NASA

Visiting the Roman Space Telescope - as It's Being Assembled (msn.com) 25

"The next great space telescope will study distant galaxies and faraway planets from an orbital outpost about a million miles from Earth," writes the Washington Post. "But first it has to be put together, piece by piece, in a cavernous chamber at the NASA Goddard Space Flight Center in Greenbelt, Maryland."

One long-time NASA worker calls it "the largest clean room in the free world," and the Post notes everyone wears white gowns and surgical masks "to keep hardware from being contaminated by humans. No dust allowed. No stray hairs. One wall is entirely covered by HEPA filters." The place is known as the Clean Room, or sometimes the High Bay. It is 125 feet long, 100 feet wide, 90 feet high, with almost as much volume as the Capitol Rotunda. NASA boasts that in the Clean Room you could put nearly 30 tractor-trailers side by side on the floor and stack them 10 high... About two dozen workers clustered around towering pieces of hardware, some twice or three times the height of a typical person. When stacked and integrated, these components will form the Nancy Grace Roman Space Telescope.

The assembly of the telescope ramped up this fall, with 600 workers aiming to get everything integrated and tested by late 2026. NASA has committed to launching the telescope no later than May 2027. The telescope will be roughly the size of the Hubble Space Telescope, but not quite as long (a "stubby Hubble," some call it). What the astronomy community and the general public will receive in exchange for the considerable taxpayer investment of nearly $4 billion is an instrument that can do what other telescopes can't.

It will have a sprawling field of view, about 100 times that of the Hubble or Webb space telescopes. And it will be able to pivot quickly across the night sky to new targets and download tremendous amounts of data that will be instantly available to the researchers. A primary goal of the Roman is to understand "dark energy," the mysterious driver of the accelerating expansion of space. But it will also attempt to study the atmospheres of exoplanets — worlds orbiting distant stars...

The main element, informally referred to as "the telescope" but officially called the "optical telescope assembly," showed up this fall. It was originally built as a spy satellite for the National Reconnaissance Office. That's right: It was built to look down at Earth, rather than at the rest of the universe. The NRO decided more than a decade ago that it didn't need it, and gave it, along with another, identical spy satellite, to NASA. Roman's wide-angle view of deep space, its maneuverability and ability to download massive amounts of data makes it optimized as a dark energy telescope. And it will also study the effects of dark matter, which comprises about 25 percent of the universe but remains a ghostly presence.

Power

British Startup Nyobolt Demos 4-Minute Battery Charging For EVs (cnn.com) 174

Longtime Slashdot reader fahrbot-bot shares a report from CNN, written by Olesya Dmitracova: Nyobolt, based in Cambridge, has developed a new 35kWh lithium-ion battery that was charged from 10% to 80% in just over four and a half minutes in its first live demonstration last week. [...] Nyobolt's technology builds on a decade of research led by University of Cambridge battery scientist Clare Grey and Cambridge-educated Shivareddy, the company said. Key to its batteries' ability to be charged super-fast without a big impact on their longevity is a design that means they generate less heat. It also makes them safer as overheating can cause a lithium-ion battery to catch fire and explode. In addition, the materials used to make the batteries' anodes allow for a faster transfer of electrons. Nyobolt is currently in talks to sell its batteries to eight electric car manufacturers. At 35 kWh, the battery is much smaller than the 85 kWh in a more typical American electric vehicle (EV). Yet the technology may be used in larger battery packs in the future.

Independent testing of Nyobolt's batteries by what it called a leading global manufacturer found that they can achieve over 4,000 fast-charge cycles, equivalent to 600,000 miles (965,600 kilometers), while retaining more than 80% of capacity, Nyobolt said in its Friday statement. William Kephart, an e-mobility specialist at consultancy P3 Group and a former engineer, said EV batteries of the kind Nyobolt has developed could "theoretically" be charged as fast as the firm is promising, but the challenge was manufacturing such batteries on an industrial scale. A crucial chemical element in Nyobolt's batteries is niobium but, as Kephart pointed out, last year only an estimated 83,000 tons (94,500 tons) was mined worldwide. Compare that with graphite, commonly used as anode material in lithium-ion batteries: an estimated 1.6 million tons (1.8 million tons) was produced in 2023. In addition, there are currently "a lot of unknowns" with the niobium battery technology, he told CNN. "The industry will work it out (but) it's not seen by the industry as a scalable technology just yet," he added.

Graphics

SF Writer/Digital Art/NFT Pioneer Herbert W. Franke Dies at Age 95 (artnews.com) 20

On July 7th Art News explained how 95-year-old Austrian artist Herbert W. Franke "has recently become a sensation within the art world the crypto space," describing the digital pioneer as a computer artist using algorithms and computer programs to visualize math as art. Last month, the physicist and science fiction writer was behind one of the most talked about digital artworks at a booth by the blockchain company Tezos at Art Basel. Titled MONDRIAN (1979), the work paid tribute to artist Piet Mondrian's iconic geometric visuals using a program written on one of the first home computers.

Days before this, Franke, who studied physics in Vienna following World War II and started working at Siemens in 1953, where he conducted photographic experiments after office hours, launched 100 images from his famed series "Math Art" (1980-95) as NFTs on the Quantum platform. The drop was meant to commemorate his birthday on May 14 and to raise funds for his foundation. The NFTs sold out in 30 seconds, with the likes of pioneering blockchain artist Kevin Abosch purchasing a few.

In one of his last interviews, Franke told the site that blockchain "is a totally new environment, and this technology is still in its early stages, like at the beginning of computer art. But I am convinced that it has opened a new door for digital art and introduced the next generation to this new technology." It echoed something he'd said in his first book, published in 1957, which he later quoted in the interview (a full 65 years later). "Technology is usually dismissed as an element hostile to art. I want to try to prove that it is not..."

This morning, long-time Slashdot reader Qbertino wrote: The German IT news site heise reports (article in German) that digital art pioneer, SF author ("The Mind Net") and cyberspace avantgardist Herbert W. Franke has died at age 95. His wife recounted on his Twitter account: "Herbert loved to call himself the dinosaur of computer art. I am [...] devastated to announce that our beloved dinosaur has left the earth.

"He passed away knowing there is a community of artists and art enthusiasts deeply caring about his art and legacy."
Among much pioneering work he founded one of the worlds first digital art festivals "Ars Electronica" in Austria in 1979.

Franke's wife is still running the Art Meets Science web site dedicated to Franke's work. Some highlights from its biography of Franke's life: Herbert W. Franke, born in Vienna on May 14, 1927, studied physics and philosophy at the University of Vienna and received his doctorate in 1951... An Apple II was his first personal computer which he bought 1980. He developed a program as early as 1982 that used a midi interface to control moving image sequences through music....

Only in recent years has "art from the machine" begun to interest traditional museums as a branch of modern art. Franke, who from the beginning was firmly convinced of the future importance of this art movement, has also assembled a collection of computer graphics that is unique in the world, documenting 50 years of this development with works by respected international artists, supplemented by his own works....

As a physicist, Franke was predestined to bring science and technology closer to the general public in popular form due to his talent as a writer, which became apparent early on. About one-third of his nearly fifty books, as well as uncounted journal articles...

Franke's novels and stories are not about predicting future technologies, nor about forecasting our future way of life, but rather about the intellectual examination of possible models of our future and their philosophical as well as ethical interpretation. In this context, however, Franke attaches great importance to the seriousness of scientific or technological assessments of the future in the sense of a feasibility analysis. In his opinion, a serious and meaningful discussion about future developments can basically only be conducted on this basis. In this respect, Franke is not a typical representative of science fiction, but rather a visionary who, as a novelist, deals with relevant questions of social future and human destiny on a high intellectual level.

AI

Can We Write Better Algorithms With Machine Learning? (quantamagazine.org) 19

Quanta magazine describes an "explosion of interest" in what they're calling algorithms with predictions, arguing that machine learning tools "have, in a real way, rejuvenated research into basic algorithms." Machine learning and traditional algorithms are "two substantially different ways of computing, and algorithms with predictions is a way to bridge the two," said Piotr Indyk, a computer scientist at the Massachusetts Institute of Technology. "It's a way to combine these two quite different threads...." In the past few years, researchers have shown how to incorporate algorithms with predictions into scheduling algorithms, chip design and DNA-sequence searches.

In addition to performance gains, the field also advances an approach to computer science that's growing in popularity: making algorithms more efficient by designing them for typical uses.... By ignoring the worst-case scenarios, researchers can design algorithms tailored to the situations they'll likely encounter. For example, while databases currently treat all data equally, algorithms with predictions could lead to databases that structure their data storage based on their contents and uses....

[M]ost of these new structures only incorporate a single machine learning element. Tim Kraska, a computer scientist at MIT, imagines an entire system built up from several separate pieces, each of which relies on algorithms with predictions and whose interactions are regulated by prediction-enhanced components.

"Taking advantage of that will impact a lot of different areas," Kraska said.

Power

Engineers Boost Output of Solar Desalination System By 50 Percent (phys.org) 45

An anonymous reader quotes a report from Phys.Org: Researchers in Rice's Laboratory for Nanophotonics (LANP) this week showed they could boost the efficiency of their solar-powered desalination system by more than 50% simply by adding inexpensive plastic lenses to concentrate sunlight into "hot spots." The results are available online in the Proceedings of the National Academy of Sciences. "The typical way to boost performance in solar-driven systems is to add solar concentrators and bring in more light," said Pratiksha Dongare, a graduate student in applied physics at Rice's Brown School of Engineering and co-lead author of the paper. "The big difference here is that we're using the same amount of light. We've shown it's possible to inexpensively redistribute that power and dramatically increase the rate of purified water production."

In conventional membrane distillation, hot, salty water is flowed across one side of a sheetlike membrane while cool, filtered water flows across the other. The temperature difference creates a difference in vapor pressure that drives water vapor from the heated side through the membrane toward the cooler, lower-pressure side. Scaling up the technology is difficult because the temperature difference across the membrane -- and the resulting output of clean water -- decreases as the size of the membrane increases. Rice's "nanophotonics-enabled solar membrane distillation" (NESMD) technology addresses this by using light-absorbing nanoparticles to turn the membrane itself into a solar-driven heating element. Dongare and colleagues, including study co-lead author Alessandro Alabastri, coat the top layer of their membranes with low-cost, commercially available nanoparticles that are designed to convert more than 80% of sunlight energy into heat. The solar-driven nanoparticle heating reduces production costs, and Rice engineers are working to scale up the technology for applications in remote areas that have no access to electricity.

Iphone

Folding iPhone Patent Application Shows How the Company Could Prevent Damage In Cold Weather (appleinsider.com) 51

A new patent application from Apple, titled "Electronic Devices with Flexible Displays," describes how the company could prevent foldable smartphone displays from getting damaged in extreme temperatures. "While at or in the region of typical temperatures hospitable to humans, folding systems may work fine, but adhesives and other elements used in a device's production may become more resistant to flexing at cold temperatures, which could cause unwanted wear or damage to the display if attempted in such conditions," reports AppleInsider. "To mitigate the cold temperature, Apple simply suggests there should be some way to warm up the area of the display panel where the bend takes place." From the report: As part of Apple's solution, an onboard temperature sensor is used to determine how warm the device is, and whether or not there is any danger to allowing the screen to be flexed by the user. The warming process itself can be performed by a heating element located near to the section that bends the most, with heat conductors transferring the warmth to where it is required. A heating element may not be practical to add to such a device, which has led to Apple suggesting an alternative, namely using the heat generated by illuminating the screen. To do this, a screensaver could be used that concentrates most on the bent section, such as by making it brighter and lit up more than the rest of the screen.

As the heating process could take time to complete, Apple notes there is a danger of the display being flexed before it is safe to do so, something it has also considered. Aside from warning the user on an attempt to bend, Apple believes the use of a latching mechanism to keep the device closed while folded may be worth investigating, both as a mechanical latch and by the folded device being held shut by magnets. When the temperature of the area is relatively safe, the latching system can be disengaged and the user will be free to open the device once again. The patent application does not seem to answer the question of how to prevent the user from folding up an unfolded device, but it could be feasible some form of locking mechanism could be used when the smartphone is flat.

Power

Russian Scientists Upgrade Nuclear Battery Design To Increase Power Output (sciencealert.com) 150

schwit1 shares a report from ScienceAlert: A team of Russian researchers have put a new spin on technology that uses the beta decay of a radioactive element to create differences in voltage. The devices are made of stacks of isotope of nickel-63 sandwiched between a pair of special semiconducting diodes called a Schottky barrier. This barrier keeps a current headed one way, a feature often used to turn alternating currents into direct ones. Finding that the optimal thickness of each layer was just 2 micrometers, the researchers were able to maximize the voltage produced by every gram of isotope.

Nickel-63 has a half-life of just over 100 years, which in an optimized system like this adds up to 3,300 milliwatt-hours of energy per gram: ten times the specific energy of your typical electrochemical cell. It's a significant step up from previous nickel-63 betavoltaic devices, and while it isn't quite enough to power your smart phone, it does bring it into a realm of being useful for a wide variety of tasks.

AI

Tech Giants Are Paying Huge Salaries For Scarce AI Talent (santafenewmexican.com) 156

jmcbain writes: Machine learning and artificial intelligence skills are in hot demand right now, and it's driving up the already-high salaries in Silicon Valley. "Tech's biggest companies are placing huge bets on artificial intelligence (Warning: may be paywalled; alternative source)," reports the New York Times, and "typical AI specialists, including both Ph.D.s fresh out of school and people with less education and just a few years of experience, can be paid from $300,000 to $500,000 a year or more in salary and company stock." The New York Times notes there are several catalysts for rocketing salaries that all come down to supply and demand. There is competition among the giant companies (e.g. Google, Facebook, and Uber) as well as the automative companies wanting help with self-driving cars. However, the biggest issue is the supply: "Most of all, there is a shortage of talent, and the big companies are trying to land as much of it as they can. Solving tough A.I. problems is not like building the flavor-of-the-month smartphone app. In the entire world, fewer than 10,000 people have the skills necessary to tackle serious artificial intelligence research, according to Element AI, an independent lab in Montreal."
Intel

Why Micron/Intel's New Cross Point Memory Could Virtually Last Forever 179

Lucas123 writes: As they announced their new 3D XPoint memory this week, Micron and Intel talked a lot about its performance being 1,000X that of NAND flash, but what they talked less about was how it also has the potential to have 1,000X the endurance of today's most popular non-volatile memories. NAND flash typically can sustain from 3,000 to 10,000 erase-write cycles — more with wear-leveling and ECC. If Micron and Intel's numbers are to be believed, 3D XPoint could exceed one million write cycles. The reason for that endurance involves the material used to create the XPoint architecture, which neither company will disclose. Unlike NAND flash, cross point resistive memory does not use charge trap technology that wears silicon oxide over time or a typical resistive memory filamentary architecture, which creates a statistical variation in how the filaments form each time you program them; that can slow ReRAM's performance and make it harder to scale. Russ Meyer, Micron's director of process integration, said 3D XPoint's architecture doesn't store electrons or use filaments. "The memory element itself is simply moving between two different resistance states," which means there's virtually no wear.
Privacy

The Correct Response To Photo Hack Victim-Blamers 622

Bennett Haselton writes As commenters continue to blame Jennifer Lawrence and other celebrities for allowing their nude photos to be stolen, there is only one rebuttal to the victim-blaming which actually makes sense: that for the celebrities taking their nude selfies, the probable benefits of their actions outweighed the probable negatives. Most of the other rebuttals being offered, are logically incoherent, and, as such, are not likely to change the minds of the victim-blamers. Read below to see what Bennett has to say.
Games

Mining Companies Borrow From Gamers' Physics Engines 39

littlekorea writes "Mining companies are developing new systems for automating blasting of iron ore using the same open source physics engines adapted for games such as Grand Theft Auto IV and Red Dead Redemption. The same engine that determines 3D collision detection and soft body/rigid body dynamics in gaming will be applied to building 3D blast movement models — which will predict where blasted materials will land and distinguish between ore and waste. Predictive blast fragmentation models used in the past have typically been either numerical or empirical, [mining engineer Alan Cocker] said. Numerical models such as discrete element method, he noted, are onerous to configure and demanding of resources — both computing and human — and are generally not appropriate for operational use at mines. 'The problem with empirical models, by contrast, is that they tend to operate at a scale too coarse to give results useful for optimizations,' he added, noting typical Kuz-Ram-based fragmentation models (PDF) (widely used to estimate fragmentation from blasting) assume homogeneous geology (the same type of materials) throughout a blast."
Space

New Insights Help Shed Light On Star's Death That Created Kepler's Super Nova 13

skade88 writes "Wired has a good article that covers the origins of the white dwarf super nova Johannes Kepler observed in 1604. From the article: 'Up until now, it was unclear what lead to the star's explosion. New Chandra data suggests that, at least in the case of Kepler's remnant, the white dwarf grabbed material from its companion star. The disk-shaped structure seen near the center suggests that the supernova explosion hit a ring of gas and dust that would have formed, like water circling a drain, as the white dwarf sucked material away from its neighbor. In addition, magnesium is not an element formed in great abundances during Type 1a supernovas, suggesting it came from the companion star. Whether or not Kepler's supernova is a typical case remains to be seen. '"
Image

Book Review: Sams Teach Yourself HTML5 Mobile Application Development Screenshot-sm 44

Michael J. Ross writes "The last few years have seen the emergence of several significant advances in web technologies, including HTML5 and CSS3 — all impacting the development of traditional and mobile-centric web sites. In turn, various technical book publishers have released titles addressing one or more of these technologies. While one book may focus on HTML5 and the new JavaScript APIs, another might include extensive coverage of CSS3, with little mention of JavaScript. A recent title, Sams Teach Yourself HTML5 Mobile Application Development in 24 Hours, focuses on some of the more commonly employed elements introduced with HTML5, and how they can be used for creating mobile sites and applications." Read below for the rest of Michael's review.
Image

Book Review: Build Mobile Websites and Apps For Smart Devices Screenshot-sm 18

Michael J. Ross writes "With the proliferation of handheld devices that allow access to the Web, more business owners and other technology decision-makers are demanding that their organizations' websites be fully accessible on those devices, and even be repackaged as new web-based applications. But designers and developers who may be quite proficient in making non-mobile websites and web apps, can feel uncertain as to how to craft those products, or even where to start the process of learning how to do so. Recently, several books have been published to address this need, including Build Mobile Websites and Apps for Smart Devices, authored by Earle Castledine, Myles Eftos, and Max Wheeler." Read on for the rest of Michael's review
Science

Russian Team Prepares To Penetrate Lake Vostok 237

Lanxon writes "Lake Vostok, which has been sealed off from the world for 14 million years, is about to be penetrated by a Russian drill bit. The lake, which lies four kilometers below the icy surface of Antarctica, is unique in that it's been completely isolated from the other 150 subglacial lakes on the continent for such a long time. It's also oligotropic, meaning that it's supersaturated with oxygen — levels of the element are 50 times higher than those found in most typical freshwater lakes."
Image

Front End Drupal Screenshot-sm 68

Michael J. Ross writes "Content management systems (CMSs) are created largely by Web developers using back-end programming languages (such as PHP, by far the most common choice). The free CMSs are built as open source projects, by volunteers who have many demands on their time. As a result of both of these competing factors, far less time is devoted to the front-end aspects of these CMSs. In turn, the "themes" that define the appearance of a CMS-based website are typically substandard, in the eyes of many Web designers and, most likely, countless users of those sites. This criticism has been leveled even against Drupal, although the situation is improving. A new book, Front End Drupal: Designing, Theming, Scripting, is intended to help Drupal designers everywhere speed up that process of improvement." Read on for the rest of Michael's review.
Image

Universal Design for Web Applications Screenshot-sm 85

Michael J. Ross writes "Two decades ago, Web usage was limited to a single individual (Sir Tim Berners-Lee) using the only browser in existence (WorldWideWeb) running on a single platform (a NeXT Computer). Nowadays, billions of people access the Web daily, with the ability to choose from over a dozen browsers running on desktop computers, laptops, and a variety of mobile devices, such as cell phones. The number of possible combinations is growing rapidly, and makes it increasingly difficult for Web designers and developers to craft their sites so as to be universally accessible. This is particularly true when accounting for Web users with physical and cognitive disabilities — especially if they do not have access to assistive technologies. The challenges and solutions for anyone creating an accessible website are addressed in Universal Design for Web Applications, authored by Wendy Chisholm and Matt May." Keep reading for the rest of Michael and Laura's review.
XBox (Games)

A Morning With Microsoft Games 42

For the most part, Tuesday offered insights into independent games, and their growing influence in the games industry. Tuesday was also, for at least part of the day, a chance to get caught up on upcoming offerings from Microsoft Game Studios. Though MGS doesn't have a keynote at this year's Game Developer's Conference, representatives from several of the company's first and third party studios were on hand to demonstrate the future of Microsoft gaming. I had the chance to sit in on demos for Mass Effect and Shadowrun. Additionally, Peter Molyneux was there to offer up a very unusual slice of gameplay from Fable 2: an adventurer and his dog. Read on for my impressions of these anticipated titles.

New Super Mario Bros. Review 248

In the "everything old is new again" spirit of the 21st century, there have been many bad remakes, remixes, and 'reinvisionings'. The gaming industry is especially guilty, with endless sequels and a lack of imagination being oft-discussed elements at developer get-togethers. Despite all this, it does appear you can go home again. Nintendo has competently revived the series that made it a household name in the U.S., with New Super Mario Bros.. A classic 2D platformer with plenty of new tricks, Mario comes bounding to the DS with a focus on what he does best. New Super Mario Bros. is not going to make you rethink what is possible in a game; It's not going to make you cry or change your life. It will, however, make you smile. Read on for my impressions of the pudgy plumber's newest adventure.

Generic Dungeons, Universal Dragons 241

It's been about six months since we took the pen and paper gaming industry's temperature. There have been some important product releases since November, many of them well worth looking at. Steve Jackson Games continues to release books for its Fourth Edition of GURPS, and Wizards of the Coast works to expand the appeal of both the core Dungeons and Dragons (D&D) setting and the Eberron campaign world. Read on for some highlights from the world of tabletop gaming.

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