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Bitcoin

Kosovo Bans Cryptocurrency Mining To Save Electricity (reuters.com) 52

Kosovo's government on Tuesday introduced a ban on cryptocurrency mining in an attempt to curb electricity consumption as the country faces the worst energy crisis in a decade due to production outages. Reuters reports: "All law enforcement agencies will stop the production of this activity in cooperation with other relevant institutions that will identify the locations where there is cryptocurrency production," Economy and Energy Minister Artane Rizvanolli said in a statement. Faced with coal-fired power plant outages and high import prices authorities were forced last month to introduce power cuts.

European gas prices soared more than 30% on Tuesday after low supplies from Russia reignited concerns about an energy crunch as colder weather approaches. In December, Kosovo declared a state of emergency for 60 days which will allow the government to allocate more money to energy imports, introduce more power cuts and harsher measures. The country of 1.8 million people is now importing more than 40% of its consumed energy with high demand during the winter when people use electricity mainly for heating. Around 90% percent of energy production in Kosovo is from lignite, a soft coal that produces toxic pollution when burnt.

Transportation

Chevy Silverado EV Revealed: GM's Best-Selling Truck Goes Electric (theverge.com) 116

An anonymous reader quotes a report from The Verge: Chevy Silverado, one of the top-selling pickup trucks in the US, is going electric. General Motors CEO Mary Barra unveiled Chevy's answer to the Ford F-150 Lightning during a virtual presentation at this year's Consumer Electronics Show. GM hopes that the plug-in pickup's familiar nameplate will help it lure Silverado owners and other truck fans to the world of zero tailpipe emissions. The Silverado EV is the second electric truck for GM, succeeding the GMC Hummer EV, which went into production last year. But when it comes out in late 2023, the electric Silverado will be one of the flagship vehicles in the company's much larger $35 billion push into electric vehicles, as well as the first electric truck for the automaker's Chevy brand.

At launch, the Silverado EV will be available in two configurations: an RST First Edition and a fleet-oriented Work Truck (WT) model. Both models will get more than 400 miles of range on a full charge (though that number still needs to be certified by the Environmental Protection Agency). The base model work truck will start at $39,900, while the fully loaded RST First Edition, named because it will be first off the assembly line in spring 2023, will sell for the suggested price of $105,000. Chevy says that after production ramps up, various versions of the truck will be available for $50,000-$80,000. The automaker is already taking reservations.

Like most electric vehicles, the electric Silverado will be incredibly quick, able to sprint from 0 to 60 mph in less than 4.5 seconds. That's quicker than the RWD single-motor Cybertruck and about on par with the Ford F-150 Lightning and the tri-motor Cybertruck. (Tesla says the quad-motor truck will be able to hit 60 mph in 2.9 seconds.) The RST version sounds like it could easily knock the wind out of you, with 485kW of total power (664 horsepower) and 780 pound-feet of torque while in the Silverado's Wide Open Watts Mode. The RST First Edition of the truck will also feature a host of additional features, including: Four-wheel steering; Automatic Adaptive Air Suspension, enabling the vehicle to be raised or lowered 2 inches; Multi-Flex Midgate that expands the truck's cargo capability while maintaining seating for a rear row passenger Available Multi-Flex Tailgate with power release; 17-inch LCD infotainment screen paired with a neighboring 11-inch-diagonal reconfigurable driver instrument display and a multi-color driver head-up display with a field of view over 14 inches; and Trailering-capable Super Cruise, GM's hands-free driver assistance technology, allowing drivers to travel hands-free on more than 200,000 miles of compatible roads across the US and Canada.
GM doesn't have its own charging network, so Silverado EV owners "will need to rely on a patchwork of third-party EV charging companies for most of their needs," notes The Verge. For onboard power, the Silverado bests the F-150 Lightning "putting out an incredible 10.2kW for all sorts of charging needs, including powering an entire home or charging another electric vehicle."

The vehicle will be built in Detroit at GM's Factory Zero EV plant.

Further reading:
Car and Driver: As Chevy Silverado EV Charges after Ford F-150 Lightning, How They Compare
The Drive: Here's What Comes in the $40K 2024 Chevy Silverado EV Work Truck
Engadget: Watch GM's Silverado EV Reveal In 10 Minutes
Power

New Solar Shingles Can Be Nailed In Place (arstechnica.com) 86

FangVT writes: Ars Techinca reports on GAF Energy's new solar shingles which are designed to save on installation costs. They are not only designed to look similar to existing asphalt shingles but to be installed in much the same way, including being nailed in place. The system has moved the wiring to the top, so as to simplify inspections and repairs. "Because each one of our panels is 45 Watts and only 10 volts, we have access to a whole host of electronic components that don't have to be able to withstand 300 Watts, 50 volts," the company says. "That allows us to be more efficient in the electricity generated from those panels." And in what they say is a first, UL has certified the shingles both as solar panels and as roofing materials. The company also says they come with a 25 year warrant and will be offering a more comprehensive warranty that will also include guaranteed power output.

They wouldn't provide a hard number on the price, but "a homeowner won't pay any more for a GAF solar roof than they would if they were to get a new roof and have someone put solar on it," said GAF Energy CEO Martin DeBono. "That's our benchmark. We're half the cost of a Tesla solar roof in any given market right now."
Displays

Apple's Upcoming AR/VR Headset To Feature Three Displays (macrumors.com) 21

Apple's mixed reality headset that's set to launch in 2022 will be equipped with three displays, according to a research report shared today by display analyst Ross Young. MacRumors reports: The display configuration will include two micro OLED displays along with one AMOLED panel, with Sony set to supply the micro OLED displays that Apple will use. The micro OLED displays will be the main displays for the headset, but it's not yet known just what the AMOLED display will be used for. Modern VR headsets don't use AMOLED technology because the pixel density is too low, so it's possible that Apple is going to add it for low-resolution peripheral vision.

Sony recently showed off a 4K display with 4000 pixels per inch designed for use with VR headsets, and the report suggests that it's possible Sony developed this display specifically for Apple. If Apple is indeed using this Sony technology, an assumed array of 4000 x 4000 pixels indicates the display for the headset will measure in at 1.4 inches diagonally. This kind of advanced display configuration will come at a "high price," and Young suggests that the headset will cost several thousand dollars, which is in line with previous reports that have indicated a price of around $3,000.

Hardware

Fire At ASML Could Worsen Global Computer Chip Shortage (theregister.com) 21

ASML Holding has reported a fire at its factory in Berlin, Germany. No one was hurt and the fire was put out on Sunday night, but the incident could exacerbate the current global computer chip shortage. Here's what ASML said about the incident: The fire was extinguished during the night and fortunately no persons were injured during this incident. At this point it is too early to make any statement on the damage or whether the incident will have any impact on the output plan for this year. It will take a few days to conduct a thorough investigation and make a full assessment. As soon as we have such assessment, we will provide an update. The Register reports: ASML is the world's largest supplier of photolithography systems, the machines used to manufacture integrated circuits. Its units -- which cost tens of millions of dollars -- use lasers to etch components into blank silicon wafers, to within an accuracy of nanometers. Berliner Glas, where the fire was extinguished, was acquired by ASML in 2020, and says that over "1,200 employees" work at the firm, now known as ASML Berlin, developing and producing "several key components for ASML lithography systems, including wafer tables and clamps, reticle chucks and mirror blocks."

These are key components for extreme ultraviolet (EUV) and deep ultraviolet (DUV) systems. EUV, in particular, which helps ASML's semiconductor-making clients print chips in much finer detail and at a lower cost, is seen as one of the drivers behind the firm's predictions of a $1 trillion semiconductor industry by 2030. The Dutch firm's customers include TSMC and Intel.

Berlin's fire department said last night that an automatic cleaning system had caught fire across an area of 200m^2 on the second floor of a three-storey "industrial" building in Waldkraiburger Strasse in Berlin's Britz district in the Neukolln area. Resources deployed at the site included a drone that could access the roof. The Berlin company's stated production area is 31,780m^2. A spokesperson confirmed to The Register that a part of the Berlin factory was closed -- but said other parts of the factory were still operating. The firm's stock price dipped 2 per cent on the news.

Power

Exploding Batteries: Chevy's 2021 Recall Shows the Challenges of Building Electric Cars (yahoo.com) 137

Electric cars make up less than 5% of new U.S. vehicle sales today — but automakers are betting on increasing demand. Chevy even plans to stop producing gas-powered cars altogether over the next 15 years, according to the Washington Post.

But they also ponder the implications of this year's recall of the Chevy Bolt: The crisis involving the Chevrolet Bolt was a painful reminder for the auto industry that despite treating the electric vehicle era as essentially inevitable — a technical fait accompli — significant obstacles to manufacturing the cars, and especially their batteries, continue to threaten that future. "It's a terrible thing that has happened," Tim Grewe, GM's general director for electrification strategy and cell engineering, said in an interview in September...

The recall of the Bolt covered all of the roughly 141,000 units GM had ever built. The company identified the issue as dual defects that led battery materials to make contact with one another and the components to combust spontaneously. It's a danger that comes directly from the core challenge of creating electric-vehicle batteries: the competition to pack more and more energy into them... Even as automakers seek to phase out gasoline engines en masse, high-voltage car batteries remain in their early stages of mass production. Many manufacturers are experimenting with new technologies and battery chemistries. While they do so, they are discovering defects — some of which can prove catastrophic.... Electric-car-battery explosions can release massive amounts of energy — and the fires can burn for hours, stretching longer and registering hotter than fires in cars with internal-combustion engines...

LG, which has made batteries for the Bolt's entire run, is reimbursing GM for nearly $2 billion of costs associated with the recall.... GM has been hit hardest by fire concerns — but Audi and Hyundai also have recalled EVs over fire risks.

Robotics

Boston Dynamics' Stretch Can Move 800 Heavy Boxes Per Hour (ieee.org) 91

Stretch is a new robot from Boston Dynamics that can move approximately 800 heavy boxes per hour. As IEEE Spectrum reports, it's part of "a new generation of robots with the intelligence and flexibility to handle the kind of variation that people take in stride." From the report: Stretch's design is somewhat of a departure from the humanoid and quadrupedal robots that Boston Dynamics is best known for, such as Atlas and Spot. With its single massive arm, a gripper packed with sensors and an array of suction cups, and an omnidirectional mobile base, Stretch can transfer boxes that weigh as much as 50 pounds (23 kilograms) from the back of a truck to a conveyor belt at a rate of 800 boxes per hour. An experienced human worker can move boxes at a similar rate, but not all day long, whereas Stretch can go for 16 hours before recharging. And this kind of work is punishing on the human body, especially when heavy boxes have to be moved from near a trailer's ceiling or floor.

"Truck unloading is one of the hardest jobs in a warehouse, and that's one of the reasons we're starting there with Stretch," says Kevin Blankespoor, senior vice president of warehouse robotics at Boston Dynamics. Blankespoor explains that Stretch isn't meant to replace people entirely; the idea is that multiple Stretch robots could make a human worker an order of magnitude more efficient. "Typically, you'll have two people unloading each truck. Where we want to get with Stretch is to have one person unloading four or five trucks at the same time, using Stretches as tools." All Stretch needs is to be shown the back of a trailer packed with boxes, and it'll autonomously go to work, placing each box on a conveyor belt one by one until the trailer is empty. People are still there to make sure that everything goes smoothly, and they can step in if Stretch runs into something that it can't handle, but their full-time job becomes robot supervision instead of lifting heavy boxes all day.

Stretch is optimized for moving boxes, a task that's required throughout a warehouse. Boston Dynamics hopes that over the longer term the robot will be flexible enough to put its box-moving expertise to use wherever it's needed. In addition to unloading trucks, Stretch has the potential to unload boxes from pallets, put boxes on shelves, build orders out of multiple boxes from different places in a warehouse, and ultimately load boxes onto trucks, a much more difficult problem than unloading due to the planning and precision required. [...] Boston Dynamics spent much of 2021 turning Stretch from a prototype, built largely from pieces designed for Atlas and Spot, into a production-ready system that will begin shipping to a select group of customers in 2022, with broader sales expected in 2023. For Blankespoor, that milestone will represent just the beginning. He feels that such robots are poised to have an enormous impact on the logistics industry.

Data Storage

University Loses 77TB of Research Data Due To Backup Error (bleepingcomputer.com) 74

An anonymous reader quotes a report from BleepingComputer: The Kyoto University in Japan has lost about 77TB of research data due to an error in the backup system of its Hewlett-Packard supercomputer. The incident occurred between December 14 and 16, 2021, and resulted in 34 million files from 14 research groups being wiped from the system and the backup file. After investigating to determine the impact of the loss, the university concluded that the work of four of the affected groups could no longer be restored. All affected users have been individually notified of the incident via email, but no details were published on the type of work that was lost.

At the moment, the backup process has been stopped. To prevent data loss from happening again, the university has scraped the backup system and plans to apply improvements and re-introduce it in January 2022. The plan is to also keep incremental backups -- which cover files that have been changed since the last backup happened -- in addition to full backup mirrors. While the details of the type of data that was lost weren't revealed to the public, supercomputer research costs several hundreds of USD per hour, so this incident must have caused distress to the affected groups. The Kyoto University is considered one of Japan's most important research institutions and enjoys the second-largest scientific research investments from national grants. Its research excellence and importance is particularly distinctive in the area of chemistry, where it ranks fourth in the world, while it also contributes to biology, pharmacology, immunology, material science, and physics.

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Tokyo Police Lose 2 Floppy Disks Containing Personal Info on 38 Public Housing Applicants (mainichi.jp) 101

The Metropolitan Police Department (MPD) has lost two floppy disks containing personal information on 38 people, the department announced on Dec. 27. From a report: The MPD said the floppy disks contained personal data on 38 people who had applied for public housing in Tokyo's Meguro Ward. The ward office had provided the personal information to the MPD to check if the applicants were affiliated with organized crime groups. Police said no leaks or misuse of the information have been confirmed at this point. According to the MPD's third organized crime control division, the names, dates of birth, and sex of 38 men in their 20s to 80s who had applied for Meguro Ward-run housing were recorded on the floppy disks. None of them were apparently affiliated with gangs. The police division and Meguro Ward signed an agreement in 2012 to check whether public housing applicants were affiliated with crime syndicates. Police received the floppy disks from the ward in December 2019 and February 2021 to conduct background checks, and kept them in the division's locked storage. The loss of the disks emerged after a Meguro Ward employee made a new inquiry to the police division on Dec. 7 and police went back to the disks to return them. Police say the disks may have been discarded accidentally.
China

China Lays Out Path To Become Robotics Powerhouse by 2025 (nikkei.com) 22

China will work to become a leading global player in robotics by 2025 under a five-year plan announced Tuesday as it ramps up efforts to build a high-tech manufacturing sector resilient to American sanctions. From a report: Coming amid what is expected to be a drawn-out rivalry with the U.S., the plan seeks to help Chinese technology companies compete on the world stage. It was compiled by the Ministry of Industry and Information Technology and other agencies. The plan targets revenue growth of more than 20% per year for the Chinese robotics industry. Despite reaching the 100 billion yuan ($15.7 billion) mark in 2020, the industry still lags in foundational technologies and manufacturing advanced robots. The government wants to improve the industry's ability to innovate. China will support restructuring efforts and mergers, particularly among large corporations, to create more competitive players. It will also provide financial assistance and strengthen cooperation between industry, academia and government to develop more advanced materials and core components. The plan promotes the diversification of supply chains, which has emerged as a top priority for economic security amid the Sino-American rivalry.
Power

Data Centers Are Pushing Ireland's Electric Grid To the Brink (gizmodo.com) 66

An anonymous reader quotes a report from Gizmodo: Behind every TikTok, Zoom call, and cat meme is a data center that stores, processes, or reroutes that data around the world. The more we do online, the bigger these data centers and their energy footprint get. At full capacity, servers within a modern "hyperscale" (aka "massive") data center can use as much power as 80,000 households. Although the data center industry is global, places with the right combination of stable climate and friendly regulations attract outsized attention from data center developers. Ireland is one of these places. The island nation hosts 70 data centers and is now the fastest-growing data center market in Europe. Unfortunately, supplying the equivalent of several extra cities worth of electricity to servers that aid your doomscrolling is starting to take a toll on Ireland's power grid.

Data centers already use around 900 megawatts of electricity in Ireland. According to Paul Deane, an energy researcher working with the MaREI Environmental Research Institute in Ireland, this adds up to at least 11% of Ireland's total electricity supply at present, a situation he described "as a serious energy systems problem." As Deane outlined, meeting this demand is making Ireland's current energy crisis worse and its target of halving greenhouse emissions by 2030 harder to reach. And things are only getting more challenging. A recent report from Eirgrid, Ireland's state-owned grid operator, shows that data centers will consume almost 30% (PDF) of Ireland's annual electricity supply by 2029.

Although, as Deane pointed out, data centers are essential to modern life, a small country with little grid power to spare hosting so many of them puts the sustainability of Ireland's entire power supply at risk. Deane summed up Ireland's issue with data centers as being a mismatch in size. "Data centers are large power users, and our power system is small, so plugging more of them into a small grid will start to have an outsized impact," he said. In stark comparison, Germany, the EU's biggest data center market overall, will use less than 5% of its grid capacity to power data centers in the same period. As well as stoking fears that the industry's growth will create blackouts and power shortages for Irish consumers this winter, data centers may also derail Ireland's drive to reach net zero emissions by 2050.

Power

Sweden's Northvolt Builds First Lithium-Ion Battery Cell In Europe (teslarati.com) 21

Swedish battery manufacturer Northvolt announced that on December 28th, it successfully produced the first lithium-ion battery cell to be designed, developed, and built completely in Europe by a homegrown company. Teslarati reports: "Last night, the commissioning of the Northvolt Ett gigafactory in northern Sweden led to the assembly of the first battery cell," Northvolt wrote. The company's factory, located in Vasteras, Sweden, is the first factory in Europe to have a cell that has been "fully designed, developed and assembled at a gigafactory by a homegrown European battery company," the company added. The production of the cell is a massive milestone for Northvolt, which has been working to get its gigafactory up and running since 2017. The company said the cell is of a prismatic cell format, which consist of large sheets of anodes, cathodes, and separators sandwiched, rolled up, and pressed to fit into a metallic or hard-plastic housing in cubic form, according to AllAboutCircuits.

Northvolt Labs in Vasteras has been in production since early 2020, the company said. Northvolt plans to expand the production capacity of the facility toward 60 GWh per year, which will fulfill over $30 billion worth of contracts the battery maker has already locked up with various automotive manufacturers, including BMW, Volkswagen, Volvo, Polestar, Fluence, and Scania. Northvolt Ett will commercially deliver various cell types in 2022. While the company is based in Europe and has various partnerships with European automotive and energy storage companies, it has no plans to only service entities that are only located on the same continent.

Businesses

Apple Ditched Intel, and It Paid Off (cnbc.com) 101

An anonymous reader quotes a report from CNBC, written by Todd Haselton: Apple's decision to ditch Intel paid off this year. The pivot allowed Apple to completely rethink the Mac, which had started to grow stale with an aging design and iterative annual upgrades. Following the divorce from Intel, Apple has launched far more exciting computers which, paired with an ongoing pandemic that has forced people to work and learn from home, have sent Apple's Mac business soaring. It wasn't always a given. When Apple announced its move away from Intel in 2020, it was fair to question just how well Apple could power laptops and desktop computers. Apple has used in-house chips for iPhones and iPads but had been selling Intel-powered computers for 15 years. It wasn't clear how well its macOS desktop software would work with apps designed to run on Intel chips, or whether its processors would offer any consumer benefits and keep up with intensive tasks that people turned to MacBooks to run. Those fears were quickly quelled.

The first M1 Apple chip was launched in 2020 in a MacBook Air laptop. It was more powerful than Intel's chip while offering longer battery life and enabling a fanless design, which helped keep Apple's new MacBook Air even quieter. It proved to be an early success. In April 2021, CEO Tim Cook said during the company's fiscal second-quarter earnings call that the M1 chip helped fuel the 70.1% growth in Apple's Mac revenue, which hit $9.1 billion during that quarter. The growth continued in fiscal Q3, when Mac revenue was up 16% year over year. That quarter, it launched the all-new iMac, which offered a redesigned super-thin metal body that looks like a screen propped up on a stand. It's slimmer than the Intel models that came before it, while offering other benefits, like a much better webcam, great speakers and a much sharper display than the models it replaced. And Apple made the launch more exciting by offering an array of colors for the iMac, which it hadn't done since it shipped the 1999 iMac. There was a slowdown in fiscal Q4, when Mac revenue grew just 1.6%, as Apple, like all manufacturers, saw a slowdown from the burst of sales driven by the start of the pandemic and dealt with supply chain woes. But fiscal Q4 sales didn't include revenue from its most exciting new computer of the year.

Apple's fiscal Q1 earnings in January will give an indication of how well all its new computers are selling. But it's clear the move from Intel has allowed Apple to move full speed ahead with its own chip development, much like it does for iPhones and iPads, the latter of which has yet to be matched by any other tablet on the market. It's no longer beholden to delays that plagued Intel, which started to lag behind AMD with its new 7nm chips. And Apple has full control over its "stack," which means it can design new computer hardware and software together, instead of letting the power of another company's chips dictate what its computers can and can't do.

Transportation

Hyundai Shuts Down Its Engine Development Team Amid Focus On Electric Cars (electrek.co) 215

Hyundai announced that it is shutting down its internal combustion engine development team as the automaker focuses on electric cars. Electrek reports: For 40 years the Korean automaker has been developing internal combustion engines to use in its vehicle lineup, but no more. The Korea Economic Daily reports that Hyundai's new R&D chief Park Chung-kook confirmed in an email to employees that they are shutting down new engine development: "Now, it is inevitable to convert into electrification. Our own engine development is a great achievement, but we must change the system to create future innovation based on the great asset from the past."

Hyundai reportedly had 12,000 people working on engines, but they are now being transferred to EV powertrain development: "Researchers at the engine design unit have moved to the electrification design center, leaving only some to modify existing engines. The powertrain system development center is transforming into an electrification test center, while the powertrain performance development center is becoming an electrification performance development center." Park added on the change: "The immediate task is to develop innovative vehicles that can dominate the future market. This reorganization will be an important starting point for change ahead in the new year."

Power

13 Battery Gigafactories Are Coming To the US By 2025 (electrek.co) 47

schwit1 shares a report from Electrek: There are 13 new battery cell gigafactories coming online in the US by 2025, according to the Department of Energy. These factories are ushering in a new era of battery production in the US. [...] Now the Department of Energy has issued a report listing all the battery factory projects in the US: "In addition to electric vehicle battery plants that are already in operation in the United States, 13 additional plants have been announced and are expected to be operational within the next 5 years. Of the 13 plants that are planned, eight are joint ventures between automakers and battery manufacturers. Many of these new plants will be located in the Southeast or Midwest." The list, published by the Department of Energy last week (available in full via Electrek), includes factories from Ford, SK Innovation, General Motors and LG Energy Solution, as well as one from Toyota and Volkswagen. "It looks like they missed a few too," adds Electrek.

"For example, Tesla is currently deploying battery cell production capacity at its Gigafactory Texas in Austin. It could become one of the biggest battery cell factories in the world, with a planned capacity of over 100 GWh."
Google

Google is Just Letting the Pixelbook Rot (inputmag.com) 42

An anonymous reader shares a report: Google has a tendency to show up, innovate, and then abandon its products/services rather quickly. There's an entire site, Killed by Google, that's dedicated to documenting all of Google's dead projects. Even Stadia, Google's once-promising cloud gaming service, could be heading to the graveyard, after years of failing to measure up to Microsoft's xCloud and Nvidia's GeForce Now. But software is one thing. Hardware is another, and Google has let its premiere Chromebook, the Pixelbook, rot without a hardware refresh since 2019's Pixelbook Go.

Not counting the original Cr-48 reference design Chromebook, Google has released a total of four Chrome OS-powered laptops. There was the original 2013 Chromebook Pixel and 2015 Pixel 2 (not to be confused with the phones that are named Pixel). Then the 2-in-1 Pixelbook in 2017, and in 2019, the Pixelbook Go. The pattern for a refresh seemed to be every two years. This year's Pixel 6 event came and went with no word of a new Pixelbook. And according to a recent comment made at Qualcomm's conference by Chrys Tsolaki, Google's retail partner manager for Chromebooks, there won't be a Pixelbook in 2022, either.

The Military

Why the Air Force Wants To Put Lidar On Robot Dogs (popsci.com) 18

An anonymous reader quotes a report from Popular Science: Imagine being able to see the components of a potentially dangerous situation in live 3D and in fine detail without even having to survey the area,' says Brian Goddin, from the Air Force Installation and Mission Support Center public affairs, in a video produced by the military. [...] Putting lidar on drones and on ground robots gives the military a way to map the interior of a building with a machine. With that lidar data transmitted to the computers in a command center, or even just the tablet of an operator sitting outside the building, a human can see what the robot sees, and direct the robot accordingly. (In the civilian world, lidar sensors are commonly used on self-driving cars as one tool for the vehicles to perceive the world around them.) Goddin's presentation, released online December 9, 2021, shows lidar mounted on Spot, the Boston Dynamics dog-shaped robot. Ghost Robotics Q-UGV machines, also dog-shaped and sensor-rich, have been used to patrol the perimeter of Tyndall AFB, making Spot the second breed (or brand) of robot dog to serve the needs of the base.

While all of this mapping at Tyndall is happening in the wake of Hurricane Michael, creating a virtual 3D model of the buildings as they stand can guide future repair. Such a virtual model is a useful tool for regular maintenance and repair, and it provides a record of a prior state should disaster strike again. Such techniques could also allow better investigations of failure after the fact. By comparing lidar scans of downed or wrecked craft to those before launch, and to surviving aircraft that made it back from a fight, the Air Force could understand how to better make more durable craft. Scanning a wrecked plane with lidar also lets rescue workers and recovery teams know if and how they should act to save pilots and passengers, suggested Javier Rodriguez, a technician stationed at Tyndall.

Printer

Virginia Family Gets Keys To Habitat For Humanity's First 3D-Printed Home in the US (cnn.com) 33

One Virginia family received the keys to their new 3D-printed home in time for Christmas. The home is Habitat for Humanity's first 3D-printed home in the nation, according to a Habitat news release. CNN reports: Janet V. Green, CEO of Habitat for Humanity Peninsula and Greater Williamsburg, told CNN it partnered with Alquist, a 3D printing company, earlier this year to begin the process. Alquist's crew printed the house. Janet V. Green, CEO of Habitat for Humanity Peninsula and Greater Williamsburg, told CNN it partnered with Alquist, a 3D printing company, earlier this year to begin the process. Alquist's crew printed the house. The technology allowed the home to be built in just 12 hours, which saves about four weeks of construction time for a typical home. The concrete used in the house's 3D construction has many long-term benefits, such as the ability to retain temperature and withstand natural disasters, like tornadoes and hurricanes.

April Stringfield purchased the home through the Habitat Homebuyer Program. She will move in with her 13-year-old son just in time for the holidays. "My son and I are so thankful," Stringfield said in a live feed streamed on Habitat's Facebook page. "I always wanted to be a homeowner. It's like a dream come true." Stringfield's home also includes a personal 3D printer that will allow her to reprint anything she may need, "everything from electrical outlet to trim to cabinet knobs," Green told CNN.

Printer

Habitat for Humanity Just Delivered Its First 3D Printed Home in the US (cnn.com) 93

The nonprofit Habitat for Humanity uses volunteer labor to build homes with affordable mortgages for families in need (who also invest hundreds of hours of their own labor) — or to renovate or repair/improve existing homes.

But this week saw them delivering something new: a 3D-printed home, built with giant 3D printers from a company called Alquist).

CNN reports: The 1,200-square-foot home has three bedrooms, two full baths and was built from concrete. The technology allowed the home to be built in just 12 hours, which saves about four weeks of construction time for a typical home....

The concrete used in the house's 3D construction has many long-term benefits, such as the ability to retain temperature [reducing heating and cooling costs] and withstand natural disasters, like tornadoes and hurricanes. [It also reduced building costs by an estimated 15% per square foot.] Stringfield's home also includes a personal 3D printer that will allow her to reprint anything she may need, "everything from electrical outlet to trim to cabinet knobs," Janet V. Green, CEO of Habitat for Humanity Peninsula and Greater Williamsburg, told CNN.

While this is the first 3D home for Habitat for Humanity in the U.S., it certainly won't be the last. Green told CNN it hopes to continue partnering and developing the technology used with the printing. "We would love to build more with this technology, especially because it's got that long-term savings for the homeowners," Green said.

The house will also have "smart building" applications that track data on the indoor environment through a proprietary Virginia Tech system that uses a Raspberry Pi, according to a statement from Habitat for Humanity.

And the house will be outfitted with solar panels, "for even more cost savings after the family moves in."
Programming

'A Quadrillion Mainframes On Your Lap' (ieee.org) 101

"Your laptop is way more powerful than you might realize," writes long-time Slashdot reader fahrbot-bot.

"People often rhapsodize about how much more computer power we have now compared with what was available in the 1960s during the Apollo era. Those comparisons usually grossly underestimate the difference."

Rodney Brooks, emeritus professor of robotics at MIT (and former director of their AI Lab and CSAIL) explains in IEEE Spectrum: By 1961, a few universities around the world had bought IBM 7090 mainframes. The 7090 was the first line of all-transistor computers, and it cost US $20 million in today's money, or about 6,000 times as much as a top-of-the-line laptop today. Its early buyers typically deployed the computers as a shared resource for an entire campus. Very few users were fortunate enough to get as much as an hour of computer time per week.

The 7090 had a clock cycle of 2.18 microseconds, so the operating frequency was just under 500 kilohertz. But in those days, instructions were not pipelined, so most took more than one cycle to execute. Some integer arithmetic took up to 14 cycles, and a floating-point operation could hog up to 15. So the 7090 is generally estimated to have executed about 100,000 instructions per second. Most modern computer cores can operate at a sustained rate of 3 billion instructions per second, with much faster peak speeds. That is 30,000 times as fast, so a modern chip with four or eight cores is easily 100,000 times as fast.

Unlike the lucky person in 1961 who got an hour of computer time, you can run your laptop all the time, racking up more than 1,900 years of 7090 computer time every week....

But, really, this comparison is unfair to today's computers. Your laptop probably has 16 gigabytes of main memory. The 7090 maxed out at 144 kilobytes. To run the same program would require an awful lot of shuffling of data into and out of the 7090 — and it would have to be done using magnetic tapes . The best tape drives in those days had maximum data-transfer rates of 60 KB per second. Although 12 tape units could be attached to a single 7090 computer, that rate needed to be shared among them. But such sharing would require that a group of human operators swap tapes on the drives; to read (or write) 16 GB of data this way would take three days. So data transfer, too, was slower by a factor of about 100,000 compared with today's rate.

So now the 7090 looks to have run at about a quadrillionth (10 ** -15) the speed of your 2021 laptop. A week of computing time on a modern laptop would take longer than the age of the universe on the 7090.

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