam Gaming Platform has well-cemented dominance in the PC Desktop Gaming Platform Market, and given its unique and strong network effects, that is unlikely to change." The only meaningful way to avoid [Valve's] anticompetitive measures, the suit argues, is "to avoid using the Steam Gaming Platform at all." But Valve's monopoly position means that "there are no economically viable alternatives to the Steam Gaming Platform" for most PC games. While the suit acknowledges a few counterexamples (Riot's League of Legends is cited by name), such titles "typically require a long history of recognition and success before they can attempt to thrive without the Steam Gaming Platform," the suit says.

SpaceX scored a regulatory victory at the Federal Communications Commission Tuesday, overcoming opposition from Amazon and other satellite companies on a key change to its plans for a satellite network that will beam internet access across the globe. From a report: SpaceX needed FCC approval to move forward with its plan to provide internet access in hard-to-reach areas. SpaceX asked the FCC for permission to lower the orbit of its future Starlink satellites.

The NBA expects all arenas to be at full capacity next season, thanks to increased COVID-19 testing and more vaccines being administered. Another key aspect toward that effort is the NBA's new multiyear leaguewide partnership with Clear, a biometric screening company known for its expedited security process at hundreds of airports worldwide. ESPN reports: The partnership makes Clear's COVID-19 health screening technology available to all 30 teams in their NBA arenas, and it's expected to help facilitate more fans returning to games, though it's up to each team how to use the technology. Conversations for a leaguewide partnership began in early September. This is Clear's first leaguewide partnership with a professional sports league, but the company has been working with teams in MLS, MLB, NHL and the NFL. Clear first rolled out this program in a leaguewide format with the NHL's bubble season across two cities in Canada last year.

As it pertains to attendance, fans can download the Clear app and upload an identifying document along with a selfie. To link their COVID-19 test results, fans log into their testing account through the app, and results will be linked to their health pass. Before entering the venue, fans can open the app, verify their identity with another selfie and then answer health survey questions. (There are also expected to be an unspecified number of Clear kiosks where fans receive a temperature check and scan their QR code.) Fans are issued a red or green notification depending on their COVID-related health information. A Clear spokesperson noted that the arenas only receive information about whether a fan has passed the requirements for access and not any private health information from the individual. They said that the Clear program is scalable, and could facilitate thousands of fans entering arenas.

"Tesla's Sentry Mode is about to bring things to a whole new level by enabling Tesla owners to remotely see what their cars can see through Autopilot cameras," claims Electrek — citing a Twitter user named green "who has been revealing new Tesla features found in software updates."

"It's not certain when the live camera update would arrive, provided it's not scrapped," writes Engadget, adding "Elon Musk has been teasing a 'hot' holiday software release, but 'green' warned that it might not make that release..."

Some background from Electrek: For a while now, Tesla has been talking about better integrating its Tesla Sentry Mode feature into its mobile app. Sentry Mode is an integrated surveillance system inside Tesla's vehicles using the Autopilot cameras around the car and it has been changing the game when it comes to vandalizing parked cars. On several occasions, Sentry Mode videos went viral, and the vandals turned themselves in after online pressure. In other cases, video evidence helped police identify and find the vandals.

The feature was built on top of "TeslaCam," a previously released integrated dashcam system with similar capability as Sentry mode, but used when someone is inside the car. TeslaCam helped several Tesla owners with insurance claims by proving that they weren't at fault in some accidents captured by the integrated dashcam system. In order to activate the TeslaCam and Sentry Mode features, owners have to plug a storage device, thumb drive, or SSD inside their Tesla and activate the features in the settings...

Tesla owners can already have an extensive look at the status of their vehicles, including the doors open or close, same for windows, charge port, and more. Now they are going to be able to see around their vehicles even if no Sentry Mode event has been activated.
That's only if the update is actually released. How do Slashdot's readers feel about the possibility of this feature?

Does the world change when Tesla owners can remotely access their cars' cameras?

Two of China's top companies have joined forces to design, develop, and build an electric car for the express purpose of ride-hailing. The Verge reports: The vehicle is an adorable green hatchback called the D1, and it was developed by Didi Chuxing, the top ride-hailing company in China that notoriously defeated Uber in 2016, and BYD, one of the leading electric vehicle manufacturers. The D1 will have a range of 418 km (260 miles) as judged by NEDC (New European Driving Cycle). They also explained some of the more interesting design touches that make this vehicle particularly well-suited for app-based ride-hailing.

There is a medium-sized screen on the dashboard as well as two more touchscreens on the back of both headrests for passengers to access navigation and other information. There is one more smaller screen behind the steering wheel that serves as an instrument cluster. The car comes with sliding doors to prevent riders from accidentally hitting passengers or cyclists. The driver's seat is extra comfy for extended use, and there's added legroom in the back seat. The paint job is described as "avocado green," which is similar to Didi's shared bikes.

The D1 will come with a Level 2 driver assistance system that includes lane-departure warning, automatic braking, and pedestrian collision warning. There will also be a driver monitoring system to ensure that drivers keep their hands on the wheel and stay focused on the road. Didi says it used data gathered from its 550 million registered passengers and 31 million drivers to design the D1.

After the U.S. unveiled charges against six members of the Sandworm unit in Russia's military intelligence agency, Wired re-visited "a secret experiment in 2007 proved that hackers could devastate power grid equipment beyond repair — with a file no bigger than a gif." It's an excerpt from the new book SANDWORM: A New Era of Cyberwar and the Hunt for the Kremlin's Most Dangerous Hackers which also remembers the late industrial control systems security pioneer Mike Assante: Among [Sandworm's] acts of cyberwar was an unprecedented attack on Ukraine's power grid in 2016, one that appeared designed to not merely cause a blackout, but to inflict physical damage on electric equipment. And when one cybersecurity researcher named Mike Assante dug into the details of that attack, he recognized a grid-hacking idea invented not by Russian hackers, but by the United State government, and tested a decade earlier...

[S]creens showed live footage from several angles of a massive diesel generator. The machine was the size of a school bus, a mint green, gargantuan mass of steel weighing 27 tons, about as much as an M3 Bradley tank. It sat a mile away from its audience in an electrical substation, producing enough electricity to power a hospital or a navy ship and emitting a steady roar. Waves of heat coming off its surface rippled the horizon in the video feed's image. Assante and his fellow Idaho National Laboratory researchers had bought the generator for $300,000 from an oil field in Alaska. They'd shipped it thousands of miles to the Idaho test site, an 890-square-mile piece of land where the national lab maintained a sizable power grid for testing purposes, complete with 61 miles of transmission lines and seven electrical substations. Now, if Assante had done his job properly, they were going to destroy it. And the assembled researchers planned to kill that very expensive and resilient piece of machinery not with any physical tool or weapon but with about 140 kilobytes of data, a file smaller than the average cat GIF shared today on Twitter....

Protective relays are designed to function as a safety mechanism to guard against dangerous physical conditions in electric systems. If lines overheat or a generator goes out of sync, it's those protective relays that detect the anomaly and open a circuit breaker, disconnecting the trouble spot, saving precious hardware, even preventing fires... But what if that protective relay could be paralyzed — or worse, corrupted so that it became the vehicle for an attacker's payload...?

Black chunks began to fly out of an access panel on the generator, which the researchers had left open to watch its internals. Inside, the black rubber grommet that linked the two halves of the generator's shaft was tearing itself apart. A few seconds later, the machine shook again as the protective relay code repeated its sabotage cycle, disconnecting the machine and reconnecting it out of sync. This time a cloud of gray smoke began to spill out of the generator, perhaps the result of the rubber debris burning inside it... The engineers had just proven without a doubt that hackers who attacked an electric utility could go beyond a temporary disruption of the victim's operations: They could damage its most critical equipment beyond repair...

Assante also remembers feeling something weightier in the moments after the Aurora experiment. It was a sense that, like Robert Oppenheimer watching the first atomic bomb test at another U.S. national lab six decades earlier, he was witnessing the birth of something historic and immensely powerful.

"I had a very real pit in my stomach," Assante says. "It was like a glimpse of the future."

Researchers at the Department of Chemistry, American University, used spinach to make a carbon-rich catalyst that can be used to improve the performance of fuel cells and metal-air batteries. IEEE Spectrum reports: The spinach was a used a precursor for high-performance catalysts required for the oxygen reduction reactions (ORRs) in fuel cells. Traditionally, fuel cells have used platinum-based catalysts, but not only is platinum very expensive and difficult to obtain, it can be vulnerable to chemical poisoning in certain conditions. Consequently, researcher have looked into biomass-derived, carbon-based, catalysts to replace platinum, but there have been bottlenecks in preparing the materials in a cost-effective and non-toxic way. "We were a little bit lucky to pick up spinach," says [Shouzhong Zou], because of its high iron and nitrogen content. "At this point [our method] does require us to add a little bit more nitrogen into the starting material, because even though [spinach] has a lot of nitrogen to begin with, during the preparation process, some of this nitrogen gets lost."

The preparation of the spinach-based catalyst sounds as first suspiciously like a smoothie recipe at first -- wash fresh leaves, pulverize into a juice, and freeze-dry. This freeze-dried juice is then ground into a powder, to which melamine is added as a nitrogen promoter. Salts like sodium chloride and potassium chloride -- "pretty much like the table salt that we use in our kitchen," says Zou -- are also added, necessary for creating pores that increase the surface area available for reactions. Nanosheets are produced from the spinach -- melamine -- salt composites by pyrolyzing them at 900 C a couple of times. "Obviously... we can optimize how we prepare this material [to make it more efficient]."

An efficient catalyst means a faster, more efficient reaction. In the case of fuel cells, this can increase the energy output of batteries. This is where the porosity of the nanosheets helps. "Even though we call them nanosheets," Zou says, "when they are stacked together, it's not like a stack of paper that is very solid." The addition of salts to create tiny holes that allows oxygen to penetrate the material rather than access only the outer surfaces. "We need to make it porous enough that... all the active sites can be used." The other factor that favorably disposed the American University team towards spinach was that it is a renewable source of biomass. "Sustainability is a very important factor in our consideration," says Zou. The big question to explore, he adds, is how can we avoid competition "with the dinner table." (Biofuel production has already raised concerns about food crops being diverted away from hungry mouths.) "And the second is, how do we keep the carbon footprint down in terms of his catalyst preparation... because currently we do use high temperatures in our preparation procedure?" If we can find different ways to do these to achieve the same type of material, that will cut back the energy consumption and reduce significantly the carbon footprint."

Video conferencing platform Zoom announced today plans to roll out end-to-end encryption (E2EE) capabilities starting next week. From a report: E2EE will allow Zoom users to generate individual encryption keys that will be used to encrypt voice or video calls between them and other conference participants. These keys will be stored locally and will not be shared with Zoom servers, meaning the software company won't be able to access or intercept any ongoing E2EE meetings. Support for E2EE calls will first be part of Zoom clients to be released next week. To use the new feature, users must update theri clients next week and enable support for E2EE calls at the account level. This green shield will contain a lock if E2EE is active. If the lock is absent, Zoom will use its default AES 256-bit GCM encryption scheme, which the company uses to secure current communications, but which the company can also intercept. Further reading: Zoom Adds Ability To Open Apps Like Dropbox And Slack, Event-Hosting Tools As Part Of Push Beyond Video Meetings.

Companies will be soon able to track the carbon emissions from an ear of corn to a pork chop, allowing them to market products to environmentally conscious eaters. Bloomberg reports: Farmer's Business Network Inc. -- which has been likened to an "Amazon" for farmers -- has launched Gro Network, which will track and score the carbon intensity of grain. That will allow buyers to label their products to consumers as "green" and potentially get a higher price for farmers who use more sustainable practices. It's the latest effort to capitalize on growing demand for food that has a smaller environmental footprint. Pollutants can be found as early as in the fertilizers and other chemicals farmers use in their fields, which permeate the food supply system as grains move along to buyers like meat producers who feed those them to their livestock. Gro's technology offers a score that producers can show their customers, vouching for the products' environmental impact, opening a layer of transparency and creating a premium product in grocery stores' meat aisles.

Gro Network, which was birthed about two years ago as a research project within FBN, is working with major grain buyers like Unilever NV and biofuels producer Poet LLC, and connecting them directly to the growers of low-carbon corn. While Gro is one of the first to offer supply chain transparency, competition is likely to increase. FBN's online retail service was also met by competing services, such one from Nutrien Ltd. Along with access to product purchases, Nutrien offers advice on products that best suit the types of seeds farmers are planting. FBN says it aims to give farmers choice by providing the most information possible on pricing sustainability. And if that means competitors attracting customers away from them, so be it.

A few quintillion possible decryption keys stand between a man and his cryptocurrency. From a report: In October, Michael Stay got a weird message on LinkedIn. A total stranger had lost access to his bitcoin private keys -- and wanted Stay's help getting his $300,000 back. It wasn't a total surprise that The Guy, as Stay calls him, had found the former Google security engineer. Nineteen years ago, Stay published a paper detailing a technique for breaking into encrypted zip files. The Guy had bought around $10,000 worth of bitcoin in January 2016, well before the boom. He had encrypted the private keys in a zip file and had forgotten the password. He was hoping Stay could help him break in. In a talk at the Defcon security conference this week, Stay details the epic attempt that ensued.

[...] "If we find the password successfully, I will thank you," The Guy wrote with a smiley face. After an initial analysis, Stay estimated that he would need to charge $100,000 to break into the file. The Guy took the deal. After all, he'd still be turning quite the profit. "It's the most fun I've had in ages. Every morning I was excited to get to work and wrestle with the problem," says Stay, who today is the chief technology officer of the blockchain software development firm Pyrofex. "The zip cipher was designed decades ago by an amateur cryptographer -- the fact that it has held up so well is remarkable." But while some zip files can be cracked easily with off-the-shelf tools, The Guy wasn't so lucky. That's partly why the work was priced so high. Newer generations of zip programs use the established and robust cryptographic standard AES, but outdated versions -- like the one used in The Guy's case -- use Zip 2.0 Legacy encryption that can often be cracked. The degree of difficulty depends on how it's implemented, though. "It's one thing to say something is broken, but actually breaking it is a whole different ball of wax," says Johns Hopkins University cryptographer Matthew Green.

An anonymous reader quotes a report from Ars Technica: Google Fiber's wireline broadband is expanding to a new city for the first time in several years as part of a public-private partnership to build an open-access network that any ISP can use to offer service. The new network will be in West Des Moines, Iowa. Google Fiber "paused" plans to expand to new cities in October 2016 amid lawsuits filed by incumbent ISPs and construction problems that eventually led to the Alphabet-owned ISP's complete exit from Louisville. But in West Des Moines, Google Fiber will rely on the city to build a network of fiber conduits. "Municipalities like West Des Moines excel at building and maintaining infrastructure. At digging and laying pipes under the roads, restoring and preserving the sidewalks and green spaces, reducing traffic congestion, and lowering construction disruption," Google Fiber said in an announcement yesterday.

The West Des Moines government's announcement said that "once the City installs conduit in the public right of way, broadband providers will pay a license fee to install their fiber in the City's conduit. Google Fiber will be the first tenant in the network." A conduit-license agreement "calls for Google Fiber to cover a portion of the construction cost to build conduit... through their monthly lease payments." "On a monthly basis, Google Fiber would pay the city $2.25 for each household that connects to the network," according to the Des Moines Register. Google Fiber would pay the city a minimum of $4.5 million over 20 years. Construction is expected to begin this fall and be completed in about two and a half years, the city said. While Google Fiber is slated to be the first tenant offering fiber service over the West Des Moines network, the city is hoping to spur broadband competition by letting other ISPs install their own fiber in the conduits. Current ISPs in West Des Moines include CenturyLink and Mediacom. "Every home and business in West Des Moines is eligible for a free connection point from their property to the municipal fiber conduit," the city said. "The City will be installing these connections and will contact every business and resident in the near future to ensure everyone has the opportunity to participate." The city also said it aims to make high-speed broadband available to "all residents, regardless of their means."

"West Des Moines plans to invest nearly $40 million" in the project, the Des Moines Register wrote, adding that city officials intend to "solicit bids for laying the underground conduit that would house the fiber-optic cables."

An anonymous reader quotes a report from the BBC: In a major U-turn, the UK is ditching the way its current coronavirus-tracing app works and shifting to a model based on technology provided by Apple and Google. The Apple-Google design has been promoted as being more privacy-focused. However, it means epidemiologists will have access to less data. The government now intends to launch an app in the autumn, however it says the product may not involve contact tracing at that point. Instead the software may be limited to enabling users to report their symptoms and order a test.

Baroness Dido Harding -- who heads up the wider Test and Trace program -- will only give the green light to actually deploying the Apple-Google technology if she judges it to be fit for purpose, which she does not believe is the case at present. It is possible this may never happen. Germany, Italy and Denmark are among other countries to have switched from a so-called "centralized" approach to a "decentralized" one. The centralized version trialled on the Isle of Wight worked well at assessing the distance between two users, but was poor at recognizing Apple's iPhones. Specifically, the software registered about 75% of nearby Android handsets but only 4% of iPhones. By contrast, the Apple-Google model logged 99% of both Android mobiles and iPhones.