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Hardware

NVIDIA Launches GeForce RTX 3060 Ti, Sets a New Gaming Performance Bar At $399 (hothardware.com) 70

MojoKid writes: NVIDIA expanded its line-up of Ampere-based graphics cards today with a new lower cost GeForce RTX 3060 Ti. As its name suggests, the new $399 NVIDIA GPU supplants the previous-gen GeForce RTX 2060 / RTX 2060 Super, and slots in just behind the recently-released GeForce RTX 3070. The GeForce RTX 3060 Ti features 128 CUDA cores per SM, for a total of 4,864, 4 Third-Gen Tensor cores per SM (152 total), and 38 Second-Gen RT cores. The GPU has a typical boost clock of 1,665MHz and it is linked to 8GB of standard GDDR6 memory (not the GDDR6X of the RTX 3080/3090) via a 256-bit memory interface that offers up to 448GB/s of peak bandwidth. In terms of overall performance, the RTX 3060 Ti lands in the neighborhood of the GeForce RTX 2080 Super, and well ahead of cards like AMD's Radeon RX 5700 XT. The GeForce RTX 3060 Ti's 8GB frame buffer may give some users pause, but for 1080p and 1440p gaming, it shouldn't be a problem for the overwhelming majority of titles. It's also par for the course in this $399 price band. Cards are reported to be shipping in retail tomorrow.
Open Source

Raspberry Pi Foundation Releases Case Fan To Prevent Overheating (techcrunch.com) 118

The Raspberry Pi Foundation has released a tiny $5 fan combined with a small heatsink for the Raspberry Pi 4. TechCrunch reports: It works with the official case, below the top cover. That accessory should prevent the Raspberry Pi from overheating. According to the foundation, the tiny fan should be enough to prevent throttling. "It draws air in over the USB and Ethernet connectors, passes it over a small finned heatsink attached to the processor, and exhausts it through the SD card slot," the Raspberry Pi Foundation says. It's a cheap stopgap solution, but I hope the Foundation will prioritize heat dissipation for the next iteration of the Raspberry Pi.
Power

Tasmania Is Now 100% Powered By Renewable Electricity (reneweconomy.com.au) 133

Tasmania consists of the 26th-largest island in the world and its surrounding 334 islands — an island state of Australia with a population around 540,000 people, according to Wikipedia.

Friday the Tasmanian government "declared that it has become the first Australian state, and one of just a handful of jurisdictions worldwide, to be powered entirely by renewable electricity," according to one news report: Tasmania joins the Australian Capital Territory as the only two Australian jurisdictions sourcing all of their electricity from renewable energy sources, and places Tasmania alongside countries like Scotland, Iceland and Costa Rica which have also made the transition to 100 per cent renewable electricity. The milestone was welcomed by environmental groups, saying that it was another example of what is being achieved by state and territory governments that are stepping in to show leadership on energy policy in a vacuum left by ongoing conflict both between and within political parties at a federal level...

Tasmanian energy minister Guy Barnett added that the Tasmanian government would continue to support an expansion of the state's renewable energy capabilities, as the state looks to grow its role as a supplier of zero emissions energy to both mainland Australia and of green hydrogen into international export markets. "But there is more to do, which is why we have set a target to double our renewable generation to a global-leading target of 200 per cent of our current needs by 2040 — which we recently passed into law following the passing of legislation through both Houses of Parliament," Barnett added.

OS X

Is Apple Silicon Ready? (thenextweb.com) 132

Programmer Abdullah Diaa has put together a website to help determine if your favorite apps work on Apple Silicon yet. An anonymous reader shares a report from The Next Web: ... [P]lease say hello to Is Apple silicon ready? The idea behind the site is simple: it shows you if specific apps will work on laptops and desktops with Apple's in-house chip. Easy to get your head around, right? It shows you a list of software and, if they have native M1 support, they're given a green tick.

Here's an image that shows you what's going on far clearer than lots of words could. As you can see, the site also shows you if the app you're after has Rosetta 2 support. Effectively, Rosetta 2 is an emulator, allowing a large number of apps designed for Intel machines to run on Apple Silicon. If this is supported, you will still be able to use that software on an M1-toting machine.
Further reading: Linus Torvalds Would Like To Use An M1 Mac For Linux, But...
Desktops (Apple)

Linus Torvalds Would Like To Use An M1 Mac For Linux, But... (zdnet.com) 246

Yes, Torvalds said he'd love to have one of the new M1-powered Apple laptops, but it won't run Linux and, in an exclusive interview he explains why getting Linux to run well on it isn't worth the trouble. Steven J. Vaughan-Nichols writes via ZDNet: Recently, on the Real World Technologies forum, Linux's creator Linus Torvalds was asked what he thought of the new M1-powered Apple laptops. Torvalds replied, "I'd absolutely love to have one if it just ran Linux." You may think, "what's the problem? Doesn't Linux run on practically every processor on the planet from 80386s to IBM s390x to the ARM family of which Apple's M1 chip is a child?" Well, yes, yes it does. But it takes more than a processor to run a computer.

Torvalds would like to run Linux on these next-generation Macs. As he said, "I've been waiting for an ARM laptop that can run Linux for a long time. The new Air would be almost perfect, except for the OS. And I don't have the time to tinker with it, or the inclination to fight companies that don't want to help." Aye, there's the rub. In an exclusive interview, Torvalds expanded on why he can't see porting Linux to the M1-based Macs. "The main problem with the M1 for me is the GPU and other devices around it, because that's likely what would hold me off using it because it wouldn't have any Linux support unless Apple opens up."

Still, while Torvalds knows Apple opening up their chipsets "seems unlikely, but hey, you can always hope." Even if that "wasn't an issue," Torvalds continued, "My personal hope would be more cores. Even in a laptop, I don't care about 20-hour battery life (and I wouldn't get it building kernels anyway). I'd rather plug it in a bit more often, and have 8 big cores." As for the Mac's limited RAM -- no more than 16GBs on current models -- he can live with that. "16GBs is actually ok by me because I don't tend to do things that require a lot more RAM. All I do is read email, do git and kernel compiles. And yes, I have 64GB in my desktop, but that's because I have 32 cores and 64 threads, and I do hugely parallel builds. Honestly, even then 32GB would be sufficient for my loads." That said, other developers and power users may want more from the new Macs, Torvalds thinks. "The people who really want tons of memory are the ones doing multiple VMs or huge RAW file photography and video."

Power

EU Says It Could Be Self-Sufficient In Electric Vehicle Batteries By 2025 (reuters.com) 87

The European Union could produce enough batteries by 2025 to power its fast-growing fleet of electric vehicles without relying on imported cells, European Commission Vice President Maros Sefcovic said on Tuesday. Reuters reports: As part of its plan to become climate neutral by 2050, the EU wants to boost local production of the building blocks for green industries -- including hydrogen fuel to make low-carbon steel and batteries to power clean vehicles. "I am confident that by 2025, the EU will be able to produce enough battery cells to meet the needs of the European automotive industry, and even to build our export capacity," Sefcovic told the online European Conference on Batteries. Today, China hosts roughly 80% of the world's lithium-ion cell production, but Europe's capacity is set to expand fast.

Europe has 15 large-scale battery cell factories under construction, including Swedish company Northvolt's plants in Sweden and Germany, Chinese battery maker CATL's German facility, and South Korean firm SK Innovation's second plant in Hungary. Sefcovic said by 2025 planned European facilities would produce enough cells to power at least 6 million electric vehicles.

EU

Elon Musk Talks New Tesla Model In Europe (electrek.co) 102

Elon Musk made rare comments about a new Tesla vehicle to be designed in Berlin, adding that the reason behind the new vehicle program is to attract new talent from Europe: "I think there's a lot of talent, talented designers and engineers, in Europe. And a lot of the best people, they want to work somewhere where they are doing original design work. They don't want to just be doing the European version of something that was designed in California. So, I think it's important in order to attract the best talent to do original design." Electrek reports: Tesla has been putting a lot of efforts into attracting top talent and it has been successful at it in its home country. Furthermore, Musk commented on the vehicle segment that Tesla plans to address with a locally designed vehicle: "In Europe, I think it would make sense to do I guess a compact car -- perhaps a hatchback or something like that. Something that answers "what do most people want?' in a given region. In the US, cars tend to be bigger for personal taste reasons and in Europe, it tends to be smaller. If you try to park in dense urban environments, having a car that fits in tight parking spaces is important."

Musk didn't offer a timeline for Tesla to design and build the new electric car in Germany, but it's not expected to hit the market for at least a few more years as Tesla focuses on bringing the European Model Y to production at Gigafactory Berlin next year.
You can watch the interview where Musk makes the new comments here.
Data Storage

Memory vs. Disk vs. CPU: How 35 Years Has Changed the Trade-Offs (wordpress.com) 103

Long-time Slashdot reader 00_NOP is a software engineer (with a PhD in real-time computing) re-visits a historic research paper on the financial trade-offs between disk space (then costing about $20,000 per kilobyte) and (volatile) memory (costing about $5 per kilobyte): Thirty-five years ago that report for Tandem computers concluded that the cost balance between memory, disk and CPU on big iron favoured holding items in memory if they were needed every five minutes and using five bytes to save one instruction.

Update the analysis for today and what do you see?

Well my estimate is that we should aim to hold items that we have to access 10 times a second.

And needless to say, some techniques for saving data space are more efficient than they were 35 years ago, their article points out.

"The cost of an instruction per second and the cost of a byte of memory are approximately equivalent — that's tipped the balance somewhat towards data compression (eg., perhaps through using bit flags in a byte instead of a number of booleans for instance), though not by a huge amount."
Power

Tesla Model 3 Crash Hurls Battery Cells Into Nearby Home (extremetech.com) 232

According to a facebook post from the police department of Corvallis, Oregon, a Tesla Model 3 crashed at over 100mph, causing batteries from the Tesla to enter two different residences by breaking through the windows, one landing on a person's lap and the second landing on a bed, catching the bedding on fire. "A tire was ripped from the car during the collision and struck the second story siding of a nearby apartment complex with such force that it ruptured the water pipes within the wall, destroying the bathroom to the apartment and flooding the downstairs portion of the apartment as well," adds ExtremeTech. From the report: Tesla goes to some trouble to make certain that the battery cells in its vehicles don't go flying in the event of a collision. But the nature of this impact was obviously sufficient to break whatever solution the manufacturer has developed for dealing with the problem. Previous teardowns of the Model 3 battery pack have shown that the cells are sealed in place with high-strength epoxy.

With that said, there does appear to be a unique problem for BEVs in a situation like this. According to a follow-up post, the Model 3 battery cells can remain hot to the touch and might cause burns for up to 24 hours following involuntary dispersal. That kind of hazard -- specifically, the length of time you might be at risk from harm due to leftover detritus -- seems a potentially significant issue in certain situations. Tesla's epoxy solution shows it has considered the problem, but there may be reason to revisit things. It is unclear if individual cells remain at significant risk for secondary ignition after being separated from the main battery for any length of time or if the majority of fire risk is in the immediate period post-impact. The driver, incidentally, survived, which seems to say something good about Tesla's crash survival measures, at the least. The vehicle, needless to say, did not.

The Internet

Flash Animations Live Forever At the Internet Archive (archive.org) 29

The Internet Archive is now emulating Flash animations, games and toys in our software collection. Jason Scott writes in a blog post: Utilizing an in-development Flash emulator called Ruffle, we have added Flash support to the Internet Archive's Emularity system, letting a subset of Flash items play in the browser as if you had a Flash plugin installed. While Ruffle's compatibility with Flash is less than 100%, it will play a very large portion of historical Flash animation in the browser, at both a smooth and accurate rate.

We have a showcase of the hand-picked best or representative Flash items in this collection. If you want to try your best at combing through a collection of over 1,000 flash items uploaded so far, here is the link. You will not need to have a flash plugin installed, and the system works in all browsers that support Webassembly. For many people: See you later! Enjoy the Flash stuff!

Graphics

Cerebras' Wafer-Size Chip Is 10,000 Times Faster Than a GPU (venturebeat.com) 123

An anonymous reader quotes a report from VentureBeat: Cerebras Systems and the federal Department of Energy's National Energy Technology Laboratory today announced that the company's CS-1 system is more than 10,000 times faster than a graphics processing unit (GPU). On a practical level, this means AI neural networks that previously took months to train can now train in minutes on the Cerebras system.

Cerebras makes the world's largest computer chip, the WSE. Chipmakers normally slice a wafer from a 12-inch-diameter ingot of silicon to process in a chip factory. Once processed, the wafer is sliced into hundreds of separate chips that can be used in electronic hardware. But Cerebras, started by SeaMicro founder Andrew Feldman, takes that wafer and makes a single, massive chip out of it. Each piece of the chip, dubbed a core, is interconnected in a sophisticated way to other cores. The interconnections are designed to keep all the cores functioning at high speeds so the transistors can work together as one. [...] A single Cerebras CS-1 is 26 inches tall, fits in one-third of a rack, and is powered by the industry's only wafer-scale processing engine, Cerebras' WSE. It combines memory performance with massive bandwidth, low latency interprocessor communication, and an architecture optimized for high bandwidth computing.

Cerebras's CS-1 system uses the WSE wafer-size chip, which has 1.2 trillion transistors, the basic on-off electronic switches that are the building blocks of silicon chips. Intel's first 4004 processor in 1971 had 2,300 transistors, and the Nvidia A100 80GB chip, announced yesterday, has 54 billion transistors. Feldman said in an interview with VentureBeat that the CS-1 was also 200 times faster than the Joule Supercomputer, which is No. 82 on a list of the top 500 supercomputers in the world. [...] In this demo, the Joule Supercomputer used 16,384 cores, and the Cerebras computer was 200 times faster, according to energy lab director Brian Anderson. Cerebras costs several million dollars and uses 20 kilowatts of power.

Graphics

Radeon RX 6800 and 6800 XT Performance Marks AMD's Return To High-End Graphics (hothardware.com) 62

MojoKid writes: AMD officially launched its Radeon RX 6800 and Radeon RX 6800 XT graphics cards today, previously known in the PC gaming community as Big Navi. The company claimed these high-end GPUs would compete with NVIDIA's best GeForce RTX 30 series and it appears AMD made good on its claims. AMD's new Radeon RX 6800 XT and Radeon 6800 are based on the company's RDNA 2 GPU architecture, with the former sporting 72 Compute Units (CUs) and 2250MHz boost clock, while the RX 6800 sports 60 CUs at a 2105MHz boost clock. Both cards come equipped with 16GB of GDDR6 memory and 128MB of on-die cache AMD calls Infinity Cache, that improves bandwidth and latency, feeding the GPU in front of its 256-bit GDDR6 memory interface.

In the benchmarks, it is fair to say the Radeon RX 6800 is typically faster than an NVIDIA GeForce RTX 3070 just as AMD suggested. Things are not as cut and dry for the Radeon RX 6800 XT though, as the GeForce RTX 3080 and Radeon RX 6800 XT trade victories depending on the game title or workload, but the RTX 3080 has an edge overall. In DXR Ray Tracing performance, NVIDIA has a distinct advantage at the high-end. Though the Radeon RX 6800 wasn't too far behind and RTX 3070, neither the Radeon RX 6800 XT or 6800 card came close the GeForce RTX 3080. Pricing is set at $649 and $579 for the AMD Radeon RX 6800 XT and Radeon RX 6800, respectively and the cards are on sale as of today. However, demand is likely to be fierce as this new crop of high-end graphics cards from both companies have been quickly evaporating from retail shelves.

EU

EU Plans To Increase Offshore Windfarm Capacity By 250% (theguardian.com) 111

The capacity of the EU's offshore windfarms in the North Sea, the Baltic, the Atlantic, the Mediterranean and the Black Sea will be increased by 250% under a draft plan drawn up by the European commission. The Guardian reports: The total energy generating capacity in Europe's seas stands at 23 gigawatts (GW), from 5,047 grid-connected wind turbines across 12 countries, including the UK. Under a European commission strategy, the 27 EU member states alone would achieve a capacity of 60GW by 2030 and 300GW by 2050, with Germany set to hugely increase its investment in the sector.

According to the leaked paper, the commission "estimates that an installed capacity of 300GW of offshore wind [and around 60GW of ocean energies] by 2050 would be needed in the integrated, greener and climate neutral energy system of 2050." The commission writes: "This is feasible for a sector where Europe has gained unrivalled technological, scientific and industrial experience and where strong capacity exists already across the supply chain, from manufacturing to shipping and installation. Nonetheless, it is a very challenging horizon. It means that offshore renewable energy capacity should be multiplied by 25 times by 2050. The investment needed is estimated up to 789 billion pounds."

The UK, which left the EU in January, has the largest amount of offshore wind capacity in Europe, with 45% of all installations. Germany is second with 34%, followed by Denmark (8%), Belgium (7%) and the Netherlands (5%). Over the summer, the German government said it would also increase its current 7.5GW of capacity to 20GW by 2030, with a target of 40GW by 2040. But the European commission has called for a more "resolute" approach across the bloc. According to a leak of the strategy obtained by the Euractiv news website, the "very challenging" target for new windfarms would come with an expected price tag of 789 billion pounds, creating 62,000 jobs in the offshore wind industry.

Transportation

China Built the First Electric Car Designed Exclusively For Ride-Hailing (theverge.com) 15

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

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

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

Desktops (Apple)

Apple's M1 Is Exceeding Expectations (extremetech.com) 274

Reviews are starting to pour in of Apple's MacBook Pro, MacBook Air and Mac Mini featuring the new M1 ARM-based processor -- and they're overwhelmingly positive. "As with the Air, the Pro's performance exceeds expectations," writes Nilay Patel via The Verge.

"Apple's next chapter offers strong performance gains, great battery and starts at $999," says Brian Heater via TechCrunch.

"When Apple said it would start producing Macs with its own system-on-chip processors, custom CPU and GPU silicon (and a bunch of other stuff) to replace parts from Intel and AMD, we figured it would be good. I never expected it would be this good," says Jason Cross in his review of the MacBook Air M1.

"The M1 is a serious, serious contender for one of the all-time most efficient and highest-performing architectures we've ever seen deploy," says ExtremeTech's Joel Hruska.

"Spending a few days with the 2020 Mac mini has shown me that it's a barnburner of a miniature desktop PC," writes Chris Welch via The Verge. "It outperforms most Intel Macs in several benchmarks, runs apps reliably, and offers a fantastic day-to-day experience whether you're using it for web browsing and email or for creative editing and professional work. That potential will only grow when Apple inevitably raises the RAM ceiling and (hopefully) brings back those missing USB ports..."

"Quibbling about massively parallel workloads -- which the M1 wasn't designed for -- aside, Apple has clearly broken the ice on high-performance ARM desktop and laptop designs," writes Jim Salter via Ars Technica. "Yes, you can build an ARM system that competes strongly with x86, even at very high performance levels."

"The M1-equipped MacBook Air now packs far better performance than its predecessors, rivaling at times the M1-based MacBook Pro. At $999, it's the best value among macOS laptops," concludes PCMag.

"For developers, the Apple Silicon Macs also represent the very first full-fledged Arm machines on the market that have few-to-no compromises. This is a massive boost not just for Apple, but for the larger Arm ecosystem and the growing Arm cloud-computing business," writes Andrei Frumusanu via AnandTech. "Overall, Apple hit it out of the park with the M1."

Japan

Japan's ARM-Based Supercomputer Leads World In Top500 List; Exascale Expected In 2021 (techtarget.com) 25

dcblogs writes: Japan's Fugaku ARM-based supercomputer is the world's most powerful in the latest Top500 list, setting a world record of 442 petaflops. But this was otherwise an unremarkable year for supercomputers, with a "flattening performance curve," said Jack Dongarra, one of the academics behind the twice-a-year ranking and director of the Innovative Computing Laboratory at the University of Tennessee. This is a result of Moore's Law slowing down as well as a slowdown in the replacement of older systems, he said. But the U.S. is set to deliver an exascale system -- 1,000 petaflops -- next year and China as well. Meanwhile, the EU has a 550 petaflop system in development in Finland. "On the Top500 list, the second-ranked system was IBM Power Systems at nearly 149 petaflops using its Power9 CPUs and Nvidia Tesla GPUs. It is at the Oak Ridge National Lab in Tennessee," adds TechTarget.

"Third place went to Sierra supercomputer, which also uses Power9 and Nvidia GPUs, at about 95 petaflops. It is at Lawrence Livermore National Laboratory in Livermore, Calif."
Data Storage

Ask Slashdot: What's the Ultimate Backup System? Cloud? Local? Sync? Dupes? Tape...? (bejoijo.com) 289

Long-time Slashdot reader shanen noticed a strange sound in one of their old machines, prompting them to ponder: what is the ultimate backup system? I've researched this topic a number of times in the past and never found a good answer...

I think the ultimate backup would be cloud-based, though I can imagine a local solution running on a smart storage device — not too expensive, and with my control over where the data is actually stored... Low overhead on the clients with the file systems that are being backed up. I'd prefer most of the work to be done on the server side, actually. That work would include identifying dupes while maintaining archival images of the original file systems, especially for my searches that might be based on the original folder hierarchies or on related files that I can recall being created around the same time or on the same machine...

How about a mail-in service to read old CDs and floppies and extract any recoverable data? I'm pretty sure I spotted an old box of floppies a few months ago. Not so much interested in the commercial stuff (though I do feel like I still own what I paid for) as I'm interested in old personal files — but that might call for access to the ancient programs that created those files.

Or maybe you want to share a bit about how you handle your backups? Or your version of the ultimate backup system...?

Slashdot reader BAReFO0t recommends "three disks running ZFS mirroring with scraping and regular snapshots, and two other locations running the same setup, but with a completely independent implementation. Different system, different PSU, different CPU manufacturer, different disks, different OS, different file system, different backup software, different building construction style, different form of government, etc."

shanen then added "with minimal time and effort" to the original question — but leave your own thoughts and suggestions in the comments.

What's your ultimate backup solution?
Intel

Celebrate Intel's 4004 Microprocessor Turning 49 Today (4004.com) 29

Tim McNerney is the project leader at 4004.com, a site commemorating Intel's original 4004 microprocessor. He's also long-time Slashdot reader mcpublic, and shares news of a new open source adapter — plus a great moment chip history: Even though Intel debuted its groundbreaking 4004 on November 15th, 1971, 49 years ago today, in the pages of Electronics News, there is something about Intel's very first microprocessor that keeps inspiring engineers to pay tribute to this historic chip.

Turkish iPhone engineer, Erturk Kocalar, (now at Google) and the force behind 8bitforce.com, just added this 4-bit granddaddy to his open-source lineup of 8-bit "Retroshields." These elegant little adapters let you score your favorite, vintage microprocessor on eBay and actually play around with it without having to wire up a multi-chip memory and the peripherals needed to make your little "engine" jolly fun. An Arduino emulates the rest of the system for you in software and lets you program and poke at your relic via USB from the comfort of a modern laptop.

Before FPGAs and yes, even before electronic CAD, there was a tradition of emulating hardware using software. In fact, it is central to the 4004 Genesis story. Busicom, a Japanese maker of mechanical adding machines, had designed its own electronic calculator chip-set and eagerly approached the now-famous Silicon Valley chip-maker to manufacture it. Back in 1969 Intel was just a tiny startup hoping to obsolete core memory with commodity semiconductors, and they didn't have extra logic designers on-staff. But Intel did have a prescient counter-proposal: we'll build you a general purpose computer-on-a-chip and emulate your custom calculator architecture using a ROM-conserving byte-code interpreter. Busicom agreed, and Intel managed to hire Italian superstar Federico Faggin away from Fairchild to craft a novel, customer-programmable microprocessor, which later, in 1975, German mechanical taxi meter maker Argo Kienzle would go on to launch the world's first electronic taxi meter. Starting to see a pattern of progress in everyday automation?

For photos, schematics, mask artwork, code, graphical simulators, more history, and the findings of a dedicated team of "digital archeologists," visit 4004.com

Power

Iron Powder Passes First Industrial Test As Renewable, Carbon Dioxide-Free Fuel (ieee.org) 103

An anonymous reader quotes a report from IEEE Spectrum: While setting fire to an iron ingot is probably more trouble than it's worth, fine iron powder mixed with air is highly combustible. When you burn this mixture, you're oxidizing the iron. Whereas a carbon fuel oxidizes into CO2, an iron fuel oxidizes into Fe2O3, which is just rust. The nice thing about rust is that it's a solid which can be captured post-combustion. And that's the only byproduct of the entire business -- in goes the iron powder, and out comes energy in the form of heat and rust powder. Iron has an energy density of about 11.3 kWh/L, which is better than gasoline. Although its specific energy is a relatively poor 1.4 kWh/kg, meaning that for a given amount of energy, iron powder will take up a little bit less space than gasoline but it'll be almost ten times heavier. It might not be suitable for powering your car, in other words. It probably won't heat your house either. But it could be ideal for industry, which is where it's being tested right now.

Researchers from TU Eindhoven have been developing iron powder as a practical fuel for the past several years, and last month they installed an iron powder heating system at a brewery in the Netherlands, which is turning all that stored up energy into beer. Since electricity can't efficiently produce the kind of heat required for many industrial applications (brewing included), iron powder is a viable zero-carbon option, with only rust left over. So what happens to all that rust? This is where things get clever, because the iron isn't just a fuel that's consumed -- it's energy storage that can be recharged. And to recharge it, you take all that Fe2O3, strip out the oxygen, and turn it back into Fe, ready to be burned again. It's not easy to do this, but much of the energy and work that it takes to pry those Os away from the Fes get returned to you when you burn the Fe the next time. The idea is that you can use the same iron over and over again, discharging it and recharging it just like you would a battery.

To maintain the zero-carbon nature of the iron fuel, the recharging process has to be zero-carbon as well. There are a variety of different ways of using electricity to turn rust back into iron, and the TU/e researchers are exploring three different technologies based on hot hydrogen reduction (which turns iron oxide and hydrogen into iron and water). [...] Both production of the hydrogen and the heat necessary to run the furnace or the reactors require energy, of course, but it's grid energy that can come from renewable sources. [...] Philip de Goey, a professor of combustion technology at TU/e, told us that he hopes to be able to deploy 10 MW iron powder high-temperature heat systems for industry within the next four years, with 10 years to the first coal power plant conversion.

Google

Google Is Reportedly Working On Linking Up Nest Audio Speakers With Chromecast Streaming Devices (theverge.com) 16

In a Wall Street Journal article comparing Apple's HomePod Mini against the competition, a Google spokesperson hinted that the company is working on integrating its Chromecast streaming devices and Nest Audio speakers. The Verge reports: Being able to combine a streaming platform with a smart phone speaker makes a lot of sense for these companies. After all, customers already have all the hardware in their living room -- why not repurpose those speakers to improve the sound of your Netflix movies? Plus, there's the added bonus of inciting customers to stay within a company's ecosystem. You're more likely to buy a HomePod mini if it works with the Apple TV you already have. The ability to link smart speakers to streaming boxes is also something that both Apple and Amazon already offer.

Google's plans are extremely vague for now -- The Wall Street Journal makes no mention of which devices the company is looking to link together, when the feature will arrive, or what sort of use cases it's looking to achieve. But with Google increasingly looking to push users toward its smart home devices, making them all work better together just makes good sense.

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