×
Transportation

Volvo To Go All Electric By 2030 (reuters.com) 176

An anonymous reader quotes a report from Reuters: Volvo's entire car lineup will be fully electric by 2030, the Chinese-owned company said on Tuesday, joining a growing number of automakers planning to phase out fossil-fuel engines by the end of this decade. "I am totally convinced there will be no customers who really want to stay with a petrol engine," Volvo Chief Executive Hakan Samuelsson told reporters when asked about future demand for electric vehicles. "We are convinced that an electric car is more attractive for customers." The Swedish-based carmaker said 50% of its global sales should be fully-electric cars by 2025 and the other half hybrid models.

Owned by Hangzhou-based Zhejiang Geely Holding Group, Volvo will launch a new family of electric cars in the next few years, all of which will be sold online only. On Tuesday it unveiled the first of those models, the C40, a fully electric SUV, which will have an initial battery range of around 420 kilometers (261 miles). Volvo will include wireless upgrades and fixes for its new electric models -- an approach originally pioneered by electric carmaker Tesla Inc. This means the C40's range will be extended over time with software upgrades, Chief Technology Officer Henrik Green said. Volvo said it will "radically reduce" the complexity of its model line-up and provide customers with transparent pricing. The carmaker's global network of 2,400 traditional bricks-and-mortar dealers will remain open to service vehicles and to help customers make online orders.

Displays

Scientists Have Invented Light-Up OLED Tattoos (gizmodo.com) 38

An anonymous reader quotes a report from Gizmodo: Tattoos are usually considered a form of personal expression, but a team of researchers in Europe have created what they're calling the world's first light-emitting tattoo based on OLED screen technology that, besides presumably looking kind of cool, could also serve as a visible warning about potential health concerns. In a recently published paper in the Advanced Electronic Materials journal, "Ultrathin, UltraConformable, and FreeStanding Tattooable Organic LightEmitting Diodes," scientists from the University College London in the UK and the Italian Institute of Technology detail how their new approach to tattoos relies on the same organic light-emitting diode technology featured in devices like more recent iPhones, as well as the recent crop of mobile devices featuring folding screens. The flexibility of an OLED display is important for this application given human skin is so pliable and flexes and folds as the body moves.

The actual electronics of the light-emitting tattoos, made from an extremely thin layer of an electroluminescent polymer that glows when a charge is applied, measure in at just 2.3-micrometers thick, which, according to the researchers, is about one-third the diameter of a red blood cell. The polymer layer is then sandwiched between a pair of electrodes and sits atop an insulating layer, which is bonded to temporary tattoo paper through a printing process that isn't prohibitively expensive. The tattoos can be easily applied to surfaces using the same wet transfer process that temporary tattoos designed for kids use, and can be easily washed off when no longer needed or wanted using soap and water.

With a current applied the OLED tattoos in their current form simply glow green, but eventually could produce any color using the same RGB approach that OLED screens use. However, while the researchers acknowledge that the potential for glowing tattoos is there, taking that art in a whole new direction, they also see even more potential for them as a medical tool. When combined with other wearable technologies the light-emitting tattoos could start flashing when an athlete needs to rehydrate, or change color when applied to foods providing obvious warnings when expiration dates have passed.
The researchers note that the OLEDs polymers can quickly degrade when exposed to the air, and "there's an even bigger issue of finding a way to power them using tiny batteries or supercapacitors, as so far in the lab they've been wired to an external power source," adds Gizmodo.
Robotics

Boston Dynamics Is Selling its 70-Pound Robot Dog To Police Departments (yahoo.com) 126

The New York Times reports on what the city's police department calls Digidog, "a 70-pound robotic dog with a loping gait, cameras and lights affixed to its frame, and a two-way communication system that allows the officer maneuvering it remotely to see and hear what is happening." Police said the robot can see in the dark and assess how safe it is for officers to enter an apartment or building where there may be a threat. "The NYPD has been using robots since the 1970s to save lives in hostage situations & hazmat incidents," the department said on Twitter. "This model of robot is being tested to evaluate its capabilities against other models in use by our emergency service unit and bomb squad."

But the robot has skeptics. Rep. Alexandria Ocasio-Cortez, a Democrat, described Digidog on Twitter as a "robotic surveillance ground" drone.... Jay Stanley, a senior policy analyst with the American Civil Liberties Union, said empowering a robot to do police work could have implications for bias, mobile surveillance, hacking and privacy. There is also concern that the robot could be paired with other technology and be weaponized. "We do see a lot of police departments adopting powerful new surveillance and other technology without telling, let alone asking, the communities they serve," he said. "So openness and transparency is key...."

A mobile device that can gather intelligence about a volatile situation remotely has "tremendous potential" to limit injuries and fatalities, said Keith Taylor, a former SWAT team sergeant at the police department who teaches at John Jay College of Criminal Justice. "It's important to question police authority; however, this appears to be pretty straightforward," he said. "It is designed to help law enforcement get the information they need without having a deadly firefight, for instance."

The Times reports that Boston Dynamics has been selling the dog since June. It's also already being used by the Massachusetts State Police and the Honolulu Police Department, "while other police departments have called the company to learn more about the robot, which has a starting price of about $74,000 and may cost more with extra features," according to Michael Perry, vice president of business development at the company.

The Times points out that the robot dog is also being purchased by utility and energy companies as well as manufacturers and construction companies, which use it to get into dangerous spaces. "The robot has been used to inspect sites with hazardous material. Early in the pandemic, it was used by health care workers to communicate with potentially sick patients at hospital triage sites, Perry said."
Open Source

Exploring the Open Source That Really Goes Into a RISC-V Chip (hackaday.com) 32

"Maker Andreas Spiess talks about the Open Source that really goes into a RISC-V chip and the ESP32-C3," writes Slashdot reader nickwinlund77 — sharing a link to this article from Hackaday: It's an exciting time in the world of microprocessors, as the long-held promise of devices with open-source RISC-V cores is coming to fruition. Finally we might be about to see open-source from the silicon to the user interface, or so goes the optimistic promise. In fact the real story is considerably more complex than that, and it's a topic [Andreas Speiss] explores in a video that looks at the issue with a wide lens...
nickwinlund77 writes: The YouTube video starts out with a good general history of competition between large businesses over architectures and embracing the standards for tech which many of us have depended on throughout the years. The video then gets into the technical specifics of the ESP32-C3.
Hackaday adds: His conclusion is that while a truly open-source RISC-V chip is entirely possible (as demonstrated with a cameo Superconference badge appearance), the importance of the RISC-V ISA is in its likely emergence as a heavyweight counterbalance to ARM's dominance in the sector.
Bitcoin

Vast Energy Use of Bitcoin Criticized (bbc.com) 312

The University of Cambridge Centre for Alternative Finance has calculated that Bitcoin's total energy consumption is somewhere between 40 and 445 terawatt hours (TWh) a year, with a central estimate of about 130 terawatt hours, reports the BBC: The UK's electricity consumption is a little over 300 TWh a year, while Argentina uses around the same amount of power as the CCAF's best guess for Bitcoin. And the electricity the Bitcoin miners use overwhelmingly comes from polluting sources. The CCAF team surveys the people who manage the Bitcoin network around the world on their energy use and found that about two-thirds of it is from fossil fuels....

We can track how much effort miners are making to create the currency. They are currently reckoned to be making 160 quintillion calculations every second — that's 160,000,000,000,000,000,000, in case you were wondering. And this vast computational effort is the cryptocurrency's Achilles heel, says Alex de Vries, the founder of the Digiconomist website and an expert on Bitcoin. All the millions of trillions of calculations it takes to keep the system running aren't really doing any useful work. "They're computations that serve no other purpose," says de Vries, "they're just immediately discarded again. Right now we're using a whole lot of energy to produce those calculations, but also the majority of that is sourced from fossil energy."

The vast effort it requires also makes Bitcoin inherently difficult to scale, he argues. "If Bitcoin were to be adopted as a global reserve currency," he speculates, "the Bitcoin price will probably be in the millions, and those miners will have more money than the entire [U.S.] Federal budget to spend on electricity."

"We'd have to double our global energy production," he says with a laugh. "For Bitcoin."

Ken Rogoff, a professor of economics at Harvard and a former chief economist at the IMF, tells the BBC that Bitcoin exists almost solely as a vehicle for speculation, rather than as a stable store of value that can be easily exchanged.

When asked if the Bitcoin bubble is about to burst, he answers, "That's my guess." Then pauses and adds, "But I really couldn't tell you when."
Power

Aptera Promises The World's First Mass-Produced Solar Car This Year (stamfordadvocate.com) 163

California-based Aptera Motors "is rolling out the first mass-produced solar car this year," reports the Washington Post, after successfully crowdfunding a restart of their development effort: It's a three-wheel, ultra-aerodynamic electric vehicle covered in 34 square feet of solar cells. The car is so efficient that, on a clear day, those cells alone could provide enough energy to drive about 40 miles — more than twice the distance of the average American's commute.

The Aptera must undergo safety tests before the company can begin distribution, which it hopes to do by the end of this year. Even then, it's not clear that consumers will want to buy something that looks like a cross between the Batmobile and a beetle. The shadow of an initial attempt, which ended in bankruptcy, hangs over the founders as they gear up to launch their new product. But the Aptera's creators, Chris Anthony and Steve Fambro, think the world needs a car like theirs. Transportation is the largest source of planet-warming pollution in the United States. The Biden administration has made it a priority to reduce vehicle emissions, and several major automakers have pledged to phase out cars and light trucks with internal combustion engines.

After years of dreaming, maybe the time for driving on sunshine is finally here.

The Post also reports that 7,500 people have already put down a deposit for the two-seater car (which retails for $25,900). It can be charged just by plugging it into an electric outlet, the Post notes, while its creators claim that their car is four times more efficient than the average electric vehicle. "At least 90% of the power produced by the Aptera's solar panels goes toward making the vehicle move, the company says."

"Its extreme efficiency means the car can go 150 miles after just 15 minutes at an ordinary charging station."
Power

Sergey Brin's Airship Aims To Use World's Biggest Mobile Hydrogen Fuel Cell (techcrunch.com) 58

Sergey Brin's secretive airship company LTA Research and Exploration is planning to power a huge disaster relief airship with an equally record-breaking hydrogen fuel cell. From a report: A job listing from the company, which is based in Mountain View, California and Akron, Ohio, reveals that LTA wants to configure a 1.5-megawatt hydrogen propulsion system for an airship to deliver humanitarian aid and revolutionize transportation. While there are no specs tied to the job listing, such a system would likely be powerful enough to cross oceans. Although airships travel much slower than jet planes, they can potentially land or deliver goods almost anywhere.

Hydrogen fuel cells are an attractive solution for electric aviation because they are lighter and potentially cheaper than lithium-ion batteries. However, the largest hydrogen fuel cell to fly to date is a 0.25-megawatt system (250 kilowatts) in ZeroAvia's small passenger plane last September. LTA's first crewed prototype airship, called Pathfinder 1, will be powered by batteries when it takes to the air, possibly this year. FAA records show that the Pathfinder 1 has 12 electric motors and would be able to carry 14 people. That makes it about the same size as the only passenger airship operating today, the Zeppelin NT, which conducts sightseeing tours in Germany and Switzerland. The Pathfinder 1 also uses some Zeppelin components in its passenger gondola.

Businesses

Nvidia Made $5 Billion During a GPU Shortage and Expects To Do It Again in Q1 (theverge.com) 67

Nvidia has shared its Q4 2021 earnings, and despite the company's GPUs being in extremely low supply, it didn't seem to hurt how much money the company made. From a report: In fact, it reported a record $5 billion in revenue, which is up 61 percent year-over-year. What's more impressive is that Nvidia expects to make another $5 billion in revenue during Q1 2022. This positive outlook is surprising given that Q1 is generally slower than other quarters, even for the biggest tech companies, as it follows the rush of people buying lots of products during the holiday period. It's generally a slower period in general for product releases across tech and gaming. Also, let's not forget the GPU shortage is still happening. Nvidia reiterated that sparse supply will continue through the next quarter, but that's likely factored into its rosy revenue prediction.

Nvidia says it expects most of that $5 billion revenue estimate in Q1 2022 to come from the gaming market, despite being the segment it's currently having the toughest time serving. Since the launch of the RTX 30-series desktop graphics cards, leading with the RTX 3080, 3090, 3070, and followed by other products, Nvidia hasn't been able to meet the demand -- though it's not the only company affected. AMD has also struggled, perhaps more than Nvidia, to keep a steady stock of graphics cards heading to retailers.

Data Storage

Toshiba Unveils World's First FC-MAMR HDD: 18 TB, Helium Filled (anandtech.com) 147

Toshiba this week announced the industry's first hard drive featuring flux-control microwave-assisted magnetic recording (FC-MAMR) technology. The new MG09-series HDDs are designed primarily for nearline and enterprise applications, they offer an 18 TB capacity along with an ultra-low idle power consumption. From a report: The Toshiba MG09-series 3.5-inch 18 TB HDD are based on the company's 3rd generation nine-platter helium sealed platform that features 18 heads with a microwave-emitting component which changes magnetic coercivity of the platters before writing data. The HD disks are made by Showa Denko K.K. (SDK), a long-time partner of Toshiba. Each aluminum platter is about 0.635 mm thick, it features an areal density of around 1.5 Tb/inch2 and can store up to 2 TB of data. The MG09 family also includes a 16 TB model which presumably features a lower number of platters (based on the same performance rating).

For modern enterprise and nearline 3.5-inch HDDs, Toshiba's MG09-series drives uses a motor with a 7200-RPM spindle speed. The HDDs are also equipped with a 512 MB buffer and are rated for a 281 MB/s maximum sustained data transfer rate. Unfortunately, Toshiba has not updated the random access performance of the new products, though it is likely that their per-TB IOPS performance is lower when compared to predecessors. The manufacturer will offer its new drives both with SATA 3.3 (6 Gbps) and SAS 3.0 (12 Gbps) interfaces as well as a selection of logical data block length.

One of the noteworthy things about Toshiba's MG09-series FC-MAMR HDDs is their power consumption. In active idle mode, they typically consume 4.16/4.54 Watts (SATA/SAS models), which is considerably lower when compared with Seagate's Exos X18 as well as Western Digital's Ultrastar DC HC550. As far as power consumption efficiency at idle (large hard drives could spend plenty of time idling) is concerned, the 18 TB MG09 is an undeniable champion consuming just 0.23 Watts per TB (in case of the SATA version). Meanwhile, the new drives are rated for 8.35/8.74 Watts (SATA/SAS SKUs) during read/write operations, which is higher when compared to the DC HC550 as well as predecessors from the MG07 and the MG08-series.

Data Storage

Apple M1 Mac Users Report Excessive SSD Wear (macrumors.com) 274

Over the past week, some M1 Mac users have been reporting alarming SSD health readings, suggesting that these devices are writing extraordinary amounts of data to their drives. From a report: Across Twitter and the MacRumors forums, users are reporting that M1 Macs are experiencing extremely high drive writes over a short space of time. In what appear to be the most severe cases, M1 Macs are said to be consuming as much as 10 to 13 percent of the maximum warrantable total bytes written (TBW) value of its SSD. Flash memory on solid-state drives, such as those used in Macs, can only be written to a certain number of times before they become unstable. Software ensures that load is spread evenly across the drive's memory cells, but there is a point when the drive has been written to so many times that it can no longer reliably hold data. So while SSD wear is normal, expected behavior, drives should not be exhausting their ability to hold data as quickly as some M1 Macs seem to be. One user showed that their M1 Mac had already consumed one percent of its SSD after just two months, while another M1 Mac with a 2TB SSD had already consumed three percent. The total data units written for these machines is running into many terabytes, when they would normally be expected to be considerably lower.
Power

How Canadians Derailed a Train in 1998 and Drove It to City Hall for Power After a Brutal Ice Storm (thedrive.com) 275

James Gilboy, writing at The Drive: Over the week spanning Jan. 4-10, 1998, a trio of massive ice storms wracked the northeastern United States and parts of Canada. Knocking over transmission towers, the storms deprived up to 1.35 million people of electricity, in some cases for weeks (sound familiar?). Rather than leave town, though, one Canadian mayor stepped up to bring in the biggest mobile power generators they could get their hands on: Diesel-electric freight train locomotives. This unusual solution to a power problem unfolded in Boucherville, a Montreal suburb just northeast of famed Formula 1 racetrack Circuit Gilles Villeneuve. Having reportedly heard of locomotives being used to generate electricity during another emergency years prior, Boucherville's Mayor Francine Gadbois asked the Canadian National Railway to lend the city a couple of units. CN obliged, sending over two Montreal Locomotive Works M-420s per the 1998 issue of Trains, as recounted by members of its forum.

Both locomotives were powered by Alco 251C prime movers; 131.4-liter, single-turbo diesel V12s making some 1,950 horsepower according to the Museum of Applied Arts and Sciences. Rather than power the wheels through hydraulic or mechanical transmissions, these massive motors turned traction generators that could send juice to motors connected to the wheels. In a pinch, however, that power can be routed outside the locomotive for whatever purpose one desires, like keeping municipal buildings operating in times of crisis. And that's exactly what these locomotives did for Boucherville. According to yet another account from a train forum, officials craned M-240 number 3502 off the line down the street from city hall before moving it some 1,000 feet down the street, carving deep ruts in the asphalt. Once at its destination and hooked in, its V12 had to be run at a specific, constant rpm' to generate AC current at 60 hertz, the frequency used by most North American utilities.

Power

Texas Was 'Seconds and Minutes' Away From Catastrophic Monthslong Blackouts, Officials Say (texastribune.org) 384

Texas' power grid was "seconds and minutes" away from a catastrophic failure that could have left Texans in the dark for months, officials with the entity that operates the grid said yesterday. Texas Tribune reports: As millions of customers throughout the state begin to have power restored after days of massive blackouts, officials with the Electric Reliability Council of Texas, or ERCOT, which operates the power grid that covers most of the state, said Texas was dangerously close to a worst-case scenario: uncontrolled blackouts across the state. The quick decision that grid operators made in the early hours of Monday morning to begin what was intended to be rolling blackouts -- but lasted days for millions of Texans -- occurred because operators were seeing warning signs that massive amounts of energy supply was dropping off the grid. As natural gas fired plants, utility scale wind power and coal plants tripped offline due to the extreme cold brought by the winter storm, the amount of power supplied to the grid to be distributed across the state fell rapidly. At the same time, demand was increasing as consumers and businesses turned up the heat and stayed inside to avoid the weather.

"It needed to be addressed immediately," said Bill Magness, president of ERCOT. "It was seconds and minutes [from possible failure] given the amount of generation that was coming off the system." Grid operators had to act quickly to cut the amount of power distributed, Magness said, because if they had waited, "then what happens in that next minute might be that three more [power generation] units come offline, and then you're sunk." Magness said on Wednesday that if operators had not acted in that moment, the state could have suffered blackouts that "could have occurred for months," and left Texas in an "indeterminately long" crisis. While generators rapidly dropped off the grid as the weather worsened, operators monitored the difference between the supply of power on the grid and the demand for that power. As supply dwindled and demand grew, the margin narrowed to more and more dangerous levels, forcing grid operators to enact emergency protocols to either increase supply or decrease demand.
Further reading: Texas Leaders Ignored Warnings A Decade Ago That Their Power Supply Was In Danger
Bitcoin

NVIDIA Limits RTX 3060 Crypto Speeds As it Introduces Mining Cards (engadget.com) 161

Worried that the GeForce RTX 3060 will be sold out as cryptocurrency miners snap up every GPU in sight? NVIDIA thinks it has a simple way to help: make the new card unattractive to the crypto crowd. From a report: The company has revealed that it's cutting the hash rate (mining efficiency) of the RTX 3060 in half for Ethereum miners. The driver software can detect the Ethereum mining algorithm and throttle performance in response. The rationale is simple: NVIDIA wants to put GeForce cards "in the hands of gamers," not just those hoping to turn a profit by generating digital money. While the extremely high demand from miners has been good for NVIDIA's bottom line in the short term, it has frustrated gamers, professionals and everyday users who just want better than integrated graphics -- NVIDIA even brought back years-old GPUs just to give customers some options. Scalping and price gouging have been all too common for those GPUs that do become available.

It's not leaving miners empty-handed. The firm is launching a new CMP (Cryptocurrency Mining Processor) line of add-in cards that doesn't do graphics, but is fine-tuned for crypto mining performance. The absence of video ports allows for greater airflow and more densely-packed cards, for example. The first CMP designs are the 26 megahash per second 30HX and 36 megahash 40HX, both of which should be available this quarter from vendors like ASUS, EVGA and Gigabyte. More powerful 50X (45MH/s) and 90HX (86MH/s) boards are due in the second quarter.
The company said it won't limit the performance of GPUs that are already sold.
Power

Who's Actually To Blame For the Texas Power Disaster? (cnn.com) 663

With millions of Texans still without power in the wake of a winter storm and frigid temperatures, everyone is looking for someone to blame. From a report, shared by a reader: Many Democrats are blaming Gov. Greg Abbott (R) for failing to adequately prepare for the storm. Many conservatives are blaming the environmental movement -- insisting that frozen wind turbines show the limits of alternative energy sources. (This is a gross exaggeration.) But the primary fall guy is the Electric Reliability Council of Texas (ERCOT), an independent organization that operates Texas' power grid. "This was a total failure by ERCOT," said Abbott on Tuesday. "These are the experts. These are engineers in the power industry. These aren't bureaucrats or whatever the case may be. These are specialists, and government has to rely upon on these specialists to be able to deliver in these types of situations." The story, as you might guess, is actually slightly more complicated than that. It's rooted in Texans' views of their state as a quasi-independent country -- and a desire to have as little federal interference in their lives as possible. Yes, there are politics at the root of this. "Texas' secessionist inclinations have at least one modern outlet: the electric grid," wrote the Texas Tribune back in 2011.

To understand what is happening right now in Texas -- and who's to blame -- you have to go back to 1935, when President Franklin Delano Roosevelt signed the Federal Power Act, which governed electricity sharing and sales between the states. Basically, it allowed the federal government to regulate states who brought power in from outside their state lines. Texas, never a fan of federal intrusion, set up its own power grid system -- split between northern and southern Texas -- to avoid any federal involvement. That led eventually to the formation of ERCOT in 1970 and this strange fact: There are three power grids in the United States -- the eastern power grid, the western power grid and, well, Texas. Yes, you read that right. Texas has its own power grid. Because it is Texas. And while being independent from the yoke of federal regulation has always been a point of pride for Texas, the limits of that strategy are being realized now. See, because Texas -- or at least 90% of the state -- is controlled by ERCOT, they can't simply borrow power from either the eastern or western power grids. That's never been a problem before because Texas has always been able to generate more power than its citizens need. But the reality is that Texas is an electricity island, which isn't a problem until the lights go out, and you don't have enough power in the state to turn them back on. Now, there's no question that ERCOT bears some blame here, too.

Google

Google, Microsoft, Qualcomm Protest Nvidia's Arm Acquisition (bloomberg.com) 47

Some of the world's largest technology companies are complaining to U.S. antitrust regulators about Nvidia's acquisition of Arm because the deal will harm competition in an area of the industry that is vital to their businesses. Alphabet's Google, Microsoft and Qualcomm are among companies worried about the $40 billion deal and are asking antitrust officials to intervene, Bloomberg News reported Friday, following up on CNBC's report from earlier today that talked only about Qualcomm's efforts. At least one of the companies wants the deal killed, Bloomberg added. From the report: The acquisition would give Nvidia control over a critical supplier that licenses essential chip technology to the likes of Apple, Intel, Samsung Electronics, Amazon.com and China's Huawei Technologies. U.K.-based Arm is known as the Switzerland of the industry because it licenses chip designs and related software code to all comers, rather than competing against semiconductor companies. The concern is that if Nvidia owns Arm, it could limit rivals' access to the technology or raise the cost of access.
Businesses

Qualcomm Objects To Nvidia's $40 Billion Arm Acquisition (cnbc.com) 12

U.S. chipmaker Qualcomm has told regulators around the world that it is against Nvidia's $40 billion acquisition of British chip designer Arm, CNBC reported Friday, citing sources familiar with the matter. From the report: The company has told the Federal Trade Commission, the European Commission, the U.K.'s Competition and Markets Authority and China's State Administration for Market Regulation that it has concerns about Nvidia buying Arm, which is currently owned by Japanese tech giant SoftBank. The FTC's investigation has moved to a "second phase" and the U.S. regulator has asked SoftBank, Nvidia and Arm to provide it with more information, according to two sources who are familiar with the deal but wished to remain anonymous due to the private nature of the discussions. Complying with the information request is likely to take many months as several large documents will need to be produced, the sources said. During the second phase, the FTC will also engage with other companies who may have relevant information that could help it to make a decision, they added.
Bitcoin

Bitcoin Consumes 'More Electricity Than Argentina' (bbc.com) 355

Thelasko shares a report from the BBC: Bitcoin uses more electricity annually than the whole of Argentina, analysis by Cambridge University suggests. 'Mining' for the cryptocurrency is power-hungry, involving heavy computer calculations to verify transactions. Cambridge researchers say it consumes around 121.36 terawatt-hours (TWh) a year -- and is unlikely to fall unless the value of the currency slumps. Critics say electric-car firm Tesla's decision to invest heavily in Bitcoin undermines its environmental image.

The online tool has ranked Bitcoin's electricity consumption above Argentina (121 TWh), the Netherlands (108.8 TWh) and the United Arab Emirates (113.20 TWh) - and it is gradually creeping up on Norway (122.20 TWh). The energy it uses could power all kettles used in the UK for 27 years, it said. However, it also suggests the amount of electricity consumed every year by always-on but inactive home devices in the US alone could power the entire Bitcoin network for a year.
"Bitcoin is literally anti-efficient," David Gerard, author of Attack of the 50 Foot Blockchain, explained. "So more efficient mining hardware won't help -- it'll just be competing against other efficient mining hardware. This means that Bitcoin's energy use, and hence its CO2 production, only spirals outwards. It's very bad that all this energy is being literally wasted in a lottery."

In regard to Tesla's decision to buy bitcoin, Mr Gerard added: "Elon Musk has thrown away a lot of Tesla's good work promoting energy transition. This is very bad... I don't know how he can walk this back effectively. Tesla got $1.5 billion in environmental subsidies in 2020, funded by the taxpayer. It turned around and spent $1.5 billion on Bitcoin, which is mostly mined with electricity from coal. Their subsidy needs to be examined."
Businesses

Biden Team Pledges Aggressive Steps To Address Chip Shortage (yahoo.com) 175

The Biden administration is working to address the global semiconductor shortage that has caused production halts in U.S. industries including autos, White House Press Secretary Jen Psaki said. From a report: The administration is identifying choke points in supply chains and discussing an immediate path forward with businesses and trading partners, Psaki told reporters at the White House on Thursday. In the longer term, policy makers are looking for a comprehensive strategy to avoid bottlenecks and other issues the semiconductor industry has been facing for years. President Joe Biden is expected to sign an executive order directing a government-wide supply chain review for critical goods in the coming weeks, with the chip shortage a central concern behind the probe. The order will compel a 100-day review led by the National Economic Council and National Security Council focused on semiconductor manufacturing and advanced packaging, critical minerals, medical supplies and high-capacity batteries, such as those used in electric vehicles, two people familiar with the draft said. Additional supply-chain assessments are expected within a year, focused on critical products -- materials, technology and infrastructure -- and other materials tied to defense, public health, telecommunications, energy and transportation.
Chrome

Chrome Will Soon Lose Support For Some Ancient CPUs (techspot.com) 141

If you're one of the few people still using a PC with an x86 processor more than 15 years old, here's another reason to upgrade: the devices will not work with future Chrome releases, starting with version 89 of the world's most popular browser. TechSpot reports: The Chromium development team announced that CPUs older than the Intel Core 2 Duo and AMD Athlon 64 would not work with Chrome 89 and future versions as they do not meet the new minimum instruction set requirement of SSE3 (Supplemental Streaming SIMD Extensions 3) support. So, if you are still sporting an Intel Atom or Celeron M CPU, you'll soon be counting Chrome as one of the many programs that are incompatible with your potato-like rig. The devices will no longer attempt to install the browser, while running it will result in the software crashing. It's noted that the change only affects Windows as Chrome OS, Android and, Mac already require SSE3 support.
Android

The Nintendo Switch Can Now Run Android 10, Unofficially 20

Thanks to the hard work of the SwitchRoot team, it's now possible to enjoy an Android 10-based LineageOS 17.1 port on your Nintendo Switch console. XDA Developers reports: The Android 10 release is based on the LineageOS 17.1 build for the NVIDIA SHIELD TV and brings many improvements over the previous release, including a much-needed deep sleep mode so the OS doesn't murder your console's battery life. It's also generally faster and more responsive than the previous Android 8.1 Oreo version, according to the SwitchRoot team.

The ROM comes in two flavors: a Tablet build that offers a standard Android UI with support for all apps and an Android TV build that supports both docked and undocked use cases but has more limited app support. The former is recommended if you primarily use your Nintendo Switch while undocked, while the latter will offer a much-better docked experience. As for bugs and broken things, the developer says games built for the SHIELD (Half-Life 2, Tomb Raider, etc.) aren't supported, and you might notice some stuttering with Bluetooth audio. Some apps also may not support the Joy-Con D-Pad.

In order to install this build, you'll need an RCM-exploitable Nintendo Switch, a USB-C cable, a high-speed microSD card (formatted to FAT32), and a PC. If you already have the Android 8.1 Oreo build installed on your SD card, just make sure to back up your data before installing the Android 10 build, as flashing this new ROM will wipe all data. After installing the ROM itself, be sure to flash the Google Apps package, Alarm Disable ZIP, and Xbox Joycon Layout ZIP if you use an Xbox controller.
You can download LineageOS 17.1 for Nintendo Switch here.

Slashdot Top Deals