Some FDM filaments are pretty brittle even if properly dried and stored, especially those which contain carbon fiber (CF) or similar additives like glass fiber (GF). This poses a problem in that these filaments can snap even within the PTFE tube as they’re being guided towards the extruder. Here a community theory is that having an actively heated chamber can help prevent this scenario, but is it actually true? [Dr. Igor Gaspar] of the My Tech Fun YouTube channel gave this myth a try to either confirm or bust it.
The comments suggested that heating the chamber to 65°C will help, but there’s little information online to support this theorem. To test the claim, a heated chamber was used along with a bending rig to see at which angle the filament would snap. In total five different filaments from three manufacturers (Polymaker, Qidi and YXPolyer) were tested, including Qidi’s PET-GF and PAHT-GF as the sole non-CF filaments.
A big question is how long exactly the filament will spend inside the heated chamber after making its way from the spool, which would be about 2.5 minutes with a 500 mm tube. For the test 5 minutes was used for the best possible result. Despite this, the results show that even with the standard deviation kept in mind, the heating actually seems to make the filaments even more brittle.
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Considering that in general CF seems to simply weaken the polymer matrix after printing, this finding adds to the question of whether these CF and GF-infused filaments make any sense at all.
Looking for the most recent Connections answers? Click here for today’s Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections: Sports Edition and Strands puzzles.
Today’s NYT Connections puzzle is pretty tricky, but musicians might find the blue group easy. Read on for clues and today’s Connections answers.
The Times has a Connections Bot, like the one for Wordle. Go there after you play to receive a numeric score and to have the program analyze your answers. Players who are registered with the Times Games section can now nerd out by following their progress, including the number of puzzles completed, win rate, number of times they nabbed a perfect score and their win streak.
Here are four hints for the groupings in today’s Connections puzzle, ranked from the easiest yellow group to the tough (and sometimes bizarre) purple group.
Yellow group hint: Time between two things, maybe.
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Green group hint: That smarts!
Blue group hint: Rockers know these well.
Purple group hint: You might write one out to pay a bill.
Sugar has more power than most people realize, as Chase at Crystalverse demonstrates just how far a single bag from the grocery store can go when used correctly. What begins as regular grains becomes a single brilliant crystal large enough to hold in your palm and appreciate from all sides.
Chase set out to solve the common problem with sugar crystals, which tend to clump into messy groups instead of making a single clear piece. His method is based on coarse sugar throughout and a cautious seed stage that requires several attempts before success. The experiment takes approximately a week, but each stage builds on the previous one in such a way that you’ll want to check in on it every day.
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Gather the ingredients first, as coarse sugar is ideal for both the solution and the beginning seeds. Water, a digital scale, an electric burner or stove, a 600-milliliter beaker or other heat-safe container, 0.14-millimeter-thick clear nylon fishing line, precision tweezers, a small plastic petri dish measuring 90 by 15 millimeters, a few pipettes, and one large jar with a lid or plastic wrap for covering. Nothing special appears on the list, making the entire setup seem quite manageable.
Start by bringing 100 milliliters of water to a gentle heat for each batch you plan to make, then stir in 225 grams of coarse sugar until every last grain has dissolved and the liquid runs completely clear. What you end up with is a supersaturated solution, essentially water that is holding far more sugar than it normally would at room temperature. Take it off the heat straight away to avoid any burning or discoloration, then cover it and leave it to cool slowly so a crust doesn’t form on the surface. Make enough to fill both the small dish you will use for the seed crystals and the larger jar where the main growth will happen.
Once the solution is ready, proceed to the seed stage. Pour a shallow layer of cooled syrup into the petri dish. Sprinkle a few coarse sugar grains across the surface. Cut a length of fishing line and lower one end into the liquid, making sure it touches the bottom rather than floating free. Secure the top end, perhaps by taping it to a stick set across the dish. Set aside the dish in a quiet area away from fans and drafts.
Check the dish the following morning and you should find small crystals forming around the line and along the bottom. Often a whole cluster attaches itself to the line, which can work for chunkier results but won’t give you a true single crystal. Carefully lift the line out with tweezers and take a close look. If things look crowded or messy, rinse the line off, mix up a fresh batch of syrup, and start the dish again. Keep repeating until you have one or two clean crystals sitting firmly on the line with nothing else crowding around them. It takes a little patience, but getting this part right is what separates a proper single crystal from a rough chunk of rock candy.
Once you have the successful seed, transfer it to the large jar and fill it with the remaining cooled syrup. Tie the fishing line to a pencil or stick set across the jar’s opening, allowing the seed crystal to hang freely in the liquid without contacting the sides or bottom. Cover the jar loosely with plastic wrap or a cover to reduce evaporation while allowing slow changes inside. Place the arrangement in a stable, shaded location with consistent temperature and few disruptions.
Seven days later, the result is ready, as you can simply lift the line out and let the extra liquid drip off. Dry the crystal with a paper towel. What you grasp now is significantly greater than any single grain from the original bag, demonstrating the geometric structure that sugar naturally generates. The item is edible but dissolves easily in water or humid air, so keep it in a dry place if you want it to stay intact. [Source>]
The Department of Defense said giving Anthropic continued access to its warfighting infrastructure would “introduce unacceptable risk” to its supply chains in a court filing submitted in response to the AI company’s lawsuit. If you’ll recall, Anthropic sued the government to challenge the supply chain risk designation it received for refusing to allow its model to be used for mass surveillance and the development of autonomous weapons.
In its filing, the department explained that its secretary, Pete Hegseth, had a provision incorporated into AI service contracts, allowing the agency to use their technologies for any lawful purpose. Anthropic refused its terms and apparently, the company’s behavior caused the Pentagon to question whether it truly was a “trusted partner” that it could work with when it comes to “highly sensitive” initiatives. “After all, AI systems are acutely vulnerable to manipulation, and Anthropic could attempt to disable its technology or preemptively alter the behavior of its model either before or during ongoing warfighting operations, if Anthropic — in its discretion — feels that its corporate “red lines” are being crossed,” the Pentagon wrote in its filing. “DoW deemed that an unacceptable risk to national security,” it added, referring to the agency as the Department of War, which is the Trump administration’s preferred name for it.
It was due to those concerns that President Trump ordered federal agencies to stop using its technology, the filing reads. The company is asking the court to issue a preliminary injunction and put a pause on a ban while it’s challenging its supply chain risk designation in court. While Anthropic’s clients could continue working with the company on non-defense-related projects, it says the label could cause it to lose billions of dollars in revenue. It’s not quite clear if Anthropic is still trying to reach a new deal with the government, as was reported before it filed its lawsuit. As The New York Times notes, Microsoft, Google and OpenAI had filed friend-of-the-court briefs in support of Anthropic since then.
Google is rolling out a fresh update for the Google Home app that makes Gemini a lot more useful in day-to-day use, while also addressing several small but frustrating issues that have been holding it back.
What’s new with Gemini for Home?
One of the biggest upgrades with this update is speed. Google says common smart home commands like turning lights on or off can now be up to 40 percent faster. That should make a noticeable difference for those who rely on voice controls throughout the day. Gemini’s Live Translation feature is also quicker and more responsive, and now supports Canadian French, taking the total number of supported languages to 30.
Google
The update also focuses heavily on making responses less chatty. Instead of long confirmations, Gemini now keeps things short and direct. So a command like setting an alarm gets a simple “Alarm set for 9 AM” instead of a full sentence. It is a small change, but one that should make interactions feel smoother.
What else is changing with the latest update?
On the features front, Gemini is getting smarter with alarms and timers. Users can now set them based on real-world events, manage multiple actions in one go, and even ask about the original timer duration. Recurring alarms and proper snooze controls have also been fixed, addressing one of the main annoyances users had with Gemini for Home.
There are improvements beyond voice, too. Google is expanding Gemini for Home to more countries and introducing new automation options in the Google Home app. These include triggers tied to appliances like ovens and new lighting effects such as wake and sleep modes.
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Individually, these updates are minor, but together they should make Gemini feel faster, more responsive, and much more reliable than before. The new release follows an update from earlier this month that also brought performance improvements and bug fixes for Gemini’s smart home voice controls.
The streaming wars never slow down. They just find new ways to charge admission.
Starting April 10, 2026, Amazon will rename its existing Prime Video Ad Free tier as Prime Video Ultra, priced at $4.99 per month in the United States. The new tier adds several upgrades that Amazon clearly hopes will justify the new branding and the monthly fee: up to five concurrent streams instead of three, as many as 100 downloads instead of 25, and exclusive access to 4K and UHD streaming.
Amazon frames the change as a necessary step to support the cost of premium streaming. According to the company, delivering ad free video with higher-end features requires significant investment, and the new structure brings Prime Video more in line with the pricing models used by other major streaming services. In other words, welcome to the club.
For Prime members, the baseline Prime Video benefit remains intact. Subscribers will still receive HD and HDR streaming as part of the standard Prime membership, and Amazon says Dolby Vision support will now be included at no additional cost. The new Ultra tier simply stacks additional perks on top of the existing service for viewers who want more streams, more downloads, and access to the highest video resolution.
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All of this arrives against a particularly chaotic backdrop in the streaming business. The recent bidding war involving Netflix and Paramount over the future of Warner Bros Discovery, CNN, and HBO MAX has already reshaped the landscape, with the Ellisons emerging victorious and the industry bracing for the fallout. One thing seems certain as the dust settles: none of these services are getting cheaper.
Amazon may have deeper pockets than most of its competitors, but it is not immune to the math. Producing blockbuster series and films at scale costs real money, and those glossy originals are not paying for themselves. Renaming the ad free tier Prime Video Ultra may sound like a cosmetic change, but the message behind it is clearer than ever.
The era of cheap streaming is over. The meter is running.
Amazon’s new Prime Video Ultra tier doesn’t replace the core Prime Video benefit included with a Prime membership. Instead, it layers premium streaming features on top of the existing service for viewers who want ad free playback, higher video resolution, and more flexibility for downloads and concurrent streams.
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The chart below breaks down what stays included with Prime and what the new $4.99 per month Ultra tier adds starting April 10, 2026.
Feature / Option
Prime Video Benefit (Included with Prime Membership)
Prime Video Ultra Subscription
Content Library
Thousands of premium movies, TV series, and live sports including NFL, NBA, NASCAR, and The Masters
$4.99 per month starting April 10. Prime or Prime Video subscription required. Annual option $45.99 per year (about 23% savings vs monthly).
Access to Prime Originals, Movies, and Live Sports
Whether you stick with the Prime Video benefit included with a Prime membership or upgrade to Prime Video Ultra, the underlying content library does not change. Both options provide access to Amazon’s full catalog of Amazon MGM Studios originals, licensed films and series, and exclusive live sports programming.
That lineup includes popular Prime Original series such as Fallout, Reacher, The Boys, The Lord of the Rings: The Rings of Power, and The Summer I Turned Pretty. Amazon’s growing slate of original films is also included, with titles such as Heads of State, Red One, Road House, and The Accountant 2.
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Live sports remain a major draw for the platform as well. Prime Video carries exclusive coverage and events tied to the NFL, NBA, WNBA, NASCAR, NWSL, and The Masters, alongside additional licensed programming and films.
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In other words, Prime Video Ultra does not unlock additional content. The catalog remains the same. What the Ultra tier adds are premium viewing features such as ad free playback, higher video resolution, Dolby Atmos surround sound, and expanded streaming and download limits.
The Fine Print: What Prime Video Ultra Still Won’t Do
Before anyone assumes Prime Video Ultra is a magic “no ads, everything in 4K, watch it anywhere forever” button, there are a few realities worth noting.
First, Prime Video Ultra is currently limited to customers in the United States. If you’re outside the U.S., the “Ultra” experience will have to wait.
Second, ad free does not mean ad free everywhere. Live programming such as sports broadcasts, certain licensed content, and third party channel subscriptions may still contain advertising. That’s the nature of live television and licensing deals. Amazon can remove ads from its own playback environment, but it can’t rewrite every contract in the sports world.
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Third, the improved download and concurrent stream limits apply to your entire account, not to each individual profile. So if five people in the household are streaming at once or loading devices with downloads before a trip, those limits are shared across everyone using the account. There may also be additional restrictions depending on the specific title, device, or content provider.
Finally, the premium tech perks come with the usual fine print. 4K UHD video, Dolby Vision, and Dolby Atmos are only available on supported titles and require compatible devices and enough internet bandwidth to actually deliver them. Not every movie or show in the catalog is available in every format.
The Bottom Line
Amazon’s Prime Video Ultra tier is less about new content and more about unlocking the premium viewing and audio experience. For $4.99 per month extra, subscribers get ad free playback, expanded streaming and download limits, and access to higher resolution 4K UHD video, along with Dolby Vision and Dolby Atmos surround sound.
Prime members who stick with the included Prime Video benefit will still get the same catalog of movies, series, and live sports, but without the highest resolution formats or ad free viewing. However, this tier does get Dolby Vision added, which wasn’t included before, at no extra charge.
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In the bigger picture, this move reflects where the streaming business is heading. As studios spend billions on original content and compete for sports rights, subscription tiers are becoming more segmented and more expensive. Prime Video Ultra is simply Amazon’s latest reminder that the era of cheap streaming is over.
Looking for the most recent Strands answer? Click here for our daily Strands hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections and Connections: Sports Edition puzzles.
Today’s NYT Strands puzzle is kind of bizarre. Even after I had found some of the answers, the theme didn’t click in my brain until I was almost done with the puzzle. And some of the answers are difficult to unscramble, so if you need hints and answers, read on.
If that doesn’t help you, here’s a clue: Not death…
Clue words to unlock in-game hints
Your goal is to find hidden words that fit the puzzle’s theme. If you’re stuck, find any words you can. Every time you find three words of four letters or more, Strands will reveal one of the theme words. These are the words I used to get those hints but any words of four or more letters that you find will work:
These are the answers that tie into the theme. The goal of the puzzle is to find them all, including the spangram, a theme word that reaches from one side of the puzzle to the other. When you have all of them (I originally thought there were always eight but learned that the number can vary), every letter on the board will be used. Here are the nonspangram answers:
COACH, HACK, BLOOD, CYCLE, STYLE, LESSON, PRESERVER. (All words that can follow the word “LIFE.”)
Today’s Strands spangram
The completed NYT Strands puzzle for March 18, 2026.
NYT/Screenshot by CNET
Today’s Strands spangram is AFTERLIFE. To find it, start with the A that is the furthest-left letter on the top row, and wind down.
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Toughest Strands puzzles
Here are some of the Strands topics I’ve found to be the toughest.
#1: Dated slang. Maybe you didn’t even use this lingo when it was cool. Toughest word: PHAT.
#2: Thar she blows! I guess marine biologists might ace this one. Toughest word: BALEEN or RIGHT.
#3: Off the hook. Again, it helps to know a lot about sea creatures. Sorry, Charlie. Toughest word: BIGEYE or SKIPJACK.
Today it’s widely acknowledged that the future of computing will involve the quantum realm. Companies like Google, Microsoft, IBM, and a few well-funded startups are frantically building quantum computers and routinely claiming advances that seem to bring this exotic, world-changing technology within reach. In 1979 all of this was unthinkable. But that summer, two scientists met in the Atlantic Ocean off the coast of Puerto Rico, and their aquatic conversation led to a body of work that created quantum information theory. In a larger sense, their contributions helped bring computer science into the quantum age.
Those water-logged scientists, Charles Bennett and Gilles Brassard, are now the latest recipients of the ACM A.M. Turing Award, the Nobel Prize of the field.
Until that 1979 meeting, there had been a disconnect between information science and physics. The latter field had experienced a disruption in the early 20th century when physicists discovered quantum mechanics, a deeper explanation of how the universe operated that superseded the classical physics of Issac Newton. Computer science, however, didn’t account for the quantum world, except for having to deal with its effects on tiny chips, where the behavior of electrons were relevant.
“In the 1950s through the 1980s people thought of quantum effects as occurring in very small things and as a source of noise—you had to understand quantum theory to build transistors,” explains Bennett. “People thought of quantum mechanics as a nuisance.” He and Broussard discovered methods—like quantum coin-tossing and quantum entanglement—that turned the perceived handicaps of quantum reality into a powerful tool.
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At the time of their meeting, Bennett was at a career crossroads; he’d joined IBM in 1973, but had taken a years-long break from academic publishing. One source of continuing fascination was an idea shared by a college classmate, Steven Weisner—that using a quantum form of cryptography could enable digital money that could not be counterfeited. (Yep, Weisner envisioned cryptocurrency in the late 1960s!) At the 1979 conference, Bennett saw that a cryptographer named Brassard was in attendance—he had just completed a dissertation on public-key crypto—and located him offshore.
“So there I was swimming in the beach when a complete stranger came up to me and started telling me that a friend of his found that we can use quantum mechanics to make affordable banking notes out of nowhere,” Broussard tells me. “If I had been on firm ground, I would have run for my life, but I was trapped in the ocean, so I listened politely.” Though Brassard had no previous interest in physics, he was intrigued by the approach, and the pair eventually published a theory called BB84, essentially creating an alternative to classic public-key cryptography based on what would become quantum information theory. Suddenly, the world of the quantum became a source of solutions—if scientists could invent the mechanisms to make it happen. As Yannis Ioannidis—president of ACM, which bestows the Turing Award—put it in a statement, “Bennett and Brassard fundamentally changed our understanding of information itself.”
Both scientists take pains to say that their original work did not lead directly to the current scramble to build quantum computers. Bennett notes that in a 1981 conference at MIT, legendary physicist Richard Feynman “made the point that, since nature is quantum, probably some computational jobs would need to be done by a quantum computer.” He also credits physicist David Deutsch for key ideas about quantum computers. Bennett and Brassard became part of that effort.
“Quantum computing was invented independently from us, but then we jumped in,” says Brassard. “I was the first person to design a quantum circuit to do quantum teleportation.” Brassard and Bennett’s work on teleportation, while still in an experimental stage, is now part of the quantum lore. Brassard has said that “one day, it will fuel the quantum internet.”
MSI plans to increase the price of its PC products by 15 – 30%, company general manager Huang Jinqing recently said. Speaking with investors, Jinqing confirmed that the entire hardware industry is facing unprecedented market conditions. Memory manufacturers have almost entirely shifted their priorities, allocating the majority of their production… Read Entire Article Source link
AI agents independently discovered vulnerabilities and exploited them while performing routine tasks
Multi-agent systems collaborated to bypass data-loss prevention and steal sensitive credentials
Backup server AI escalated privileges to disable endpoint protection and complete downloads
Routine tasks assigned to artificial intelligence agents can sometimes escalate into actions resembling cyberattacks, experts have warned.
Security laboratory Irregular examined how autonomous agents behaved inside a simulated corporate environment while performing ordinary assignments.
During several runs, the AI agents searched for vulnerabilities, escalated privileges, disabled security protections, and moved sensitive information outside internal systems.
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Emergent offensive behavior during routine tasks
These actions occurred while the agents attempted to complete tasks such as retrieving documents, downloading files, or preparing content for publication.
The simulated network represented a fictional company called MegaCorp and included internal servers, applications, and services commonly found inside enterprise infrastructure.
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Within this environment, agents handled routine duties that many organizations already automate.
These duties included researching information on an internal wiki, maintaining backup archives on a server, and drafting social media posts using technical documents.
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According to the researchers, the instructions given to the agents did not mention hacking or exploitation.
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“AI agents deployed for routine enterprise tasks are autonomously hacking the systems they operate in. No one asked it to. No adversarial prompting was involved,” Irregular said in a blog post.
“The agents independently discovered vulnerabilities, escalated privileges, disabled security tools, and exfiltrated data, all while trying to complete ordinary assignments.”
One scenario involved a multi-agent research system retrieving documents from a company wiki.
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When access restrictions blocked a request, the system examined the application’s code repository and discovered a hardcoded secret key.
The agent used that key to forge an administrative session cookie and retrieved a restricted document.
Another test involved a backup server agent responsible for downloading files to a storage directory.
When Windows Defender blocked a file that contained malware, the agent searched local scripts and discovered administrator credentials embedded inside a utility file.
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It then elevated its privileges and disabled endpoint protection so the download could proceed.
A separate experiment showed agents collaborating to bypass a data loss prevention system.
Two agents responsible for drafting social media content were asked to include credentials from a technical document.
When the system blocked the message, the agents developed a steganographic method that concealed the password within the text.
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According to researchers, several factors contributed to this behavior, including access to tools such as code execution and shell commands, and many prompts encouraged persistence when tasks encountered errors.
Interactions between multiple agents also created feedback loops that pushed them toward workarounds when obstacles appeared.
The researchers argue that existing cybersecurity defenses were designed to stop human attackers rather than autonomous systems operating inside enterprise networks.
Organizations deploying such agents should not underestimate how quickly routine automation can drift toward behavior resembling internal cyber intrusion.
‘This year is the most challenging year since the company was founded’: MSI exec makes it clear how bad the RAM crisis has got, despite some prices plateauing
The dose of pessimism comes from MSI, which is going to jack up the prices of its ‘gaming products’ in the order of 15% to 30% this year. This is according to general manager Huang Jinqing on a recent earnings call, as per a report from Taiwan’s United Daily News (via Tom’s Hardware).
The increases are driven by the RAM shortage, and also problems with GPU supply from Nvidia — we’re told there’s a 20% shortfall in securing stock of the latter.
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The result is that MSI will cut back on its low-end gaming laptops to the tune of 30%, so it can focus more on mid-range and higher-end PCs. The simple equation to keep revenue flowing is selling fewer devices at higher prices.
Huang said the PC industry is facing severe challenges, and that: “This year is the most challenging year since the company was founded” (text translated from Chinese).
On top of the shifting priorities with laptops, MSI is switching its motherboards to favor models supporting DDR4 memory. Whereas previously four times as many DDR5 motherboards were shipped versus DDR4, that situation has reversed completely, so the older standard is now coming off production lines in fourfold compared to the quantities of DDR5 boards. That’s quite a remarkable turnaround.
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Analysis: tough times despite some sparks of hope
(Image credit: Shutterstock / LightField Studios)
As noted at the outset, VideoCardz noticed another update from German tech site 3D Center, which keeps tabs on RAM pricing over in Germany, and observes that the price of DDR5 memory dropped by around 7% in March compared to February.
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So that sounds quite positive, and it echoes other observations from the European market last month, too. However, lest we get carried away, remember that DDR5 RAM is still quadruple what it cost compared to the price in September 2025, according to 3D Center’s price watching. It’s just that it has dropped back a little, after plateauing from January to February this year.
Obviously, it’s good to witness any kind of downward correction — or indeed just to see that RAM pricing isn’t going up — but there is, of course, a limit to how much prices will rise before most consumers throw their hands up in the air and (rightly) just refuse to buy. Unless they have absolutely no choice, that is.
However, to call 2026 the “most challenging year” is quite a statement, considering that the pandemic in 2020 was a very tough time for the market (and it isn’t the first time we’ve heard this sentiment in the tech industry this year).
Huang is predicting a 10% to 20% decline in PC sales this year, whereas analyst firms are pitching their estimations at a 10% drop for 2026. That’s the best-case scenario as far as MSI’s general manager is concerned, which is troubling to say the least, as is the fact that the budget end of the PC market is going to be hit hardest.
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