An anonymous reader quotes a report from Ars Technica: HP printers have received a lot of flak historically and recently for invasive firmware updates that end up preventing customers from using ink with their printers. HP also encourages printer customers to sign up for HP+, a program that includes a free ink-subscription trial and irremovable firmware that allows HP to brick the ink when it sees fit. Despite this, HP markets dozens of its printers with Dynamic Security and the optional HP+ feature as being in the Electronic Product Environmental Assessment Tool (EPEAT) registry, suggesting that these printers are built with the environment in mind and, more specifically, do not block third-party ink cartridges. Considering Dynamic Security and HP+ printers do exactly that, the International Imaging Technology Council (IITC) wants the General Electronics Council (GEC), which is in charge of the EPEAT registry, to revoke at least 101 HP printer models from the EPEAT registry, which HP has "made a mockery of."

For a printer to make the EPEAT registry, it's supposed to comply with the EPEAT Imaging Equipment Category Criteria, which is based on the 1680.2-2012 IEEE Standard for Environmental Assessment of Imaging Equipment (PDF). The IITC is hung up on section 4.9.2.1, which requires that registered products do not "prevent the use of nonmanufacturer cartridges and non-manufacturer containers" and that vendors provide documentation showing that the device isn't "designed to prevent the use of a non-manufacturer cartridge or non-manufacturer container." Well, as the IITC and consumers who found their inked bricked mid-print will tell you, that sounds an awful lot like what HP does with its Dynamic Security printers.

Diving deeper, the IITC's complaint claims that "in the last 8 weeks alone, HP has released 4 killer firmware updates targeting dozens of EPEAT-registered inkjet printers." "At least one of these recent updates specifically targeted a single producer of remanufactured cartridges while not having any impact on non-remanufactured third-party cartridges using functionally identical non-HP chips," the complaint reads. The trade group also claimed at least 26 "killer firmware updates" occurred on EPEAT-registered HP laser printers since October 2020. The complaint argues that the error message that users see -- "The indicated cartridges have been blocked by the printer firmware because they contain non-HP chips. This printer is intended to work only with new or reused cartridges that have a new or reused HP chip. Replace the indicated cartridges to continue printing" -- go against EPEAT requirements, yet HP markets dozens of Dynamic Security printers with EPEAT ecolabels. "The nonprofit trade association was founded in 2000 and says it represents 'toner and inkjet cartridge remanufacturers, component suppliers, and cartridge collectors in North America,'" notes Ars. "So its members stand to lose a lot of money from tactics like Dynamic Security. The IITC already filed a complaint to the GEC about HP in 2019 for firmware blocking non-HP ink, but there didn't seem to be any noticeable results."

"The group is biased regarding this topic, but its complaint still mirrors many problems and concerns that consumers and class-action lawsuits have detailed regarding HP printers' exclusive stance on ink. You can find the full complaint here."

Forty years ago, a young boy's review of "Return of the Jedi" on NPR's All Things Considered led to uproar from listeners, prompting an on-air apology from host Susan Stamberg for airing spoilers. NPR reports: This was part of the boy's review: "Han Solo and Luke Skywalker are about to go in the pit. And just as he was about to walk the plank, R2D2 fired a laser gun from his head, and Han catched it. And he blew up the whole ship. And the big guy -- the boss of the monsters -- well, he got choked and died." In fact, his review wasn't quite right. It was a lightsaber that R2D2 fired out, which Luke Skywalker caught.

At the time, though, these plot details really rankled NPR listeners. So much so that the next day Stamberg issued an on-air apology. Well, sort of. Here's what she said: "Well, the comic book was a goof, but we certainly goofed last night. We goofed so badly that we changed our program before rebroadcasting it to the West Coast, which means that you West Coast listeners won't know what I'm talking about. But enough of you on the East Coast called to complain that we want to apologize publicly to everybody. Calls -- there were more phone calls on this one than we ever got in the middle of the hottest Middle East disputes. Calls -- there were more phone calls than Richard Gere would get if he listed his number.

And all because last night on All Things Considered, we permitted a six-and-a-half-year-old boy to tell us everything -- and I mean everything -- about Return Of The Jedi. "You gave the plot away," you said. "I've been waiting for that movie for three years, and now you have ruined it for me. How could you do a thing like that?" Well, we are sorry. We're contrite, and we're fascinated. Usually you get angry when we get our facts wrong.

This time we got them right, and you got angry. It's the difference between fact and fiction, of course, and the power of fantasy in our lives -- the need for mystery, for wonderful stories that spill themselves out for us. Of course, if they are wonderful enough -- this may be an excuse, but I doubt it -- if they're wonderful enough, they will come to us new, even though we've seen them a hundred times. That's why people keep going back to see Romeo And Juliet over and over again or The Wizard Of Oz. We know how they end but find great pleasure and nourishment watching them proceed to that ending. Two years from now, that's how we'll feel about the Return Of The Jedi. For now, though, our apologies -- we will not do that again. But listen, I have just seen the new Superman III, and Superman and Lois Lane..."

After three years of upgrades, the gravitational-wave detector known as LIGO, or Laser Interferometer Gravitational-Wave Observatory, has resumed searching for colliding black holes and other cosmic cataclysms. "The improvements should allow the facility to pick up signals from colliding black holes every two to three days, compared with once a week or so during its previous run in 2019-20," reports Nature. From the report: The Virgo detector near Pisa, Italy, which has undergone its own $9-million upgrade, was meant to join in, but technical issues are forcing its team to extend its shutdown and perform further maintenance. "Our expectation is we'll be able to restart by the end of summer or early autumn," says Virgo spokesperson Gianluca Gemme, a physicist at Italy's National Institute for Nuclear Physics in Genoa.

KAGRA, a gravitational-wave detector located under Mount Ikenoyama, Japan, is also restarting on 24 May. Its technology, although more advanced -- it was inaugurated in 2020 -- is being fine-tuned, and its sensitivity is still lower than LIGO's was in 2015. Principal investigator Takaaki Kajita, a Nobel Prize-winning physicist at the University of Tokyo, says that KAGRA will join LIGO's run for a month and then shut down again for another period of commissioning. At that point, the team will cool the interferometer's four main mirrors to 20 kelvin, Kajita says -- a feature that sets KAGRA apart from the other detectors that will serve as the model for next-generation observatories.

In upgrades carried out before the 2019-20 run, LIGO and Virgo tackled some of this noise with a technique called light squeezing. This approach deals with inherent noise caused by the fact that light is made of individual particles: when the beams arrive at the sensor, each individual photon can arrive slightly too early or too late, which means that the laser waves don't overlap and cancel out perfectly even in the absence of gravitational waves. "It's like dropping a bucket of BBs [lead pellets]: it's going to make a loud hiss, but they all hit randomly," physicist Lee McCuller explained while showing a prototype of the LIGO interferometers at the Massachusetts Institute of Technology (MIT) in Cambridge. Light squeezing injects an auxiliary laser beam into the interferometer that reduces that effect. "Its photons arrive more regularly, with less noise," said McCuller, who is now at the California Institute of Technology in Pasadena.

An anonymous reader shares a report: In the latest blast of the HDD vs SSD culture wars, a Pure Storage exec is predicting that no more hard disk drives will be sold after 2028 because of electricity costs and availability, as well as NAND $/TB declines. Shawn Rosemarin, VP R&D within the Customer Engineering unit at Pure, told B&F: "The ultimate trigger here is power. It's just fundamentally coming down to the cost of electricity." Not the declining cost of SSDs and Pure's DFMs dropping below the cost of disks, although that plays a part. In his view: "Hard drive technology is 67 years old. We need to herald this technology that went from five megabytes the size of this room to where we are today. And even the latest HAMR technology, putting a laser on the top of the head in order to heat up the platters, is pretty remarkable ... But we're at the end of that era."

HDD vendors sing a different tune, of course. Back in 2021, HDD vendor Seagate said the SSD most certainly would not kill disk drives. There's a VAST vs Infinidat angle to it as well, with the former also stating disk drive IO limitations would cripple the use of larger disk drives in petabyte-scale data stores, with Infidat blasting back that it "must be joking." Gartner has had a look in too, claiming that enterprise SSDs will hit 35 percent of HDD/SSD exabytes shipped by 2026 - though that would make Rosemarin's 2028 cutoff unlikely. Pure recently stated SSDs would kill HDDs in a crossover event that would happen "soon." Rosemarin, meanwhile, continued his argument: "Our CEO in many recent events has quoted that 3 percent of the world's power is in datacenters. Roughly a third of that is storage. Almost all of that is spinning disk.

So if I can eliminate the spinning disk, and I can move to flash, and I can in essence reduce the power consumption by 80 or 90 percent while moving density by orders of magnitude in an environment where NAND pricing continues to fall, it's all becoming evident that hard drives go away." Are high electricity prices set to continue? "I think the UK's power has gone up almost 5x recently. And here's the thing ... when they go up, they very seldom if ever come down ... I've been asked many times do I think the cost of electricity will drop over time. And, frankly, while I wish it would and I do think there are technologies like nuclear that could help us over time. I think it'll take us several years to get there. We're already seeing countries putting quotas on electricity, and this is a really important one -- we've already seen major hyperscalers such as one last summer who tried to enter Ireland [and] was told you can't come here, we don't have enough power for you. The next logical step from that is OK, so now if you're a company and I start to say, well, we only have so much power, so I'm gonna give you X amount of kilowatts per X amount of employees, or I'm gonna give you X amount of kilowatts for X amount of revenue that you contribute to the GDP of the country or whatever metric is acceptable."

Slashdot reader Bruce66423 shared this report from LiveScience: Cosmic rays and lasers have revealed that deep underneath the city streets of Naples, Italy, lie the remains of the Greeks who originally settled the area, as well as the catacombs of Christians who lived there during the Roman era nearly two millennia ago, a new study finds...

The layers of contemporary buildings make it difficult to access ancient sewers, cisterns and tombs 33 feet (10 meters) underneath the streets, so a group of Italian and Japanese researchers hypothesized that they could identify previously unknown burial hypogea from the Hellenistic period using 21st-century techniques. Their study, published April 3 in the journal Scientific Reports, details how they used muography to detect underground voids that were unknown to archaeologists... In 1936, scientists discovered that muons are produced by cosmic rays in Earth's atmosphere, and that these tiny particles can easily penetrate walls and rocks, scattering in open spaces. In this study, the muons' tracks were recorded using nuclear emulsion technology, in which extremely sensitive photographic film is used to capture and visualize the paths of the charged particles.

By measuring muon flux — how many muons arrive in a particular area over time — and direction using a particle detector, researchers can peer into volcanoes, underground cavities and even the Egyptian pyramids through muography... Valeri Tioukov, a physicist at Italy's National Institute for Nuclear Physics, and his colleagues placed the muon tracking devices 59 feet (18 m) underground, in a 19th-century cellar that was used for aging ham, where they recorded the muon flux for 28 days, capturing about 10 million muons... 3D laser scans of the accessible structures can then be compared with the measured muon flux. Anomalies in the muon flux images that are not visible in the 3D model can be confidently assumed to be hidden or unknown cavities.

Muography revealed an excess of muons in the data that can be explained only by the presence of a new burial chamber. The chamber's area measures roughly 6.5 by 11.5 feet (2 by 3.5 m), according to the study, and its rectangular shape indicates it is human-made rather than natural.

The Associated Press reports that "water may be more widespread and recent on Mars than previously thought, based on observations of Martian sand dunes by China's rover." A paper published in Science suggests thin films of water appeared on sand dunes sometime between 1.4 million years ago and as recently as 400,000 years ago — or perhaps even sooner: The finding highlights new, potentially fertile areas in the warmer regions of Mars where conditions might be suitable for life to exist, though more study is needed...

Before the Zhurong rover fell silent, it observed salt-rich dunes with cracks and crusts, which researchers said likely were mixed with melting morning frost or snow as recently as a few hundred thousand years ago... Conditions during that period were similar to now on Mars, with rivers and lakes dried up and no longer flowing as they did billions of years earlier...

The rover did not directly detect any water in the form of frost or ice. But Qin said computer simulations and observations by other spacecraft at Mars indicate that even nowadays at certain times of year, conditions could be suitable for water to appear... Small pockets of water from thawing frost or snow, mixed with salt, likely resulted in the small cracks, hard crusty surfaces, loose particles and other dune features like depressions and ridges, the Chinese scientists said.
Space.com explains exactly how the discovery was confirmed: The laser-induced breakdown spectrometer (MarSCoDe) instrument onboard the rover zapped sand grains into millimeter-sized particles. Their chemical makeup revealed hydrated minerals like sulfates, silica, iron oxide and chlorides... Researchers say water vapor traveled from Martian poles to lower latitudes like Zhurong's spot a few million years ago, when the planet's polar ice caps released high amounts of water vapor, thanks to a different tilt that had Mars' poles pointed more directly toward the sun. Frigid temperatures on the wobbling planet condensed the drifting vapor and dropped it as snow far from the poles, according to the latest study.

Mars' tilt changes over a 124,000-year cycle, so "this offers a replenishing mechanism for vapor in the atmosphere to form frost or snow at low latitudes where the Zhurong rover has landed," Qin told Space.com. But "no water ice was detected by any instrument on the Zhurong rover." Instead, in the same way that salting roads on Earth melts icy patches during storms, salts in Martian sand dunes warmed the fallen snow and thawed it enough to form saltwater. The process also formed minerals such as silica and ferric oxides, which Zhurong spotted, researchers say. The saltwater, however, didn't stay around for long. Temperatures on Mars swing wildly and spike in the mornings between 5 a.m. and 6 a.m., so the saltwater evaporated and left behind salt and other newly formed minerals that later seeped between the dune's sand grains, cementing them to form a crust, according to the study...

"The phenomenon was documented at one site, but it should be applicable to a fairly large fraction of Mars' surface at similar latitudes," Manasvi Lingam, an assistant professor of astrobiology at the Florida Institute of Technology who wasn't involved in the new research, told Space.com.
Since the rover found water activity on (and in) salty Martian dunes, the researchers now suggest future missions search for salt-tolerant microbes , and are raising the possibility of "extant life on Mars."

In a strange twist to the long history of the Palo Alto Research Center, Xerox has announced the donation of the lab's Silicon Valley headquarters and related assets to SRI International, another well-established tech research center. From a report: Opened in 1970, PARC was a pioneering developer of technologies like the graphic user interface, laser printing and Ethernet networking. PARC has recently been doing work in areas like artificial intelligence, the internet of things, clean tech and 3-D printing.

Clancy William James writes via The Conversation: We have just published evidence in Nature Astronomy for what might be producing mysterious bursts of radio waves coming from distant galaxies, known as fast radio bursts or FRBs. Two colliding neutron stars -- each the super-dense core of an exploded star -- produced a burst of gravitational waves when they merged into a "supramassive" neutron star. We found that two and a half hours later they produced an FRB when the neutron star collapsed into a black hole. Or so we think. The key piece of evidence that would confirm or refute our theory -- an optical or gamma-ray flash coming from the direction of the fast radio burst -- vanished almost four years ago. In a few months, we might get another chance to find out if we are correct. [...]

The Laser Interferometer Gravitational-Wave Observatory (LIGO) has found two binary neutron star mergers. Crucially, the second, known as GW190425, occurred when a new FRB-hunting telescope called CHIME was also operational. However, being new, it took CHIME two years to release its first batch of data. When it did so, [Alexandra Moroianu, a masters student at the University of Western Australia and lead author of the study] quickly identified a fast radio burst called FRB 20190425A which occurred only two and a half hours after GW190425. Exciting as this was, there was a problem -- only one of LIGO's two detectors was working at the time, making it very uncertain where exactly GW190425 had come from. In fact, there was a 5% chance this could just be a coincidence. Worse, the Fermi satellite, which could have detected gamma rays from the merger -- the "smoking gun" confirming the origin of GW190425 -- was blocked by Earth at the time. [...]

LIGO and two other gravitational wave detectors, Virgo and KAGRA, will turn back on in May this year, and be more sensitive than ever, while CHIME and other radio telescopes are ready to immediately detect any FRBs from neutron star mergers. In a few months, we may find out if we've made a key breakthrough -- or if it was just a flash in the pan.

"TikTok CEO Shou Zi Chew testified before the House Energy and Commerce Committee Thursday about safety and national security concerns surrounding his social media behemoth," writes MSNBC, adding "He was not well received." Given what we know about how Big Tech abuses data, about how China's authoritarian government systematically embraces surveillance as a tool of social control, and about the increasingly adversarial geopolitical relationship between the U.S. and China, it's not sinophobic to ask questions about how to guard against TikTok's misuse. It's common sense. While a ban is probably too drastic and may fail to solve all the issues at hand, regulating the company is sensible. Fortunately, one of the key ways to address some of the concerns posed by TikTok — restricting all companies' capacity to collect data on Americans — could help us solve problems with online life that extends well beyond this social media platform....

[Evan Greer, the director at Fight for the Future, a digital rights organization], believes members of Congress laser focused on TikTok are "on a sidequest" in the scheme of a bigger crisis of surveillance of online life; Greer points to the American Data Privacy and Protection Act as a potential solution. That law would put in place strong data minimization policies, strictly limiting how and how much data companies can collect on people online. It also would deal a huge blow to the power of the algorithms of TikTok and other social media apps because their content recommendation relies on collecting huge amounts of data about its users. The passage of that act would force any company operating in the U.S., not just TikTok, to collect far less data — and reduce all social media companies' capacities to shape the flow of information through algorithmic amplification.

In addition to privacy legislation, the Federal Trade Commission could play a more aggressive role in creating and enforcing rules around commercial surveillance, Greer pointed out. TikTok raises legitimately tricky questions about national security. But it's not the only social media company that does, and national security concerns aren't the only reason to rethink the freedom we've given to social media companies in our society. Any time a powerful actor has vast control over the flow of information, it should be scrutinized as a possible source of exploitation, censorship and manipulation — and, when appropriate, regulated. TikTok should serve as the springboard for that conversation, not the beginning and ending of it.
CNN points out that TikTok isn't the only Chinese-owned platform finding viral success in America. "Of the top 10 most popular free apps on Apple's U.S. app store, four were developed with Chinese technology." Besides TikTok, there's also shopping app Temu, fast fashion retailer Shein and video editing app CapCut, which is also owned by ByteDance.
Duncan Clark, chairman and founder of investment advisory BDA China, tells CNN that these apps could be next.

But writing in the New York Times, the executive director of the Knight First Amendment Institute at Columbia argues that "it's difficult to see how a ban could survive First Amendment review." The Supreme Court and lower courts have held repeatedly that the mere invocation of national security is insufficient to justify the suppression of First Amendment rights. In court, the government will have to introduce evidence that the threats it is addressing are real, not merely conjectural, and that the proposed ban would address those threats. The evidence assembled so far is not likely to be sufficient. All of this will no doubt be frustrating to some policymakers, including to some who are commendably focused on the very real risks that social media companies' practices pose to Americans' privacy and security. But the legitimacy of our democracy depends on the free trade of information and ideas, including across international borders.

sciencehabit shares a report from Science Magazine: Researchers have designed a robot that can create and cook a cake with up to seven ingredients, more than any other printed food to date. The scientists built their programmable patisserie by retrofitting a 3D printer with nozzles designed to squeeze out selected ingredients. They then programmed it to dispense those into layered cakes. Initial trials resulted in triangular gobs of sweet goo, so the researchers came up with a winning recipe that could hold its own. They nested softer ingredients, such as jelly and banana puree, inside of stiffer ingredients, such as peanut butter and Nutella, then reinforced those with hefty doses of graham cracker crust. Then, they broiled the crust with a laser and topped the cake with frosting and cherry glaze. The result? A cheesecake, of sorts.

Despite its novelty, the computer-guided cook may not be able to battle it out under the stern eye of a guest judge any time soon -- each slice took about 30 minutes to print. Further in the future, however, better printers could make some cooking automatic, freeing people from kitchen tasks they may find tiring or repetitive -- assuming you don't enjoy those things. A food printer could also be programmed to dispense meals with precision-controlled nutrient and calorie content, helping prepare food for those on strict diets. The study has been published in the journal npj Science of Food.

Long-time Slashdot reader turp182 shares two stories about the new state-of-the-art in very-high-speed imaging. "The techniques don't image captured photons, but instead 'touch' the target to perform imaging/read structures using either lasers or neutrons."

First, Science Daily reports that physicists from the University of Gothenburg (with colleagues from the U.S. and Germany) have developed an ultrafast laser camera that can create videos at 12.5 billion images per second, "which is at least a thousand times faster than today's best laser equipment." [R]esearchers use a laser camera that photographs the material in [an ultrathin, one-atom-thick] two-dimensional layer.... By observing the sample from the side, it is possible to see what reactions and emissions occur over time and space. Researchers have used single-shot laser sheet compressed ultrafast photography to study the combustion of various hydrocarbons.... This has enabled researchers to illustrate combustion with a time resolution that has never been achieved before. "The more pictures taken, the more precisely we can follow the course of events...." says Yogeshwar Nath Mishra, who was one of the researchers at the University of Gothenburg and who is now presenting the results in a scientific article in the journal Light: Science & Applications.... The new laser camera takes a unique picture with a single laser pulse.
Meanwhile, ScienceAlert reports on a camera with a trillionth-of-a-second shutter speed — that is, 250 million times faster than digital cameras — that's actually able to photograph atomic activity, including "dynamic disorder." Simply put, dynamic disorder is when clusters of atoms move and dance around in a material in specific ways over a certain period — triggered by a vibration or a temperature change, for example. It's not a phenomenon that we fully understand yet, but it's crucial to the properties and reactions of materials. The new super-speedy shutter speed system gives us much more insight into what's happening....

The researchers are referring to their invention as variable shutter atomic pair distribution function, or vsPDF for short.... To achieve its astonishingly quick snap, vsPDF uses neutrons to measure the position of atoms, rather than conventional photography techniques. The way that neutrons hit and pass through a material can be tracked to measure the surrounding atoms, with changes in energy levels the equivalent of shutter speed adjustments.

The Washington Post reports: A new spectacle is taking over the tented world of acrobats, clowns and juggling entertainers. And while it may have a trunk and tusks, it weighs absolutely nothing. Circuses, once known for showcasing elephants in all their heft are now presenting a much lighter creature — a 3D hologram.

The Circus-Theater Roncalli in Germany was the first to do it, and photographer Davide Bertuccio wanted to see for himself how the group pulled it off. When he attended a show at the end of 2022, he was immediately struck by the quiet atmosphere inside the tent. "Finding a circus without the din of animals, but the simple noise of people was a surprise" he said.

The holographic figures are custom-built for the circus using 3D animations, photography and virtual rendering. The system of 11 digital laser projectors positioned around the stage flash animations onto a circular net hoisted up for each performance. The entire light show is operated by one person, and it takes about 10 people to take down the metallic netting to make room for the other performers, including acrobats, clowns and dancers, Bertuccio said.
The circus introduced the holograms in 2019, the Post reports, and "other acts have followed suit, including the French circus L'Écocirque, which features holograms of a lion, an elephant and beluga whales, accompanied by a live orchestra blaring rock music."

An anonymous reader quotes a report from Gizmodo: Wilson has been working to redesign the basketball with a prototype that's covered in an intricate pattern of holes but never goes flat. Although calling the basketball "airless" is a bit of a misnomer given air is still able to pass right through it, it's the most common term that's been used to describe this technology that replaces the need for pressurized bladders in objects designed to bounce or absorb impacts. Wilson partnered with a company called EOS which specializes in the use of 3D printing for industrial uses including medical and aerospace applications, to manufacture the unorthodox basketball design that's covered in a pattern of open hexagons instead of sealed leather panels.

EOS relied on additive 3D printing technology which, instead of building up layers of extruded melted plastic, uses a powdered resin that's hardened by a laser to create ultra-thin stacked layers with even more detail. The result is a completely hollow basketball that nearly matches the "performance specifications of a regulation basketball, including its weight, size and rebound (bounce)." The 3D-printed ball can even be dyed in various colors, with the prototype being made all-black for its debut during the 2023 NBA All-Star Game festivities this past weekend. "The NBA currently doesn't have any plans to switch to Wilson's 3D-printed airless basketball design, but that doesn't mean it's a failure," notes Gizmodo. "[E]ven if it never finds its way into the NBA, it could still help make the game more accessible on playground courts across the country where pick-up games will never have to be canceled because no one can find a pump to fix a flat ball."

The company explains how the prototype basketball was made in a video on YouTube.

As nations around the world scramble to secure crucial semiconductor supply chains over fears about relations with China, the U.K. is falling behind. From a report: The COVID-19 pandemic exposed the world's heavy reliance on Taiwan and China for the most advanced chips, which power everything from iPhones to advanced weapons. For the past two years, and amid mounting fears China could kick off a new global security crisis by invading Taiwan, Britain's government has been readying a plan to diversify supply chains for key components and boost domestic production. Yet according to people close to the strategy, the U.K.'s still-unseen plan -- which missed its publication deadline last fall -- has suffered from internal disconnect and government disarray, setting the country behind its global allies in a crucial race to become more self-reliant.

A lack of experience and joined-up policy-making in Whitehall, a period of intense political upheaval in Downing Street, and new U.S. controls on the export of advanced chips to China, have collectively stymied the U.K.'s efforts to develop its own coherent plan. The way the strategy has been developed so far "is a mistake," said a former senior Downing Street official. During the pandemic, demand for semiconductors outstripped supply as consumers flocked to sort their home working setups. That led to major chip shortages -- soon compounded by China's tough "zero-COVID" policy. Since a semiconductor fabrication plant is so technologically complex -- a single laser in a chip lithography system of German firm Trumpf has 457,000 component parts -- concentrating manufacturing in a few companies helped the industry innovate in the past. But everything changed when COVID-19 struck.

fahrbot-bot shares a report from Engadget: Lightning rods have been used to safely guide strikes into the ground since Benjamin Franklin's day, but their short range (roughly the same radius as the height) and fixed-in-place design makes them ineffective for protecting large areas. The technology may finally be here to replace them in some situations. European researchers have successfully tested a system that uses terawatt-level laser pulses to steer lighting toward a 26-foot rod. It's not limited by its physical height, and can cover much wider areas -- in this case, 590 feet -- while penetrating clouds and fog.

["The experiment was performed on Santis Mountain, in northeast Switzerland," adds The Washington Post. "A 407-foot (124-meter) communications tower there, equipped with a lightning rod, is struck roughly a hundred times a year."] The design ionizes nitrogen and oxygen molecules, releasing electrons and creating a plasma that conducts electricity. As the laser fires at a very quick 1,000 pulses per second, it's considerably more likely to intercept lightning as it forms. In the test, conducted between June and September 2021, lightning followed the beam for nearly 197 feet before hitting the rod. The findings have been published in the journal Nature Photonics. A video of the work has also been published on YouTube.

CNN reports: Mars may seem like a dry, desolate place, but the red planet transforms into an otherworldly wonderland in winter, according to a new video shared by NASA....

"Enough snow falls that you could snowshoe across it," said Sylvain Piqueux, a Mars scientist at NASA's Jet Propulsion Laboratory in Pasadena, California, in a statement from a NASA release. "If you were looking for skiing, though, you'd have to go into a crater or cliffside, where snow could build up on a sloped surface."

So far, no orbiters or rovers have been able to see snow fall on the red planet because the weather phenomenon only occurs at the poles beneath cloud cover at night. The cameras on the orbiters can't peer through the clouds, and no robotic explorers have been developed that could survive the freezing temperatures at the poles. [ -190 degrees Fahrenheit, or -123 degrees Celsius) ] However, the Mars Climate Sounder instrument on the Mars Reconnaissance Orbiter can detect light that's invisible to the human eye. It has made detections of carbon dioxide snow falling at the Martian poles. The Phoenix lander, which arrived on Mars in 2008, also used one of its laser instruments to detect water-ice snow from its spot about 1,000 miles (1,609 kilometers) away from the Martian north pole....

"Because carbon dioxide ice has a symmetry of four, we know dry-ice snowflakes would be cube-shaped," Piqueux said. "Thanks to the Mars Climate Sounder, we can tell these snowflakes would be smaller than the width of a human hair."

Ice and carbon dioxide-based frosts also form on Mars, and they can occur farther away from the poles. The Odyssey orbiter (which entered Mars' orbit in 2001) has watched frost forming and turning to a gas in the sunlight, while the Viking landers spotted icy frost on Mars when they arrived in the 1970s. At the end of winter, the season's buildup of ice can thaw and turn into gas, creating unique shapes that have reminded NASA scientists of Swiss cheese, Dalmatian spots, fried eggs, spiders and other unusual formations.
That's just the beginning, according to a press release from NASA's Jet Propulsion Lab: This "thawing" also causes geysers to erupt: Translucent ice allows sunlight to heat up gas underneath it, and that gas eventually bursts out, sending fans of dust onto the surface. Scientists have actually begun to study these fans as a way to learn more about which way Martian winds are blowing.
And they also note that the camera aboard NASA's Mars Reconnaissance Orbiter also captured some surprisingly colorful images of sand dunes covered by frost

YouTube's Doctor Volt repurposed a Blu-Ray drive, which are now easy to find on the cheap in the era of streaming content, to build a simple scanning laser microscope. Gizmodo reports: A couple of custom-designed and manufactured plastic parts were added to the mix to create a scanning bed for a sample that could move back in forth in one direction, while the laser itself shifted back and forth in the other. Unlike an optical microscope, where the entirely of an object is imaged at once, a scanning laser microscope takes light intensity measurements in increments, moving across an object in a grid and assembling a magnified image pixel by pixel. In this case, given the limitations of the Blu-Ray drive's spindle, which moves the sample being viewed back and forth, the image is assembled from 16,129 measurements (a 127x127 grid) and then scaled up to a 512x512 image.

A browser-based user interface written in Java allows focus adjustments and the scanning speed of the microscope to be modified, but at the slowest possible speed, the results are surprisingly good and recognizable. Certainly not comparable to what you'd get from lab equipment that costs tens of thousands of dollars, but for a re-purposed Blu-Ray drive you could get for less than $20 on eBay, this is an impressive hack.

Scientists studying fusion energy at Lawrence Livermore National Laboratory in California announced on Tuesday that they had crossed a major milestone in reproducing the power of the sun in a laboratory. From a report: Scientists for decades have said that fusion, the nuclear reaction that makes stars shine, could provide a future source of bountiful energy. The result announced on Tuesday is the first fusion reaction in a laboratory setting that actually produced more energy than it took to start the reaction.

"This is such a wonderful example of a possibility realized, a scientific milestone achieved, and a road ahead to the possibilities for clean energy," Arati Prabhakar, the White House science adviser, said during a news conference on Tuesday morning at the Department of Energy's headquarters in Washington, D.C. "And even deeper understanding of the scientific principles that are applied here." From an environmental perspective, fusion has always had a strong appeal. Within the sun and stars, fusion continually combines hydrogen atoms into helium, producing sunlight and warmth that bathes the planets.

In experimental reactors and laser labs on Earth, fusion lives up to its reputation as a very clean energy source, devoid of the pollution and greenhouse gases produced by the burning of fossil fuels and the dangerous long-lived radioactive waste created by current nuclear power plants, which use the splitting of uranium to produce energy. There was always a nagging caveat, however. In all of the efforts by scientists to control the unruly power of fusion, their experiments consumed more energy than the fusion reactions generated. That changed at 1:03 a.m. on Dec. 5 when 192 giant lasers at the laboratory's National Ignition Facility blasted a small cylinder about the size of a pencil eraser that contained a frozen nubbin of hydrogen encased in diamond.

"U.S. scientists have reportedly carried out the first nuclear fusion experiment to achieve a net energy gain," reports the Independent, "a major breakthrough in a field that has been pursuing such a result since the 1950s, and a potential milestone in the search for a climate-friendly, renewable energy source to replace fossil fuels." The experiment took place in recent weeks at the government-funded Lawrence Livermore National Laboratory in California, where researchers used a process known as inertial confinement fusion, the Financial Times reports, citing three people with knowledge of the experiment's preliminary results. The test involved bombarding a pellet of hydrogen plasma with the world's largest laser to trigger a nuclear fusion reaction, the same process which takes place in the sun.

Researchers were able to produce 2.5 megajoules of energy, 120 per cent of the 2.1 megajoules used to power the experiment. The laboratory confirmed to the FT it had recently conducted a "successful" experiment at the National Ignition Facility, but declined to comment further, citing the preliminary nature of the data....

"Scientists have struggled to show that fusion can release more energy out than is put in since the 1950s, and the researchers at Lawrence Livermore seem to have finally and absolutely smashed this decades-old goal," Arthur Turrell, deputy director of the UK Office for National Statistics, wrote on Twitter on Sunday. "This experimental result will electrify efforts to eventually power the planet with nuclear fusion — at a time when we've never needed a plentiful source of carbon-free energy more!"
But "the resources needed to recreate the reaction on the scale required to make fusion practical for energy production are immense," reports the Washington Post: More importantly, engineers have yet to develop machinery capable of affordably turning that reaction into electricity that can be practically deployed to the power grid. Building devices that are large enough to create fusion power at scale, scientists say, would require materials that are extraordinarily difficult to produce. At the same time, the reaction creates neutrons that put a tremendous amount of stress on the equipment creating it, such that it can get destroyed in the process. And then there is the question of whether the technology could be perfected in time to make a dent in climate change.

Even so, researchers and investors in fusion technology hailed the breakthrough as an important advancement.

Elon Musk's SpaceX is expanding its Starlink satellite technology into military applications with a new business line called Starshield. CNBC reports: "While Starlink is designed for consumer and commercial use, Starshield is designed for government use," the company wrote on its website. Few details are available about the intended scope and capabilities of Starshield. The company hasn't previously announced tests or work on Starshield technology.

On its website, SpaceX said the system will have "an initial focus" on three areas: Imagery, communications and "hosted payloads" -- the third of which effectively offers government customers the company's satellite bus (the body of the spacecraft) as a flexible platform. The company also markets Starshield as the center of an "end-to-end" offering for national security: SpaceX would build everything from the ground antennas to the satellites, launch the latter with its rockets, and operate the network in space.

SpaceX notes that Starshield uses "additional high-assurance cryptographic capability to host classified payloads and process data securely," building upon the data encryption it uses with its Starlink system. Another key feature: the "inter-satellite laser communications" links, which the company currently has connecting its Starlink spacecraft. It notes that the terminals can be added to "partner satellites," so as to connect other companies' government systems "into the Starshield network."