New “targeted healing” approach rejuvenates run-down battery materials

Rather than break down cathode material, why not restore it?

Stock photo displays rows of batteries.

Enlarge (credit: Peter Miller / Flickr)

As electric vehicle adoption grows, the need for battery recycling is growing along with it. Typically, recycling involves breaking the battery down into pure chemical components that can be reconstituted for brand-new battery materials. But what if—at least for some battery chemistries—that’s overkill?

A new study led by Panpan Xu at the University of California, San Diego shows off a very different technique for lithium-iron-phosphate (LFP) batteries. This isn’t the most energy-dense type of lithium-ion battery, but it is economical and long-lived. (It’s the chemistry Tesla wants to rely on for shorter-range vehicles and grid storage batteries, for example.) Its low cost cuts both ways—less expensive ingredients mean less profit from recycling operations. But rejuvenating the lithium-iron-phosphate cathode material without breaking it down and starting over seems to be possible.

The idea behind the study relies on knowledge of how LFP battery capacity degrades. On the cathode side, the crystalline structure of the material doesn’t change over time. Instead, lithium ions increasingly fail to find their way back into their slots in the crystal during battery discharge. Iron atoms can move and take their place, plugging up the lithium pathway. If you could convince iron atoms to return to their assigned seats and repopulate with lithium atoms, you could have cathode material that is literally “as good as new.”

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Facebook AI catches 95% of hate speech; company still wants mods back in office

Facebook wants butts in seats to enforce rules. Workers want not to get COVID.

Facebook logo on a street sign outside a wooded campus.

Enlarge / Facebook's Menlo Park, California, headquarters as seen in 2017. (credit: Jason Doiy | Getty Images)

Facebook's software systems get ever better at detecting and blocking hate speech on both the Facebook and Instagram platforms, the company boasted today—but the hardest work still has to be done by people, and many of those people warn that the world's biggest social media company is putting them in unsafe working conditions.

About 95 percent of hate speech on Facebook gets caught by algorithms before anyone can report it, Facebook said in its latest community-standards enforcement report. The remaining 5 percent of the roughly 22 million flagged posts in the past quarter were reported by users.

That report is also tracking a new hate-speech metric: prevalence. Basically, to measure prevalence, Facebook takes a sample of content and then looks for how often the thing they're measuring—in this case, hate speech—gets seen as a percentage of viewed content. Between July and September of this year, the figure was between 0.10 percent and 0.11 percent, or about 10-11 views of every 10,000.

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Asus Chromebox 4 is an Intel Comet Lake mini PC with WiFi 6, support for 3 displays

The latest member of the Asus Chromebox family is a 5.8″ x 5.8″ x 1.6″ computer with a 10th-gen Intel Comet Lake processor, support for up to 16GB of RAM, and support for up to three displays thanks to two HDMI ports and a USB Type-C…

The latest member of the Asus Chromebox family is a 5.8″ x 5.8″ x 1.6″ computer with a 10th-gen Intel Comet Lake processor, support for up to 16GB of RAM, and support for up to three displays thanks to two HDMI ports and a USB Type-C port. The new Asus Chromebox 4 is the same size as […]

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Torrent Site Admin and Uploader Can’t Be Sued in US

The makers of the movie ‘Hellboy’ have failed to obtain a default judgment against the operator of the now-defunct torrent site MKVCage. A federal court in Hawaii ruled that US courts don’t have jurisdiction over the foreign defendant, and have denied the request for $150,000 in piracy damages. The movie company is considering to appeal the ruling.

From: TF, for the latest news on copyright battles, piracy and more.

hellboyLast year, the makers of the superhero film “Hellboy” (HB Productions) filed a lawsuit against torrent site MKVCage at a Hawaii federal court.

The movie company accused the site and its operator of promoting and distributing pirated copies of the movie while demanding an end to the activity.

The lawsuit had an almost immediate effect as MKVCage became unreachable soon after the case went public. At the same time, the uploader stopped pushing torrents to other sites as well. This meant that part of the plan had succeeded, but HB Productions wanted more.

Hellboy Demands Piracy Damages

The company argued that the torrent site caused irreparable damage and demanded compensation from the alleged brains behind the operation, a Pakistani man named Muhammad Faizan.

Since Faizan didn’t show up in court, the movie company’s attorney Kerry Culpepper requested a default judgment. First, he demanded $270,000 but after the court raised questions about the calculation, this figure was lowered to $150,000. However, the amount wasn’t the only problem.

The Hawaii federal court also questioned whether the defendant, who didn’t put up a defense, could actually be sued in a US Court. According to Magistrate Judge Kenneth J. Mansfield, this is not the case.

Can MKVCage’s Operator be Sued?

In a recommendation to the court, issued in September, Mansfield concluded that the filmmakers failed to show that MKVCage’s activities were expressly aimed at the United States. In addition, the defendant’s contacts with the US were insufficient to invoke nationwide jurisdiction.

Hellboy’s attorney objected to this conclusion, listing the many connections between the site and the US. For example, MKVCage used the services of companies such as Namecheap, Twitter and Cloudflare, targeted ads at US visitors, and has a DMCA policy that is rooted in US law.

This week, US District Court Judge Michael Seabright had the final say in the matter. Based on the arguments presented, he concludes that a US court doesn’t have jurisdiction over the Pakistani defendant.

US Courts Don’t Have Jurisdiction

“[T]he court concludes that Plaintiff failed to demonstrate that Defendant’s activities were expressly aimed at the United States or Hawaii. Thus, Plaintiff failed to show that Defendant’s contacts are sufficient to invoke nationwide jurisdiction,” Judge Seabright writes.

Hellboy’s lawyer cited several cases where courts ruled that jurisdiction is possible in similar circumstances. However, Judge Seabright notes that those were issued before a recent and more strict appeals court ruling.

In that case (AMA v. Wanat), there were also several connections, including many US visitors. However, there was no evidence that the US was the “focal point” of the website and the “harm suffered.” The same applies in this case.

For example, the website’s advertisements may have been geo-targeted specifically at the US public, but the same also applies to other regions. The geo-targeting itself is not exclusive to the US.

The fact that MKVCage used US companies is not sufficient either. Namecheap, Twitter, and other intermediaries have a global presence. People generally don’t choose to use them because they want to target a US audience specifically.

Uploads Don’t Target US Specifically

Even the argument that the defendant uploaded many United States-produced movies onto his websites doesn’t suffice, as American movies are popular all over the world.

“Plaintiff attempts to distinguish Wanat by arguing that Defendant, not website users, uploaded United States-produced movies onto his websites. But the global market for United States-produced movies renders Defendant’s posting of content to his websites irrelevant for purposes of establishing express aiming.

“Nor does Plaintiff allege any facts showing that Defendant specifically targeted the United States and/or Hawaii in choosing to upload files of Hellboy, or that Defendant was physically present in the United States to upload his files.”

Finally, MKVCage’s DMCA policy doesn’t prove jurisdiction either. Hellboy’s attorney argued that this showed that the defendant had a “clear intention to protect his safe harbor” rights under United States law. However, Judge Seabright counters this, noting that the site didn’t have a DMCA agent listed, as is required by law.

Judgment Denied, But Not All is Over Yet

Based on the evidence provided, the court can’t conclude that the defendant expressly aimed his infringing activities at the United States or Hawaii. As a result, the request for a default judgment including $150,000 in damages is denied.

Judge Seabright didn’t end the case completely, however. Because the denial is in part based on new jurisdiction, Hellboy is allowed to file an amended complaint next month. If that doesn’t happen, the case will be dismissed.

Hellboy’s attorney Kerry Culpepper hasn’t decided yet what the next step will be. Amending the complaint is an option, but the Appeal Court as well, as there’s a related case with a similar outcome which he would like to fight as well.

“We are considering amending the complaint or requesting leave to immediately appeal to the Ninth Circuit Court of Appeals jointly with 42 Ventures, LLC since the issues of these two cases are related and open a potential black hole for all intellectual property holders,” Culpepper says.

MKVCage, meanwhile, remains offline and the similarly-named uploader has abandoned his accounts on other torrent sites as well.

A copy of the order from Chief US District Court Judge Michael Seabright is available here (pdf)

From: TF, for the latest news on copyright battles, piracy and more.

Google Chrome is available as an Apple M1 native app today

Chrome runs much better natively than translated—we’ve got benchmarks inside.

Chrome isn't available in the App Store—you'll need to download it using Safari. When you do, Google will ask you which version you'd like to download.

Enlarge / Chrome isn't available in the App Store—you'll need to download it using Safari. When you do, Google will ask you which version you'd like to download. (credit: Jim Salter)

The Google Chrome browser is now available as an Apple M1 native application, for those of you lucky enough to have M1 Mac Mini, Macbook Air, or Macbook Pro systems. (If you've been living under a rock for the last few weeks, the M1 is Apple's newest in-house-designed ARM silicon, which the company began selling in traditional form-factor laptops and Mac Minis for the first time this week.)

Google presents Chrome for download as either an x86_64 package or an M1 native option—which comes across as a little odd, since the M1 native version is actually a universal binary, which works on either M1 or traditional Intel Macs. Presumably, Google is pushing separate downloads due to the much smaller file size necessary for the x86_64-only package—the universal binary contains both x86_64 and ARM applications, and weighs in at 165MiB to the Intel-only package's 96MiB.

Performance

In our earlier testing, we declared that the previous version of Google Chrome—which was available only as an x86_64 binary, and needed to be run using Rosetta 2—was perfectly fine. That was and is a true statement; we find it difficult to believe anyone using the non-native binary for Chrome under an M1 machine would find it "slow." That said, Google's newer, ARM-native .dmg is available today, and—as expected—it's significantly faster, if you're doing something complicated enough in your browser to notice.

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Google and NVIDIA are bringing game streaming to iOS (via the web browser)

There are a growing number of ways to stream console-quality games to a smartphone or tablet… as long as they’re running Android. Google, Microsoft, NVIDIA, and Amazon have all launched game streaming services in the past year, and Apple&#…

There are a growing number of ways to stream console-quality games to a smartphone or tablet… as long as they’re running Android. Google, Microsoft, NVIDIA, and Amazon have all launched game streaming services in the past year, and Apple’s App Store policies have kept all of those companies from making iPhone or iPad apps available. […]

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The new Apple Watch Series 6 and Apple Watch SE are both $50 off today

Dealmaster also has deals on Roombas, Bose headphones, and more.

Collage of electronic consumer goods against a white background.

Enlarge (credit: Ars Technica)

Today's Dealmaster is headlined by a pair of $50 discounts on the Apple Watch Series 6 and Apple Watch SE. The deals bring the two newest Apple smartwatches down to $350 and $230, respectively. While we can't say for certain whether these will be the deals we see during Black Friday next week, they are the biggest discounts on the watches to date—both wearables only launched in September—and Target is advertising them as Black Friday prices.

Our Apple Watch Series 6 review found that while Apple's highest-end model isn't perfect—particularly when it comes to sleep tracking performance—it's still the best smartwatch for most people. (Or, at least, most iPhone owners.) The Apple Watch SE makes you accept a few more trade-offs by comparison: there's no always-on display, no ECG or blood oxygen measurements for health buffs, and fewer case options. But for those who don't need the Series 6's advanced health features, the Watch SE still runs Apple's watchOS 7 software, has faster and nicer-feeling hardware than the cheaper Series 3, and, most importantly, costs significantly less.

If you don't need a new Apple Watch, though, we also have deals on Bose wireless headphones, Mario Kart 8 Deluxe for the Nintendo Switch, Roomba robot vacuums, and much more. You can check out our full rundown below.

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Google is testing end-to-end encryption in Android Messages

End-to-end encryption is growing in popularity. Google’s is getting on board.

Stylized illustration of a padlock.

Enlarge / Security padlock in circuit-board background. (credit: Getty Images | Yuichiro Chino)

Google has begun rolling out end-to-end encryption for Rich Communication Service, the text-messaging standard the industry giant is pushing as an alternative to SMS.

Abbreviated as RCS, Rich Communication Service provides a, well, richer user experience than the ancient SMS standard. Typing indicators, presence information, location sharing, longer messages, and better media support are key selling points. They lead to things like better-quality photos and videos, chat over Wi-Fi, knowing when a message is read, sharing reactions, and better capabilities for group chats. As Ars Review Editor Ron Amadeo noted last year, RCS interest from carriers has been tepid, so Google has been rolling it out with limited support.

Google said on Thursday that it has now completed its worldwide rollout of RCS and is moving to a new phase—end-to-end encryption. Interest in end-to-end encryption has mushroomed over the past decade, particularly with revelations from Edward Snowden of indiscriminate spying of electronic communications by the NSA.

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Daisy Ridley, Tom Holland are hunted on distant planet in Chaos Walking trailer

Director Doug Limon adapted the film from a popular sci-fi trilogy by Patrick Ness.

Tom Holland and Daisy Ridley star in Chaos Walking, a film adaptation of the award-wining trilogy by Patrick Ness.

A young man and woman on a distant planet called the New World find themselves on the run from a town of religious fanatics in Chaos Walking, a forthcoming film directed by Doug Limon and based on the award-winning sci-fi trilogy of the same name by Patrick Ness. And the film boasts two megastars: Daisy Ridley, who plays Rey in the most recent Star Wars trilogy, and Tom Holland, the latest incarnation of Spider-Man in the MCEU.

The series consists of three novels—The Knife of Letting Go, The Ask and the Answer, and Monsters of Men—as well as three short stories set in the same fictional universe, intended as companion pieces to the novels. The series takes place on a planet called New World, where we meet Todd, a boy living in a religiously devoted settlement known as Prentisstown, led by the megalomaniac mayor, David Prentiss. There are no women left, and all the men are afflicted by something called the "Noise," which makes their thoughts audible, driving many of them mad. The same is true for Todd's little dog, Manchee. This is purportedly the result of biological warfare on the part of a native intelligent species known as Spackle, who resented the arrival of the colonizers. The germ killed all the women and left the men with the Noise.

One day, Todd discovers a patch of silence (a "hole in the Noise") in a nearby swamp, and when he tells his adoptive parents about it, they insist he has to flee Prentisstown. Back in the swamp, Todd comes face to face with Viola, a young girl who has crash-landed on New World in a small scouting craft, ahead of an incoming ship of new planetary settlers. They are relentlessly pursued by the Mayor, his son Davy, and an evil preacher named Aaron as they seek refuge with other, more peaceful settlements—including a town called Haven that is rumored to have a cure for the Noise—in hopes of finding a way to warn the incoming ship of the potential violence they face.

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A luxury crossover with a mainstream price? The 2021 Toyota Venza

The hybrid crossover is comfortable, efficient, and starts at just $32,470.

After dragging my better half to a lot of car races over the years, it was an easy yes when she asked if we might visit the Baseball Hall of Fame a few weeks ago. She is as big a fan of baseball as I am of motor racing, and her beloved Washington Nationals were being celebrated for having won the World Series, after all. Sure Cooperstown, New York, does indeed lie nearly 6.5 hours north-northeast from where I write this. But I quite like driving, and a 13-hour round trip is a better way than most to get to know a car.

But which car? As luck would have it, my calendar was double-booked that week. In the red corner, a 2021 Porsche 718 Boxster GTS with a revvy 4.0L naturally aspirated engine, manual transmission, and fixed carbon fiber bucket seats. In the pearl-white corner, a 2021 Toyota Venza with cooled and heated seats, adaptive cruise control, and a hybrid powertrain capable of a combined 39mpg (6l/100km). You'll be able to read about how addictive that Porsche was in the near future, but obviously it was the wrong tool for this particular job.

So after checking with the nice people at Toyota to make sure they were OK with me adding 750 miles (1,207km) to their new crossover—they were—the day booked off work, and with all the forms filled in to satisfy New York's public health people, we were all set.

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