China Is 3D Printing a Massive 590-Foot-Tall Dam, And Constructing It With Without Humans

Chinese engineers will take the ideas of a research paper and turn it into the world’s largest 3D-printed project. Popular Mechanics: Within two years, officials behind this project want to fully automate the unmanned construction of a 590-foot-tall dam on the Tibetan Plateau to build the Yangqu hydropower plant — completely with robots. The paper, published last month in the Journal of Tsinghua University (Science and Technology), laid out the plans for the dam, as first reported in the South China Morning Post. Researchers from the State Key Laboratory of Hydroscience and Engineering at Tsinghua University in Beijing explain the backbone of automation for the planned Yellow River dam that will eventually offer nearly five billion kilowatt-hours of electricity annually. (It’s worth noting that China’s Three Gorges Dam — a hydroelectric gravity dam spanning the Yangtze River — is the world’s largest power station in terms of energy output.) But it’s hard to tell what’s more ambitious: the fact that the researchers plan to turn a dam site into effectively a massive 3D-printing project, or that through every step of the process the project eliminates human workers as they go fully robotic.

In the dam-“printing” process, machinery will deliver construction materials to the worksite — the exact location needed, eliminating human error, they say — and then unmanned bulldozers, pavers, and rollers will form the dam layer by layer. Sensors on the rollers will keep the artificial intelligence (AI) system informed about the firmness and stability of each of the 3D-printed layers until it reaches 590 feet in height, about the same height as the Shasta Dam in California and shorter than the Hoover Dam’s 726 feet. With the largest existing 3D-printed structures rising about 20 feet tall — from houses in China to an office building in Dubai — the exploration of 3D-printed projects continues to expand. Already we’ve seen a 1,640-foot-long retention wall in China, housing and office buildings across the globe, and now the U.S. Army has plans for barracks at Fort Bliss in Texas.

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iFixit On Right To Repair’s Remaining Obstacles, Hope

iFixit CEO Kyle Wiens sat down with Ars Technica to discuss the fight for the right to repair. Here’s an excerpt from their report: Tech repairs got complicated in 1998 when Congress passed the Digital Millennium Copyright Act [PDF]. Section 1201 of the copyright law essentially made it illegal to distribute tools for, or to break encryption on, manufactured products. Created with DVD piracy in mind, it made fixing things like computers and tractors significantly harder, if not illegal, without manufacturer permission. It also represented “a total sea change from what historic property rights have been,” Wiens said. This makes Washington, DC, the primary battleground for the fight for the right to repair. “Because this law was passed at the federal level, the states can’t preempt. Congress at the federal level reset copyright policy. This fix has to happen at the US federal level,” Wiens told Ars Technica during the Road to Frontiers talk.

The good news is that every three years, the US Copyright Office holds hearings to discuss potential exemptions. Right to repair advocates are hoping Congress will schedule this year’s hearing soon. Wiens also highlighted the passing of the Freedom to Repair Act [PDF] introduced earlier this year as critical for addressing Section 1201 and creating a permanent exemption for repairing tech products.

Apple’s self-service repair program launched last month marked a huge step forward for the right to repair initiated by a company that has shown long-standing resistance. Wiens applauded the program, which provides repair manuals for the iPhone 12, 13, and newest SE and will eventually extend to computers. He emphasized how hard it is for iFixit to reverse-engineer such products to determine important repair details, like whether a specific screw is 1 or 1.1 mm. […]

Wiens envisioned a world where gadgets not only last longer but where you may also build relationships with local businesses to keep your products functioning. He lamented the loss of businesses like local camera and TV repair shops extinguished by vendors no longer supplying parts and tools. […] He also discussed the idea of giving gadgets second and even third lives: An aged smartphone could become a baby monitor or a smart thermostat. “I think we should be talking about lifespans of smartphones in terms of 20, 25 years,” Wiens said.
The livestream of the discussion can be viewed here.

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Foreign Torrent Site Operator Can Be Sued in the US, Court Says

Twitter Will Hide Tweets That Share False Info During a Crisis

On Thursday, Twitter announced a new policy for dealing with misinformation during a period of crisis, establishing new standards for gating or blocking the promotion of certain tweets if they are seen as spreading misinformation. The Verge reports: “Content moderation is more than just leaving up or taking down content,” explained Yoel Roth, Twitter’s head of safety and integrity, in a blog post detailing the new policy, “and we’ve expanded the range of actions we may take to ensure they’re proportionate to the severity of the potential harm.” The new policy puts particular scrutiny on false reporting of events, false allegations involving weapons or use of force, or broader misinformation regarding atrocities or international response.

Hoax tweets and other misinformation regularly go viral during emergencies, as users rush to share unverified information. The sheer speed of events makes it difficult to implement normal verification or fact-checking systems, creating a significant challenge for moderators. Under the new policy, tweets classified as misinformation will not necessarily be deleted or banned; instead, Twitter will add a warning label requiring users to click a button before the tweet can be displayed (similar to the existing labels for explicit imagery). The tweets will also be blocked from algorithmic promotion. The stronger standards are meant to be limited to specific events. Twitter will initially apply the policy to content concerning the ongoing Russian invasion of Ukraine, but the company expects to apply the rules to all emerging crises going forward. For the purposes of the policy, crisis is defined as “situations in which there is a widespread threat to life, physical safety, health, or basic subsistence.”

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Once Frenemies, Elastic and AWS Are Now Besties

Paul Sawers writes via VentureBeat: It has been a frosty few years for Elastic and Amazon’s AWS cloud computing arm, with the duo frequently locking horns over various issues relating to Elastic’s ex-open-source database search engine — Elasticsearch. To cut a War and Peace-esque story short, Amazon had introduced its own managed Elasticsearch service called Amazon Elasticsearch Service way back in 2015, and in the intervening years the “confusion” this (among other shenanigans) caused in the cloud sphere ultimately led Elastic to transition Elasticsearch from open source to “free and open” (i.e., a less permissive license), exerting more control over how the cloud giants of the world could use the product and Elasticsearch name. In response, Amazon launched an Elasticsearch “fork” called OpenSearch, and the two companies finally settled a long-standing trademark dispute, which effectively meant that Amazon would stop associating the Elasticsearch brand with Amazon’s own products. This was an important final piece of the kiss-and-make-up puzzle, as it meant that customers searching for Elastic’s fully-managed Elasticsearch service (Elastic Cloud) in the AWS Marketplace, wouldn’t also stumble upon Amazon’s incarnation and wonder which one they were actually looking for.

Fast-forward to today, and you would hardly know that the two companies were once at loggerheads. Over the past year, Elastic and Amazon have partnered to bring all manner of technologies and integrations to market, and they’ve worked to ensure that their shared customers can more easily onboard to Elastic Cloud within Amazon’s infrastructure. Building on a commitment last month to make AWS and Elastic work even better together, Elastic and AWS today announced an even deeper collaboration, to “build, market and deliver” frictionless access to Elastic Cloud on AWS. In essence, this means that the two companies will go full-throttle on their “go-to-market” sales and marketing strategies — this includes a new free 7-day trial for customers wanting to test-drive Elastic Cloud directly from the AWS Marketplace.

On top of that, AWS has committed to working with Elastic to generate new business across Amazon’s various cloud-focused sales organizations — this is a direct result of Elastic joining the AWS ISV Accelerate program. All of this has been made possible because of the clear and distinct products that now exist — Amazon has OpenSearch, and Elastic has Elasticsearch, which makes collaboration that much easier. What does Amazon get for all of this? “Put simply, companies accessing Elastic’s services on AWS infrastructure drive a lot of cloud consumption — which translates into ka-ching for Amazon,” adds Sawers.

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Canada Set To Ban Chinese Tech Giant Huawei From 5G Network

Canada is planning to ban Huawei from working on Canada’s fifth-generation networks. CBC.ca reports: The move puts Canada in line with key intelligence allies like the United States which have expressed concerns about the national security implications of giving the Chinese tech giant access to key infrastructure. […] Critics have warned that Huawei’s participation in Canada’s 5G networks could give the company an inside look at how, when and where Canadians use internet-connected devices — and that the Chinese government could force the company to hand over that personal information. China’s National Intelligence Law says Chinese organizations and citizens must support, assist and co-operate with state intelligence work. […] Huawei insists it is a fiercely independent company that does not engage in espionage for anyone, including Beijing.

Huawei already supplies some Canadian telecommunications firms with 4G equipment. As Global News has reported, telecommunication companies spent hundreds of millions of dollars on Huawei equipment while the federal government’s review of 5G was ongoing — although that number has waned over the years. It’s not clear whether Ottawa’s decision to bar Huawei from 5G will require those companies to rip out existing Huawei equipment, or whether compensation would be provided.

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Solar-Powered Desalination Device Wins MIT $100K Competition

The winner of this year’s MIT $100K Entrepreneurship Competition is commercializing a new water desalination technology. MIT News reports: Nona Desalination says it has developed a device capable of producing enough drinking water for 10 people at half the cost and with 1/10th the power of other water desalination devices. The device is roughly the size and weight of a case of bottled water and is powered by a small solar panel. The traditional approach for water desalination relies on a power-intensive process called reverse osmosis. In contrast, Nona uses a technology developed in MIT’s Research Laboratory of Electronics that removes salt and bacteria from seawater using an electrical current.

“Because we can do all this at super low pressure, we don’t need the high-pressure pump [used in reverse osmosis], so we don’t need a lot of electricity,” says Crawford, who co-founded the company with MIT Research Scientist Junghyo Yoon. “Our device runs on less power than a cell phone charger.” The company has already developed a small prototype that produces clean drinking water. With its winnings, Nona will build more prototypes to give to early customers. The company plans to sell its first units to sailors before moving into the emergency preparedness space in the U.S., which it estimates to be a $5 billion industry. From there, it hopes to scale globally to help with disaster relief. The technology could also possibly be used for hydrogen production, oil and gas separation, and more.

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Older People Using TikTok To Defy Ageist Stereotypes, Research Finds

Older TikTok users are using the online platform, regarded as the virtual playground of teenagers, to defy ageist stereotypes of elderly people as technophobic and frail. The Guardian reports: Research has found increasing numbers of accounts belonging to users aged 60 and older with millions of followers. Using the platform to showcase their energy and vibrancy, these TikTok elders are rewriting expectations around how older people should behave both on and off social media. “These TikTok elders have become successful content creators in a powerful counter-cultural phenomenon in which older persons actually contest the stereotypes of old age by embracing or even celebrating their aged status,” said Dr Reuben Ng, the author of the paper Not Too Old for TikTok: How Older Adults are Reframing Ageing, and an assistant professor at Yale University. Interestingly, said Ng, most TikTok elders are women who “fiercely resist common stereotypes of older women as passive, mild-mannered and weak, instead opting to present themselves as fierce or even foul-mouthed,” he said. […]

The paper looked at 1,382 videos posted by TikTok users who were aged 60 or older and had between 100,000 and 5.3 million followers. In total, their videos, all of which explicitly discussed their age, had been viewed more than 3.5 billion times. Ng found that 71% of these videos — including those from accounts such as grandadjoe1933, who has 5.3 million followers, and dolly_broadway, who has 2.4 million followers — were used to defy age stereotypes. A recurring motif was the “glamma”, a portmanteau combining “glamorous” and “grandma”, with videos including those of a 70-year-old woman joyfully parading around the streets in a midriff-bearing top.

Almost one in five of the videos analyzed made light of age-related vulnerabilities, and one in 10 called out ageism among both younger people and their own contemporaries. Other videos positioned older users as superior to younger people. “I may be 86 but I can still drink more than you lightweights” says one clip. “I may be 86 but I can still twerk better than you,” says another, showing an octogenarian leaping up from a fall down the stairs with a twerk.

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Netflix Customers Canceling Service Increasingly Includes Long-Term Subscribers

Netflix lost 200,000 subscribers last quarter and potentially two million this current period, according to a note to shareholders from last month. Now, new research highlights that the number of long-standing subscribers canceling Netflix rose precipitously in the past few years. 9to5Mac reports: The data provided by the research firm Antenna to The Information shows that people who had been subscribers for more than three years accounted for just 5% of total cancelations at the start of 2022, while it hit 13% in the first quarter of 2022: “Newbie subscribers, meantime, accounted for only 60% of cancellations in the quarter, down from 64% in the fourth quarter. Also in the first quarter, overall cancellations rose to 3.6 million people, compared with around 2.5 million in each of the preceding five quarters. Antenna says it draws its data from a panel of 5 million Americans who anonymously contribute their streaming subscriptions.”

While Netflix is losing ground, the streaming market as a whole is gaining more subscribers, and Antenna’s data suggest a connection between the price increase and Netflix’s subscriber losses: “‘Consumers vote with their wallets on a monthly basis, and now there are just more viable candidates on the ballot,’ said Brendan Brady, media and entertainment lead at Antenna. Also, since many entertainment companies, like NBCUniversal and Disney, have pulled their shows off Netflix and put them on their own services, Netflix has had to rely more on its originals, which have been hit or miss, he said.”

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