Valve's Steam Link app, which brings streaming games to your mobile device, is now available as a free download for iOS and Apple TV. The iOS launch comes nearly one year after Apple rejected the app due to "business conflicts." GameSpot reports: The Steam Link app promises to bring "desktop gaming to your iPhone or iPad." Users can pair a Steam controller or any MFI (Made-for-iPhone/iPad) controller to play games over a network connection provided they are on the same local network. The Steam Link app is effectively a replacement for the physical Steam Link device that Steam discontinued in 2018. Steam Link is already available on Android. As the Verge notes in their report, the biggest difference between the iOS and Android versions is that the iOS Steam Link app "doesn't allow users to purchase games from the Steam store, unlike on Android."

You can download Steam Link from iTunes here.

Most of the solar cells Tesla is producing at its Gigafactory in upstate New York "are being sold overseas instead of being used in the company's trademark 'Solar Roof' as originally intended," reports Reuters. "The exporting underscores the depth of Tesla's troubles in the U.S. solar business, which the electric car maker entered in 2016 with its controversial $2.6 billion purchase of SolarCity." From the report: Tesla has only sporadically purchased solar cells produced by its partner in the factory, Panasonic Corp, according to a Buffalo solar factory employee speaking on condition of anonymity. The rest are going largely to foreign buyers, according to a Panasonic letter to U.S. Customs officials reviewed by Reuters. When the two firms announced the partnership in 2016, the companies said they would collaborate on cell and module production and Tesla would make a long-term commitment to buy the cells from Panasonic. Cells are components that convert the sun's light into electricity; they are combined to make solar panels.

The situation raises new questions about the viability of cash-strapped Tesla's solar business. Musk once called the deal a "no brainer" - but some investors panned it as a bailout of an affiliated firm at the expense of Tesla shareholders. Before the merger, Musk had served as chairman of SolarCity's board of directors, and his cousin, Lyndon Rive, was the company's CEO. [...] Panasonic also produces traditional solar panels at the Buffalo plant for Tesla, but has been selling many of them to other buyers since at least last year due to low demand from the California car company, Reuters reported in August 2018. Tesla last month reported a 36 percent slide in its overall solar sales in the first quarter, adding to previous big drops since the SolarCity acquisition.

New solar panels created from a semiconducting material called cadmium telluride (CdTe) "have been found to produce electricity at lower costs than silicon panels and there has been a dramatic gain in efficiency brought about by adding an element called selenium to the cadmium telluride," reports Phys.Org. "Until now, it was not well understood why selenium increases efficiency but thanks to Tom Fiducia, a Ph.D. Research Student in the Center for Renewable Energy Systems Technology (CREST), and an international team of researchers, the puzzle has been solved." From the report: Their paper, titled "Understanding the role of selenium in defect passivation for highly efficient selenium-alloyed cadmium telluride solar cells," has revealed that selenium works by overcoming the effect of harmful, atomic-scale defects in CdTe panels. This explains the increase of efficiency as electrons (subatomic particles that carry electricity), which are generated when sunlight hits the solar panel, are less likely to be trapped and lost at the defects. This increases the amount of power extracted.

Tom, who is the lead author of the paper, says the team discovered this "unexpected" behavior by measuring how much light is emitted from selenium-containing panels. As selenium is not evenly distributed across the panels, they compared the 'luminescence' emitted from areas where there was little-to-no selenium present and areas where the selenium was very concentrated. Tom explained: "While it seems counter intuitive, good solar cell material that is defect-free is very efficient at emitting light, and so luminesces strongly. We mapped the luminescence emitted from a selenium-containing solar cell at a resolution of around 1/10,000th of a millimeter and compared it to a similarly high-resolution map of the selenium concentration taken on the exact same area of the cell. It is strikingly obvious when you see the data that selenium-rich regions luminesce much more brightly than the pure cadmium telluride, and the effect is remarkably strong." The new-found knowledge could be used to increase the efficiency of cadmium telluride solar panels even further, says Tom. "For instance, this could be by simply increasing the amount of selenium in the devices or altering its distributions within the cell."

An anonymous reader quotes a report from Ars Technica: Cloud Peak Energy, the U.S.' fourth-largest coal mining company, filed for Chapter 11 bankruptcy late last week as the company missed an extension deadline to make a $1.8 million loan payment. In a statement, Cloud Peak said it will continue to operate its three massive coal mines in Wyoming and Montana while it goes through the restructuring process. Colin Marshall, the president and CEO of the company, said that he believed a sale of the company's assets "will provide the best opportunity to maximize value for Cloud Peak Energy."

Cloud Peak was one of the few major coal producers who escaped the significant coal industry downturn between 2015 and 2016. That bought it a reputation for prudence and business acumen. But thinning margins have strained the mining company as customers for thermal coal continue to dry up. Coal-fired electricity is expected to fall this summer, even though summer months are usually boom times for coal plants as air conditioning bolsters electricity demand. That's because cheap natural gas and a boost in renewable capacity have displaced dirtier, more expensive coal. According to the Casper Star Tribune, Cloud Peak shipped 50 million tons of coal in 2018. The paper noted that after the bankruptcy filing, "speculation almost immediately began that Cloud Peak would sell its mines."

Lenovo is launching a new AR-and-VR system targeted at businesses. It's called ThinkReality, and from the looks and description of the device and platform, it looks like a competitor for Microsoft's HoloLens. Engadget reports: There are two parts to the new ThinkReality system -- the AR headset and a software platform. The ThinkReality A6 is a comfortable 380-gram headset with two fisheye cameras on the front, as well as depth sensors and a 13-megapixel RGB sensor. There's also microphones onboard for voice control, and the headset can also detect where you're gazing to optimize resolution or navigation. You'll also be able to interact with your virtual environments using an included 3DoF controller. Untethered, the A6 can last up to four hours with its 6,800mAh battery, and you can still use the device while it's plugged in and charging.

The headset connects to an SSD-sized compute box that contains a Snapdragon 845 CPU running an Android-based platform. There's also an Intel Movidius chips powering waveguide optics here, and each eye on the A6 offers a 40-degree diagonal field of view and 1080p resolution. By comparison, the HoloLens 2 uses a Snapdragon 850 CPU and packs two 2K MEMS displays. Microsoft also squeezes all the computing components into the headset rather than in a separate box like Lenovo does. While I'm not a fan of having to carry around an additional accessory to power a headset, this setup does make the ThinkReality A6 lighter, so it's a compromise I'm willing to make. You can wear the box on a belt clip or an armband, which should make it easy to move around when wearing this setup at work. Lenovo claims this is "one of the lightest fully featured AR headsets in its class," and during a brief trial with a non-working model, I certainly found the A6 lightweight.

An anonymous reader shares a report: It all started over lunch at a Dubai restaurant on March 19, 2017. It was the first time 45-year-old Li, met Costa, the 49-year-old Italian who's often known by peers in the industry as "Captain Magic." During their meal, Costa described a robot hedge fund his company London-based Tyndaris Investments would soon offer to manage money entirely using AI, or artificial intelligence. Developed by Austria-based AI company 42.cx, the supercomputer named K1 would comb through online sources like real-time news and social media to gauge investor sentiment and make predictions on US stock futures. It would then send instructions to a broker to execute trades, adjusting its strategy over time based on what it had learned.

The idea of a fully automated money manager inspired Li instantly. He met Costa for dinner three days later, saying in an email beforehand that the AI fund "is exactly my kind of thing." Over the following months, Costa shared simulations with Li showing K1 making double-digit returns, although the two now dispute the thoroughness of the back-testing. Li eventually let K1 manage $2.5bn -- $250m of his own cash and the rest leverage from Citigroup. The plan was to double that over time. But Li's affection for K1 waned almost as soon as the computer started trading in late 2017. By February 2018, it was regularly losing money, including over $20m in a single day -- Feb. 14 -- due to a stop-loss order Li's lawyers argue wouldn't have been triggered if K1 was as sophisticated as Costa led him to believe.

schwit1 quotes a report from Bloomberg: A plan by California's biggest utility to cut power on high-wind days during the onrushing wildfire season could plunge millions of residents into darkness. And most people aren't ready. The plan by PG&E comes after the bankrupt utility said a transmission line that snapped in windy weather probably started last year's Camp Fire, the deadliest in state history. While the plan may end one problem, it creates another as Californians seek ways to deal with what some fear could be days and days of blackouts. Some residents are turning to other power sources, a boon for home battery systems marketed by Sunrun, Tesla and Vivint Solar. But the numbers of those systems in use are relatively small when compared with PG&E's 5.4 million customers. Meanwhile, Governor Gavin Newsom said he's budgeting $75 million to help communities deal with the threat. PG&E said the city of Calistoga could have its service cut as many as 15 times this fire season, depending on how extreme the weather is. The utility also plans to set up dozens of so-called "resiliency centers," where backup generators can be brought in to run essential services.

"The utility aims to give at least two days warning about a shutoff and has embarked on a public awareness campaign including mailing letters to customers and is working to identify vulnerable residents," reports Bloomberg. "It also will be working to get power restored in a day after a shutoff, though its customers could be out for as many as five days."

At its Accelerate 2019 event in Orlando today, Lenovo previewed "the world's first foldable PC." While we don't know the name, price tag, or ship date, we do know that the foldable PC will be part of Lenovo's flagship ThinkPad X1 line and that it will arrive in 2020. VentureBeat reports: Lenovo backs up its "the world's first foldable PC" claim by saying it looked at laptops sold by major PC manufacturers this month. None shipped more than "1 million units worldwide annually" with foldable screens. Apparently Lenovo is hoping to ship at least 1 million units of its new foldable PC in the first year.

We don't know much about the device yet, and that's on purpose. Tom Butler, Lenovo's ThinkPad marketing director, did say that the company has been working on the device for "several years" with partners Intel, Microsoft and LG. He confirmed that those three have been part of the project from the very beginning. Intel chips and Windows will be powering the foldable ThinkPad. LG is responsible for manufacturing the screen, the highlight of the device. It's a 13.3-inch single OLED 2K display with a 4:3 aspect ratio. It's also a touchscreen and will support pen input. When folded in half, the width of the device is reduced by 50%, as you might expect.

Apple's VP of Apple Pay, Jennifer Bailey, announced new NFC tags that will let iPhone users make purchases simply by tapping their phones against the stickers, without the need to download a special app first. "The company is partnering with Bird scooters, Bonobos clothing store, and PayByPhone parking meters for the initial rollout," reports 9to5Mac. From the report: Apple also announced that inside the Wallet app, users will soon be able to sign up for loyalty cards in one tap, presumably presented to users as recommendations when they make eligible purchases. Right now, physical Apple Pay transactions require bulky terminals like those you find at retail store checkouts. With the new support, an iPhone will know how to read a specially-encoded NFC tag (that can be as inert as a sticker) and automatically show the Apple Pay purchase interface when a user holds their device near it. No third-party apps or other set up required.

The obvious example is a user can ad-hoc top up their miles on a hired electric scooter simply by tapping their phone or watch to a NFC sticker on the bike. For Bonobos, it will enable simpler self-service shopping with the ability to place NFC tags directly onto clothing rails. The new Apple Pay features will be rolling out later this year, presumably with more partners onboard now that the news is public. This is yet another step towards Apple's goal of replacing the wallet.

Amazon is rolling out machines to automate a job held by thousands of its workers: boxing up customer orders. From a report: The company started adding technology to a handful of warehouses in recent years, which scans goods coming down a conveyor belt and envelopes them seconds later in boxes custom-built for each item, two people who worked on the project told Reuters. Amazon has considered installing two machines at dozens more warehouses, removing at least 24 roles at each one, these people said. These facilities typically employ more than 2,000 people. That would amount to more than 1,300 cuts across 55 U.S. fulfillment centers for standard-sized inventory. Amazon would expect to recover the costs in under two years, at $1 million per machine plus operational expenses, they said. The plan, previously unreported, shows how Amazon is pushing to reduce labor and boost profits as automation of the most common warehouse task -- picking up an item -- is still beyond its reach.

Ars Technica's Kyle Orland reports that Brazilian ROM hacker Vitor Vilela has released a ROM patch for the hit arcade game Gradius III, creating a new, slowdown-free version of the game for play on SNES emulators and standard hardware. "In magazine screenshots, the game's huge, colorful sprites were a sight to behold, comparable to the 1989 arcade original," writes Orland. "In action, though, any scene with more than a handful of enemies would slow to a nearly unplayable crawl on the underpowered SNES hardware." From the report: The key to Vilela's efforts is the SA-1 chip, an enhancement co-processor that was found in some late-era SNES cartridges like Super Mario RPG and Kirby Super Star. Besides sporting a faster clock speed than the standard SNES CPU (up to 10.74 Mhz versus 3.58 Mhz for the CPU), SA-1 also opens up faster mathematical functions, improved graphics manipulation, and parallel processing capabilities for SNES programmers.

The result, as is apparent in the comparison videos embedded here, is a version of Gradius III that Vilela says runs two to three times faster than the original. It also keeps its silky smooth frame rate no matter how many detailed, screen-filling sprites clutter the scene. That's even true in the game's notorious, bubble-filled Stage 2, which is transformed from a jittery slide show to an amazing showcase of the SNES' enhanced power. As if that wasn't enough, the patch even slashes the game's loading times, cutting a full 3.25 seconds from the notably slow startup animation. Vilela notes that the lack of slowdown "makes it incredibly super difficult" and even suggests that "some arcade segments of the game do not look RTA (real-time action) viable with SA-1. But we shouldn't underestimate the human capabilities."

MikeChino writes: Yves Behar, ICON, and New Story just unveiled plans to build the world's first 3D-printed community this summer in Latin America. The project will provide over 50 homes for impoverished families who typically live on less than $200 per month. ICON has developed a portable printer that will print the walls of each home in just 24 hours with nearly zero waste. "Each site-specific house will feature an outdoor kitchen and an expanded outdoor area for raising chickens and crops," reports Dwell. "The open-plan interior living areas are optimized for natural ventilation and flexibility. The 3D printer will allow for built-in elements ranging from countertops in the kitchen and bathroom to seating and shelving."

ICON has made a video about the plans with mockups of what the homes will look like.

According to research by DRAMeXchange, a division of TrendForce, the NAND flash industry this year is clearly exhibiting signs of oversupply, and SSD suppliers have gotten themselves into a price war, causing SSD prices for PC OEMs to take a dive. From a post: Average contract prices for 512GB and 1TB SSDs have a chance to plunge below $0.1 per GB by the end of this year, hitting an all-time low. This change will cause 512GB SSDs to replace their 128GB counterparts and become market mainstream, second only to 256GB SSDs. We may also look forward to PCIe SSDs achieving 50% market penetration, since PCIe SSDs and SATA SSDS are nearly identical in price.

TrendForce points out that SSD adoption among notebooks had already come above the 50% threshold in 2018. Contract prices for mainstream 128/256/512GB SSDs have fallen a long way by over 50% since peaking in 2017, and those for 512GB and 1TB SSDs have a chance to fall below US$0.1 per GB by year-end. This will stimulate demand from those seeking to replace their 500GB and 1TB HDDs. SSD adoption rate is expected to land between 60 and 65% in 2019. According to TrendForce's latest investigations, 2Q19 marks the 6th consecutive quarter of average contract price decline for mainstream PC-Client OEM SSDs, with the average contract price for SATA SSDs falling QoQ by 15-26%, and PCIe SSDs by 16-37%.

An anonymous reader quotes a report from The Guardian: Britain has gone a week without using coal to generate electricity for the first time since Queen Victoria was on the throne, in a landmark moment in the transition away from the heavily polluting fuel. The last coal generator came off the system at 1.24pm on 1 May, meaning the UK reached a week without coal at 1.24pm on Wednesday, according to the National Grid Electricity System Operator, which runs the network in England, Scotland and Wales. The latest achievement – the first coal-free week since 1882, when a plant opened at Holborn in London – comes only two years after Britain's first coal-free day since the Industrial Revolution. Burning coal to generate electricity is thought to be incompatible with avoiding catastrophic climate change, and the UK government has committed to phasing out coal-fired power by 2025.

The remaining nuclear reactor still operating at Three Mile Island in South-central Pennsylvania will shut down by September 30th, Exelon announced Wednesday. The decision to close the reactor comes 40 years after the nation's worse commercial nuclear accident. NPR reports: The company says the plant has been losing money for years. The nuclear industry generally has struggled to compete with less expensive electricity generated from natural gas and renewable energy. Exelon first announced it would close two years ago unless lawmakers stepped in to keep it open. It then campaigned to save the plant by seeking a subsidy from Pennsylvania's legislature. The company argued that, in light of climate change and efforts to address it, the plant deserves compensation for the carbon-free electricity it produces.

That argument has worked in other states, including Connecticut, Illinois, New Jersey and New York. But in Pennsylvania, the state's powerful natural gas industry opposed it, along with industrial users and consumer advocates, calling the proposal a "bailout." When it became clear the subsidy legislation wouldn't pass within the next month Exelon decided to retire the plant, which was licensed to operate for 15 more years. Exelon says it will offer positions elsewhere in the company to employees who are willing to relocate. But the plant also employed thousands of contract workers during refueling and maintenance outages. On March 28, 1979, Three Mile Island Generating Station Unit 2 "suffered a partial meltdown after a pump stopped sending water to the stream generators that removed heat from the reactor core," reports NPR. "The accident was the start of a backlash against the nuclear industry that halted its growth for decades."

Intel provided an update regarding its upcoming fabrication technologies at its 2019 Investor Meeting today. From a report: The company is on track to produce server-class products using its 10 nm manufacturing technology already in the first half of 2020. What is relatively surprising is that the company intends to start production of chips using its 7 nm process already in 2021. Intel's 7 nm production technology had been in development independently from the 10 nm process and by a different crew, so this one is closer than one might think. The node technology is set to use extreme ultraviolet lithography (EUVL) with laser wavelength of 13.5 nm for select layers, so it will not heavily rely on multipatterning, the source of problems with Intel's 10 nm process. In fact, the use of EUV will simplify development of products, make it easier to produce them, and will likely shorten production cycle times too.

AmiMoJo writes: Backblaze's hard drive reliability stats for Q1 2019 are out, and show that Seagate has been improving for some time. It still can't match the long time leader, Hitachi, and had a nasty blip with 4TB drives. The Annualized Failure Rate (AFR) for all the hard drives tested in Q1 was 1.56%. That's as high as the quarterly rate has been since Q4 2017 and its part of an overall upward trend we've seen in the quarterly failure rates over the last few quarters..

An anonymous reader quotes a report from Phys.Org: An international team of scientists has demonstrated for the first time that it is possible to generate a measurable amount of electricity in a diode directly from the coldness of the universe. The infrared semiconductor device faces the sky and uses the temperature difference between Earth and space to produce the electricity. In contrast to leveraging incoming energy as a normal solar cell would, the negative illumination effect allows electrical energy to be harvested as heat leaves a surface. Today's technology, though, does not capture energy over these negative temperature differences as efficiently. By pointing their device toward space, whose temperature approaches mere degrees from absolute zero, the group was able to find a great enough temperature difference to generate power through an early design.

The group found that their negative illumination diode generated about 64 nanowatts per square meter, a tiny amount of electricity, but an important proof of concept, that the authors can improve on by enhancing the quantum optoelectronic properties of the materials they use. Calculations made after the diode created electricity showed that, when atmospheric effects are taken into consideration, the current device can theoretically generate almost 4 watts per square meter, roughly one million times what the group's device generated and enough to help power machinery that is required to run at night. By comparison, today's solar panels generate 100 to 200 watts per square meter. The study has been published in the journal Applied Physics Letters.

Samsung said on Tuesday it cannot confirm the shipping date for its foldable device Galaxy Fold yet and apologized to its pre-order customers in the United States for the delay. From a report: The world's top smartphone maker delayed global sales of the splashy $1,980 foldable phone after reviewers discovered problems with its display, dealing a setback to Samsung and its efforts to showcase its innovation. "If we do not hear from you and we have not shipped by May 31st, your order will be canceled automatically," the South Korean tech giant's U.S. subsidiary told Galaxy Fold pre-order customers in an email late on Monday, which was confirmed by a Samsung spokeswoman. As per U.S. regulations, Samsung was required to notify customers that the pre-orders would be canceled in the event the product had not been shipped by May. 31, it said in a separate statement to Reuters.

"A new report by Which?, an advocacy group in the United Kingdom, found that Apple and HTC both overstate battery life on smartphones, sometimes 'significantly'..." reports Hot Hardware.

"In stark contrast, Nokia, Samsung, and Sony all underestimate or are conservative about battery life with the phones that were tested, based on the organization's methods." "Which? tested nine iPhone models and found that all of them fell short of Apple's battery time claims. In fact, Apple stated that its batteries lasted between 18 percent and 51 percent longer than the Which? results," Which? said. The biggest discrepancy belonged to the iPhone XR, one of Apple's newest generation handsets... Apple claims that the iPhone XR has a talk time of up to 25 hours. However, Which? found that the battery lasted for 16 hours and 32 minutes during its own talk time tests. Apple's rated metric is 51 percent higher...

It seems clear that Which? is using a different method of testing than the manufacturers, but the disparity does not always work against the phone makers. For example, Which? found that Sony's devices lasted 21 percent longer than the manufacturer's own talk time battery life claims.
HTC cited "differences in setup and testing environments" that could explain "some variation," according to the article, and Apple also said they stand behind their battery life claims.

Apple says that the iPhone "is engineered to intelligently manage power usage to maximize battery life. Our testing methodology reflects that intelligence."