Device passively registers temperature, switches from heating to cooling

When it gets too hot, it unrolls a reflective material to block absorption of light.

The shape-changing material in the process of unrolling in response to a change in temperature.

Enlarge / The shape-changing material in the process of unrolling in response to a change in temperature. (credit: Zhang et. al.)

Recent heatwaves have struck areas like Northern Europe and the Pacific Northwest that have traditionally gotten by without much air conditioning. As people in those regions adjust to the new reality, we'll likely see a change in electricity use, with surges in demand typical of locales further to the south. The strain those changes place on the grid can add to the challenge of rapidly moving away from fossil fuels.

Materials that passively heat or cool an environment can cut down on the demand for energy by handling some of these needs without requiring the use of energy. Some of these materials reflect incoming sunlight to keep it from heating a space, while others actively radiate heat away into space, which is great if you're only worried about heat. But many of these areas experience seasons and have times where getting rid of stray heat will also boost energy use.

Now, a team of researchers at Nankai University has figured out a way to have it all: warming in cold air and cooling once things get hot—all without needing any energy input.

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Lilbits: Steam Deck’s evolutionary history, Windows Terminal themes, and 80 Gbps Thunderbolt connections

Valve’s Steam Deck is a handheld gaming PC with a custom AMD processor featuring RDNA 2 graphics and a 7 inch touchscreen display sandwiched between game controllers and touchpads. But before the specs and design were finalized, Valve built a lo…

Valve’s Steam Deck is a handheld gaming PC with a custom AMD processor featuring RDNA 2 graphics and a 7 inch touchscreen display sandwiched between game controllers and touchpads. But before the specs and design were finalized, Valve built a lot of different prototypes. And the company showed them off as part of a launch […]

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Twitter shareholders approve the $44B merger Musk is trying to get out of

Musk wants out, but shareholders approve $54.20-per-share purchase agreement.

Closeup shot of a Twitter logo seen displayed on a smartphone screen.

Enlarge (credit: Getty Images | NurPhoto )

Twitter shareholders voted to approve Elon Musk's purchase of the company, weeks ahead of a trial over Musk's attempt to exit the merger deal. Though a specific vote tally wasn't available today, multiple news reports said investors backed the Twitter board's recommendation to approve the $44 billion deal that Musk agreed to in April before changing his mind.

"A majority of Twitter shareholders voted in favor of accepting Musk's $54.20-a-share offer to acquire the social-networking company, according to a preliminary vote count read on Tuesday," Bloomberg wrote.

Today's shareholder vote was the last remaining approval Twitter needed for the Musk deal, but the bigger question is what will happen at the upcoming trial at Delaware Court of Chancery. Twitter sued Musk to force him to complete the deal, and a trial is scheduled to begin on October 17.

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Khadas Edge2 launches single-board PC with RK3588S processor and up to 16GB RAM

As expected, single-board computer maker Khadas is updating its Edge line of compact computer modules. The new Khadas Edge2 is a 3.2″ x 2.3″ x 0.2″ computer computer featuring a Rockchip RK3588S processor, up to 16GB of RAM and up to…

As expected, single-board computer maker Khadas is updating its Edge line of compact computer modules. The new Khadas Edge2 is a 3.2″ x 2.3″ x 0.2″ computer computer featuring a Rockchip RK3588S processor, up to 16GB of RAM and up to 64GB of storage. First reveled this summer, the Khadas Edge2 will ship in December and it’s […]

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Adobe Thinks it Can Solve Netflix’s Password ‘Piracy’ Problem

As Netflix and similar legal streaming services come under pressure to maximize profits, ‘password piracy’ looks set to become a recurring news event in the months and years to come. Adobe believes that business opportunities exist and is offering its services. Tools include carrots and sticks, supported by intense monitoring of customer behavior.

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

netflix logoWhen online file-sharing hit the mainstream, entertainment company bosses tore out their hair in frustration.

They knew their products, ran tight businesses, and had the best possible grasp on the intricacies of their respective markets. Competing with ‘free’ was clearly impossible.

Today we know that by looking beyond the bare content, such as a music track or a movie, added value can be found in how content is presented, delivered, consumed, and ultimately appreciated by the customer. Legal content on its own may have problems competing with free, but as part of a premium content consumption experience, it’s not an absolute requirement.

Netflix – Changing Attitudes

When Netflix was ‘just’ a delivery platform, its pragmatic approach to the piracy problem was well known. But as Mike Tyson famously said, everyone has a plan until they get punched in the mouth. As Netflix burned through huge sums making its own content, its ‘exclusives’ rose up the piracy charts as quickly as Hollywood’s. People don’t pirate platforms, but they love pirating content.

Netflix decided to join the MPA and by extension anti-piracy coalition ACE, adopting anti-piracy attitudes more or less aligned with those of the major studios. But Netflix has a legacy problem to solve, one that precariously spans paying customers and freeloaders, with implications for growth.

‘Password Sharing’ was once a strategically ignored activity that helped to foster good customer relations while introducing friends and families to legal streaming. After being subjected to a cynical rebranding campaign by its detractors, password sharing is now all but dead, replaced by its boogeyman brother – Password Piracy.

Netflix doesn’t use the term publicly but there is no doubt that the company wants to eliminate the phenomenon from its platform. How that can be achieved without damaging customer relations is a billion-dollar question. Adobe thinks it has the answer.

Big Problems Need Comprehensive Solutions

Adobe prefers the term ‘credential sharing’ to ‘password piracy’ but doesn’t downplay its implications. Citing a 2020 study, Adobe says that up to 46 million people in the U.S. could be accessing streaming services with credentials that aren’t theirs while paying nothing for the privilege.

Citing potential losses of $9bn per year – three times those of rival Disney+ – Adobe says Netflix suffers most from credential sharing. The company believes that if streaming video is to avoid the fate of streaming music where free content is expected, action is needed sooner rather than later. But it needs to be executed with care.

Existing Options Can Frustrate The Wrong People

Efforts to reduce password sharing can include repeatedly requesting login information, strictly enforcing device limits (including deactivations/reactivations), aggressively enforcing concurrent connection limits, and multi-factor authentication. While these mechanisms are meant to deter password sharing, they irritate everyone – even the person who pays the bill.

Adobe believes that since every user is different, any actions taken against an account should form part of a data-driven strategy designed to “measure, manage and monetize” password sharing. The company’s vision is for platforms like Netflix to deploy machine learning models to extract behavioral patterns associated with an account, to determine how the account is being used.

These insights can determine which measures should be taken against an account, and how success or otherwise can be determined by monitoring an account in the following weeks or months.

Ignoring the obviously creepy factors for a moment, Adobe’s approach does seem more sophisticated, even if the accompanying slide gives off a file-sharing-style ‘graduated response’ vibe.

Adobe-Netflix-1

That leads to the question of how much customer information Adobe would need to ensure that the right accounts are targeted, with the right actions, at the right time.

Account IQ – Sophisticated Machine Learning

Adobe’s Account IQ is powered by Adobe Sensei, which in turn acts as the intelligence layer for Adobe Experience Platform.

In theory, Adobe will know more about a streaming account than those using it, so the company should be able to predict the most effective course of action to reduce password sharing and/or monetize it, without annoying the account holder.

Adobe-Netflix-2

But of course, if you’re monitoring customer accounts in such close detail, grabbing all available information is the obvious next step. Adobe envisions collecting data on how many devices are in use, how many individuals are active, and geographical locations – including distinct locations and span.

This will then lead to a ‘sharing probability’ conclusion, along with a usage pattern classification that should identify travelers, commuters, close family and friends, even the existence of a second home.

Time to Take Action

Given that excessive sharing is likely to concern platforms like Netflix, Adobe’s plan envisions a period of mass account monitoring followed by an on-screen “Excessive Sharing” warning in its dashboard.

From there, legal streaming services can identify the accounts most responsible and begin preparing their ‘graduated response’ towards changing behaviors. After monetizing those who can be monetized, those who refuse to pay can be identified and dumped.

Or as Adobe puts it: “Return free-loaders to available market”.

Adobe-Netflix-3

Finally, Adobe also suggests that its system can be used to identify customers who display good behavior. These users can be rewarded by eliminating authentication requirements, concurrent stream limits, and device registrations. As an added bonus, all good users can be given a hefty 50% subscription discount.

The discount part is admittedly a poor attempt at sarcasm on my part, but the rest of the paragraph is entirely genuine.

It appears to suggest that customers who use their accounts as agreed, will be able to do so in peace. On top they will be rewarded with a whole bunch of new freedoms to enjoy, specifically those that could propel them directly to the ‘password piracy’ naughty step and associated corrective measures.

Having said all that, please relax and have fun watching the movie. Any aggressive monitoring is for the greater good (of streaming platforms) and to ensure that customers get exactly what they paid for – not a fraction more.

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

Who said sedans were dead? The 2023 Genesis G80 Electrified, tested

With up to 3.9 miles/kWh, vehicle-to-load, and very fast charging, there’s a lot to like.

A white Genesis G80 Electrified seen from ahead, next to a small black cabin

Enlarge / The Genesis G80 is a fine midsized luxury sedan, and now there's a fully battery electric variant. (credit: Jonathan Gitlin)

Recently Ars tested the new Genesis GV60, a sharp little electric crossover. Although that car was Genesis' first EV to use the brand-new E-GMP platform, it's technically the brand's second EV. That's because there's also a fully battery-electric version of the Genesis G80 sedan. Called the G80 Electrified, it was first shown in Shanghai last year but has now arrived on these shores.

The company introduced the internal combustion engine-powered G80 in 2020, and it's a competent take on the midsize luxury sedan. But the platform (known internally as M3) was designed to support both combustion and electric powertrains—few automakers today can afford the expense of engineering an entirely new ICE-only architecture given impending regulations around the world.

As you might expect, the G80 Electrified shares a lot of the same EV technology as the GV60, which impressed us. It's a bigger, more expensive car—$79,825 plus destination fees—but manages to be even more efficient and luxurious in the process.

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Daily Deals (9-13-2022)

The Bose QuietComfort 45 wireless over-ear, noise-cancelling headphones have a list price of $329, but today Bose is selling them for $80 off. You can also save an extra $20 if you opt for a refurbished pair that has the same warranty as a new set of …

The Bose QuietComfort 45 wireless over-ear, noise-cancelling headphones have a list price of $329, but today Bose is selling them for $80 off. You can also save an extra $20 if you opt for a refurbished pair that has the same warranty as a new set of Bose headphones. Looking for something cheaper? Amazon is […]

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Google spinoff Aalyria salvages Project Loon technology for the US military

Loon’s laser communications and networking software get new life as Aalyria.

Aalyria's vision of a connected Earth, though SpaceX's Starlink network basically already looks like this.

Enlarge / Aalyria's vision of a connected Earth, though SpaceX's Starlink network basically already looks like this. (credit: Aalyria)

A pair of reports from CNBC and Bloomberg are detailing a new Google connectivity spinoff called "Aalyria." The new company sounds like it's taking the canceled Project Loon technology, packaging it up under a new brand name, and spinning it out from Alphabet as an independent company, where it will hopefully survive in the wilderness. The company is apparently going public today, complete with a spiffy new website.

Project Loon was a Google/Alphabet company for eight years and wanted to provide Internet for low-connectivity areas with flying cell towers suspended overhead by weather balloons. It's sort of the same idea as a low Earth orbit satellite, but rather than a satellite in space, these balloons were only 20 km in the air. Besides needing to constantly navigate the varying atmospheric airways, Loon balloons have to be continually recovered and relaunched to maintain a steady stream of overhead balloons. Besides being a reference to the big weather balloons, the name "Loon" was chosen as a nod to how infeasible the idea sounds. Eventually that infeasibility proved to mostly just be a money problem, and Google shut down Loon in 2021, saying it wasn't a "long-term, sustainable business."

The CNBC report paints the spinoff as yet another consequence of Google CEO Sundar Pichai's plan to cut costs at Google. Pichai said in August that "productivity as a whole is not where it needs to be" and that the company would be "consolidating where investments overlap and streamlining processes." CNBC says that the push for cost-cutting means Google is looking to "advance or wind down experimental projects." Some Alphabet companies, like Waymo, have taken external funding to stay afloat.

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What If? 2 is here with even more serious answers to your weird questions

Ars chats with xkcd creator Randall Munroe about his new book, What If? 2.

From swing-set physics to riding a fire pole from the Earth to the Moon, Randall Munroe has got you covered.

Enlarge / From swing-set physics to riding a fire pole from the Earth to the Moon, Randall Munroe has got you covered. (credit: Randall Munroe / Ars Technica)

Forget debating the airspeed velocity of an unladen African versus a European swallow. How many pigeons would it take to lift a person seated in a launch chair to the top of the Q1 skyscraper in Australia? Answer: You could probably manage this with a few tens of thousands of pigeons, as long as they don't get spooked by a passing falcon or distracted by someone with a bag of seeds. That's just one of many fascinating (and amusing) tidbits to be gleaned from What If? 2, the latest book from cartoonist and author Randall Munroe and the sequel to 2014's bestselling What If?

Regular Ars readers likely need no introduction to Munroe, or his hugely successful and influential webcomic xkcd. But we'll give you a brief rundown anyway. Munroe has a degree in physics and worked for NASA's Langley Research Center as a contract programmer and roboticist. As a student, he often drew charts and maps and "stick figure battles" in notebook margins and decided to scan them and post them to his personal website in 2005. The webcomic got its own website in 2006, when Munroe left NASA to write xkcd full time.

It didn't take long for xkcd, with its distinctive stick figures, to become a daily staple for scientists, engineers, and online nerds in general. There's nothing quite like them. Longtime fans know all about the tooltip with the hidden secondary punchline for each cartoon and Munroe's obsession with possible velociraptor attacks. They spent hours with 2012's "Click and Drag" and eagerly followed the four-month-long journey of time-lapsed frames that comprised the experimental "Time," which won the 2014 Hugo Award for Best Graphic Story.

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To defeat FTC lawsuit, Meta demands 100+ rivals share biggest trade secrets

Snap claims Meta wants “to reconstruct virtually every decision Snap has made.”

To defeat FTC lawsuit, Meta demands 100+ rivals share biggest trade secrets

Enlarge (credit: Michael Haegele | The Image Bank)

Several years after Facebook-owner Meta acquired WhatsApp and Instagram, the Federal Trade Commission launched an antitrust lawsuit that claimed that through these acquisitions, Meta had become a monopoly. A titan wielding enormous fortune over smaller companies, the FTC said Meta began buying or burying competitors in efforts that allegedly blocked rivals from offering better-quality products to consumers. In this outsize role, Meta stopped evolving consumer preferences for features like greater privacy options and stronger data protection from becoming the norm, the FTC claimed. The only solution the FTC could see? Ask a federal court to help them break up Meta and undo the damage the FTC did not foresee when it approved Meta’s acquisitions initially.

To investigate whether Meta truly possesses monopoly power, both Meta and the FTC have subpoenaed more than 100 Meta competitors each. Both hope to clearly define in court how much Meta dominates the market and just how negatively that impacts its competitors.

Through 132 subpoenas so far, Meta is on a mission to defend itself, claiming it needs to gather confidential trade secrets from its biggest competitors—not to leverage such knowledge and increase its market share, but to demonstrate in court that other companies are able to compete with Meta. According to court documents, Meta’s so hungry for this background on its competitors, it says it plans to subpoena more than 100 additional rivals, if needed, to overcome the FTC’s claims.

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