Ben Sisario, American author, academic, and journalist who covers the music industry for The New York Times, shares why he still likes to list to compact discs: I try to keep an eye on all the major platforms out there, which means regularly poking around on about a dozen apps. My go-to sources are Spotify, SoundCloud, Bandcamp and Mixcloud, which has excellent D.J.-style mixes and to me feels more human than most. At home I have a Sonos Play:5 speaker, which plays streaming music and podcasts, and is a piece of cake to use. I also have Google Chromecast Audio, a little plug-in device (now discontinued) that allows me to send high-fidelity streams to my stereo. It sounds better that way, but it's not nearly as easy to use as the Sonos. To be honest, my preferred way to listen to music is on CD, as unfashionable as that might be. You push a button, the music plays, and then it's over -- no ads, no privacy terrors, no algorithms! Do you share the same sentiment as Sisario, or have you gone all in on music streaming? Why or why not?

Slashdot reader schwit1 shares a report from USA Today discussing a new book from famed astronautical engineer Bob Zubrin, who makes the case for why we should go to space -- not only for the knowledge and challenge, but to "ensure our survival and protect our freedom." Among the reasons why he thinks we need to spread out through the Solar System (and perhaps beyond): For the Knowledge: We know little about the universe, despite our conceit that we have things figured out. The farther we go, the more new things we will encounter, and the more our knowledge and understanding will expand.

For the Challenge: Zubrin looks at the way the Age of Exploration rejuvenated a stagnant Europe at the beginning of the 16th Century, and the way the American frontier imparted a dynamism to American culture that, since that frontier's closing, seems to have faded. New frontiers, with their array of opportunities and challenges, make an excellent antidote to stagnation, aristocracy and zero-sum thinking.

For Our Survival: Last week saw reports that an 1100-foot asteroid will pass within 13,000 miles of earth -- that's closer than many satellites -- in less than a decade. (The famous Barringer Meteor Crater in Arizona was made by an asteroid a fraction that size, and exploded with the force of more than 100 Nagasaki-sized atomic bombs). These asteroid encounters turn out to be much more common than once thought, and the likelihood of a strike is high enough that authorities are rehearsing a response. With a strong space economy, deflecting dangerous asteroids will be easy. Without it, we're just sitting ducks in a cosmic shooting gallery.

For Our Freedom: Earth is crowded, and governments (and corporations like Facebook) are getting ever more intrusive as privacy grows every more scarce. The danger of a global tyranny backed by modern technology of surveillance and control is growing. Getting a sizable chunk of humanity off the planet and far enough away -- the Moon, Mars, even the asteroid belt -- makes it less likely that such a tyranny could become all-encompassing.

"As Africans get richer, they will eat more meat and live longer, healthier lives," writes the Economist.

PolygamousRanchKid shares their report: In the decade to 2017 global meat consumption rose by an average of 1.9% a year and fresh dairy consumption by 2.1% -- both about twice as fast as population growth. Almost four-fifths of all agricultural land is dedicated to feeding livestock, if you count not just pasture but also cropland used to grow animal feed... It is largely through eating more pork and dairy that Chinese diets have come to resemble Western ones, rich in protein and fat. And it is mostly because their diets have altered that Chinese people have changed shape. The average 12-year-old urban boy was nine centimetres taller in 2010 than in 1985, the average girl seven centimetres taller. Boys in particular have also grown fatter...

The shift from pork to beef in the world's most populous country is bad news for the environment. Because pigs require no pasture, and are efficient at converting feed into flesh, pork is among the greenest of meats. Cattle are usually much less efficient, although they can be farmed in different ways. And because cows are ruminants, they belch methane, a powerful greenhouse gas. A study of American farm data in 2014 estimated that, calorie for calorie, beef production requires three times as much animal feed as pork production and produces almost five times as much greenhouse gases. Other estimates suggest it uses two and a half times as much water...

Sub-Saharan Africans currently have tiny carbon footprints because they use so little energy -- excluding South Africa, the entire continent produces about as much electricity as France. The armies of cattle, goats and sheep will raise Africans' collective contribution to global climate change, though not to near Western or Chinese levels. People will probably become healthier, though. Many African children are stunted (notably small for their age) partly because they do not get enough micronutrients such as Vitamin A. Iron deficiency is startlingly common. In Senegal a health survey in 2017 found that 42% of young children and 14% of women are moderately or severely anaemic. Poor nutrition stunts brains as well as bodies. Animal products are excellent sources of essential vitamins and minerals. Studies in several developing countries have shown that giving milk to schoolchildren makes them taller. Recent research in rural western Kenya found that children who regularly ate eggs grew 5% faster than children who did not; cow's milk had a smaller effect.
A meat industry spokesman from the U.S. Meat Export Federation tells the Economist that "Unlike decades ago, there are no longer large chunks of the population out there that are not yet eating meat."

A cloned dog, believed to be the first of the kind in China, has started training in Yunnan Province in a program to reduce the cost and time needed for training police dogs. From a report: Kunxun, a female of the Kunming wolfdog breed, was born on Dec. 19 last year in Beijing and arrived on March 5 for training at the Kunming Police Dog Base of the Ministry of Public Security. She was cloned from a 7-year-old female dog, known as Huahuangma, that has been in service in the city of Pu'er, Yunnan, by Sinogene, a Beijing-based biotechnology firm. The cloning is part of the ministry's research program.

Huahuangma played important roles in helping detectives with dozens of murder investigations, and was accredited the first-level merit in 2016, said Wan Jiusheng, an officer who is responsible for training Kunxun. Huahuangma's outstanding abilities as a police dog made her an eligible donor of genes, Wan said. "It takes four to five years to train a meritorious dog such as Huahuangma, and costs hundreds of thousands of yuan," he said. Police dogs serving in real tasks are not usually used for breeding. The cloning program helps researchers copy their excellent genes and reduces the time and costs needed for training, researchers familiar with the program said.

Reader Beeftopia shares a report: Research published in a major medical journal concludes that a parachute is no more effective than an empty backpack at protecting you from harm if you have to jump from an aircraft. But before you leap to any rash conclusions, you had better hear the whole story. The gold standard for medical research is a study that randomly assigns volunteers to try an intervention or to go without one and be part of a control group. For some reason, nobody has ever done a randomized controlled trial of parachutes. In fact, medical researchers often use the parachute example when they argue they don't need to do a study because they're so sure they already know something works. Cardiologist Robert Yeh, an associate professor at Harvard Medical School and attending physician at Beth Israel Deaconess Medical Center, got a wicked idea one day. He and his colleagues would actually attempt the parachute study to make a few choice points about the potential pitfalls of research shortcuts.

They started by talking to their seatmates on airliners. [...] In all, 23 people agreed to be randomly given either a backpack or a parachute and then to jump from a biplane on Martha's Vineyard in Massachusetts or from a helicopter in Michigan. Relying on two locations and only two kinds of aircraft gave the researchers quite a skewed sample. But this sort of problem crops up frequently in studies, which was part of the point Yeh and his team were trying to make. Still, photos taken during the experiment show the volunteers were only too happy to take part. The drop in the study was about 2 feet total, because the biplane and helicopter were parked. Nobody suffered any injuries. Surprise, surprise. So it's technically true that parachutes offered no better protection for these jumpers than the backpacks.

What kind of person racks up debts and doesn't pay them? Your credit score is an attempt to answer this question. A report elaborates: These important three-digit numbers summarize our statistical risk for lenders. The allure of the credit score is its clarity: It cuts through appearances and converts our messy lives into an easily readable metric. The difference between a score of 750 and 600 is obvious. One is an excellent bet for a lender to make; the other is not. On balance, credit scores have made borrowing more convenient, and fairer, for consumers. But the U.S. Department of Homeland Security wants to use credit scores for an entirely different purpose, one they were never built for and are not suited for.

The agency charged with safeguarding the nation would like to make immigrants submit their credit scores when applying for legal resident status. The new rule, contained in a proposal signed by DHS Secretary Kirstjen Nielsen, is designed to help immigration officers identify applicants likely to become a "public charge" -- that is, a person primarily dependent on government assistance for food, housing, or medical care. According to the proposal, credit scores and other financial records (including credit reports, the comprehensive individual files from which credit scores are generated) would be reviewed to predict an applicant's chances of "self-sufficiency." The proposal is open for public comment until Dec. 10. Setting aside the proposal's moral abdication when it comes to the needy, we should be troubled by another injustice: its abuse of personal metrics.

brindafella writes: Veterinary scientists from Viena have shown that Goffin's cockatoos can do an excellent job of remaking cardboard into tools to get rewards. This follows on from earlier experiments with the New Caledonian crow that can select tools for its purposes. So, birds are definitely not "bird-brained." "[The study] tells us that the cockatoos' mind is highly flexible and that they can modify their solution to a problem in order to save effort," said Alice Auersperg, a cognitive biologist at the University of Veterinary Medicine Vienna and lead author of the paper.

The Australian Broadcast Company explains how the study was conducted: "[S]ix trained birds were given a piece of cardboard and placed in front of a cage that had food accessible through a small hole, but placed at different distances away. The birds used their beak to cut strips of cardboard they then used to reach the food. Importantly, when the food was close, the birds made a shorter strip. When it was far away, they made a longer strip. But when the researchers made the hole in the cage smaller, only one of the birds was able to fashion their cardboard tool to be narrow enough to fit through the hole. The successful bird was the only female in the group, and the researchers think she was able to do this because her beak was small enough to make a narrow tool."

An anonymous reader shares a report: VR was supposed to be a revolution, with companies like Oculus pioneering a whole new way for gamers and non-gamers alike to be immersed in digital environments -- but that excitement has markedly cooled. The media has gone through several cycles of fawning, optimistic prognostication, and... wishful thinking? -- but for all the hype we have very little consumer interest to show for it. Oculus sold off to Facebook and has become little more than a parlor trick Mark Zuckerberg shows off at every F8 event. As Ben Thompson recently noted, the bet on the company is an awkward fit for Facebook that strays from Zuckerberg's strengths in several ways.

Oculus founder Palmer Luckey is now tooling around on right wing defense projects, while co-founder Brendan Iribe has just left the company amid rumors of future headsets being shelved. Several prominent studios have shut down or ceased VR efforts, including Viacom and AltspaceVR, and Microsoft is a steadfast "no" when it comes to dipping its toes in the water via the Xbox. Sony has boasted about sales of the PSVR hitting 3 million in two years, but there are 82 million PS4 units in the hands of consumers (and keep in mind that Microsoft sold 35 million Kinects but still discontinued the product). With cumbersome hardware (which, let's be honest, looks really stupid to most people), absurd PC requirements, and nearly no AAA titles to lure the curious into the world of VR, it's becoming increasingly unlikely that we'll see a major shift to virtual reality any time soon.

Also worth noting: if you're looking to Magic Leap for a kind of bridge to the future with its AR efforts, don't get too wound up. Brian Merchant's excellent and detailed feature story for Gizmodo on the company's struggles to get around the same hardware, software, and consumer adoption issues that plague VR make it clear there is no easy answer in this space. In my opinion -- as someone who watched this new generation of virtual reality emerge from the earliest days, and was one of its biggest fans -- VR adoption will only happen when the barrier to entry is akin to slipping on a pair of sunglasses (and even then it's no sure thing). Most people don't want to wear a bulky headset, even in private, there's no must have "killer app" for VR, and no one has made a simple plug-and-play option that lets a novice user engage casually. Everyone I know who's tried a VR headset is blown away by the experience, but no one really wants to go deep on it except for what amounts to a rounding-error percentage of enthusiasts. Further reading: 'We Expected VR To Be Two To Three Times as Big', Says CCP Games CEO.

As Apple continues to fight independent repair, Motorola has partnered with iFixit and pledged to support the right to repair movement. From a report: It is excellent news that Motorola has decided to make it as easy as possible for you to repair your phone. The company announced that it would begin selling replacement parts for all of its recent phones to customers, and it has partnered with iFixit to sell repair kits for phones like the Moto X, Z, G4, G5, and Droid Turbo 2. The kits come with tools, genuine Motorola-branded replacement parts, and instructions on how to fix your device. iFixit is currently selling replacement batteries, screens, and digitizer assemblies. "Motorola is setting an example for major manufacturers to embrace a more open attitude towards repair," iFixit wrote in a blog post announcing the partnership. "For fixers like us, this partnership is representative of a broader movement in support of our Right to Repair. It's proof that OEM manufacturers and independent repair can co-exist. Big business and social responsibility, and innovation and sustainability, don't need to be mutually exclusive."

An anonymous reader quotes Space.com: If you're a meteor enthusiast, the year 2018 has been very kind to you. This past summer, the annual Perseid meteor shower reached its peak the day after a new moon, ensuring that no moonlight would hinder those spotting celestial streakers. And looking ahead to December, the Geminid meteor shower, the most prolific of all of the annual displays, will reach its peak when an almost-first-quarter moon is setting during the late evening hours. This will make for excellent viewing conditions. And coming almost midway between these two popular showers, this weekend brings one of the most reliable meteor events. A sort of lesser version of the summertime Perseids, the Orionid meteor shower should reach its peak activity early on Sunday morning...

[Y]ou should wait until around 2 a.m. in your local time zone, when Orion will have climbed well above the horizon. And just prior to the break of dawn, at around 5 a.m., Orion will appear highest in the sky toward the south. That's when Orionid viewing will be at its best... Past studies have demonstrated that about half of all observed Orionids leave trails that last longer than those of other meteors of equivalent brightness. This is undoubtedly connected to the makeup of Halley's Comet; the object produces meteors that start burning up very high in our atmosphere, at around 80 miles (130 km) up, possibly because they are composed of lightweight material. This suggests they came from the diffuse surface of Halley's nucleus as opposed to its core.

MojoKid writes: Intel lifted the embargo veil today on performance results for its new Core i9-9900K 9th Gen 8-core processor. Intel claims the chip is "the best CPU for gaming" due to its high clock speeds and monolithic 8-core/16-thread design that has beefier cache memory (now 16MB). The chip also has 16-lanes of on-chip PCIe connectivity, official support for dual-channel memory up to DDR4-2666, and a 95 watt TDP. Intel also introduced two other 9th Gen chips today. Intel's Core i7-9700K is also an 8-core processor, but lacks HyperThreading, is clocked slightly lower, and has 4MB of smart cache disabled (12MB total). The Core i5-9600K takes things down to 6 cores / 6 threads, with a higher base clock, but lower boost clock and only 9MB of smart cache. In benchmark testing, the high-end Core i9-9900K's combination of Intel's latest microarchitecture and boost frequencies of up to 5GHz resulted in the best single-threaded performance seen from a desktop processor to date. The chip's 8-cores and 16-threads, larger cache, and higher clocks also resulted in some excellent multi-threaded scores that came close to catching some of Intel's many-core Core X HEDT processors in a few tests. The Core i9-9900K is a very fast processor, but it is also priced as such at $488 in 1KU quantities. That makes it about $185 to $225 pricier than AMD's Ryzen 7 2700X, which is currently selling for about $304 and performs within 3% to 12% of Intel's 8-core chip, depending on workload type.

Penelope Wang, writing for Consumer Reports: If you are investing in stocks, bonds, or mutual funds, you have a wide range of options to help manage your portfolio -- everything from traditional brokerages to mutual fund companies to online financial firms. But as consumers search for an investment company, many pay little attention to the fees they're being charged, according to a just-released Consumer Reports survey of more than 46,000 CR members. Four out of 10 surveyed said they weren't sure what they paid in fees. And of those who knew the costs, only 60 percent rated their investment company in our survey as Excellent or Very Good on the amount charged.

"Hidden and confusing fees are proliferating across the marketplace, making it hard for consumers to know what they're getting for their money, and to comparison shop across providers," says Anna Laitin, director of financial policy at Consumers Union, the advocacy division of Consumer Reports. "It is concerning that so many investors don't know how much they are paying in fees and that many of those who do understand the fees don't appear to think they are getting their money's worth," she says.

Linus Torvalds oversees every line of code added to the Linux kernel, but in recent years the male-dominated community has become increasingly divided, reports BBC. Rows about sexism and rudeness led to the creation of a Code of Conflict (CoC) in 2015 which was short -- simply recommending people "be excellent to each other." That has now been replaced by a more detailed Code of Conduct -- which retains the acronym, but attempts to be more inclusive and eliminate insulting and derogatory comments and behaviour. Reader sinij writes: Recently Linux Community adopted a new controversial Code of Conduct authored by Contributor Covenant also known for authoring the Post-Meritocracy Manifesto. In an exclusive email interview with the BBC, Mr Torvalds shared his thoughts on his decision to temporarily step aside, the controversy behind the CoC, and the defects of the community he set up. His thoughts on CoC: The advantage of concentrating on technology is that you can have some mostly objective measures, and some basis for agreement, and you can have a very nice and healthy community around it all. I really am motivated by the technology, but the community around Linux has been a big positive too. But there are very tangible and immediate common goals in any technical project like Linux, and while there is occasionally disagreement about how to solve some particular issue, there is a very real cohesive force in that common goal of improving the project. And even when there are disagreements, people in the end often have fairly clear and objective measures of what is better. Code that is faster, simpler, or handles more cases naturally is just objectively 'better', without people really having to argue too much about it.

In contrast, the arguments about behaviour never seem to end up having a common goal. Except, in some sense, the argument itself. Have you read the Twitter feeds and other things by the people who seem to care more about the non-technical side? I think your 'hyped stories' is about as polite as you can put it. It's a morass of nastiness. Instead of a 'common goal', you end up with horrible fighting between different 'in-groups'. It's very polarising, and both sides love egging the other side on. It's not even a 'discussion', it's just people shouting at each other. That's actually the reason I for the longest time did not want to be involved with the whole CoC discussion in the first place. That whole subject seems to very easily just devolve and become unproductive. And I found a lot of the people who pushed for a CoC and criticised me for cursing to be hypocritical and pointless. I could easily point you to various tweet storms by people who criticise my 'white cis male' behaviour, while at the same time cursing more than I ever do.

So that's my excuse for dismissing a lot of the politically correct concerns for years. I felt it wasn't worth it. Anybody who uses the words 'white cis male privilege' was simply not worth my time even talking to, I felt. "And I'm still not apologising for my gender or the colour of my skin, or the fact that I happen to have the common sexual orientation. What changed? Maybe it was me, but I was also made very aware of some of the behaviour of the 'other' side in the discussion. Because I may have my reservations about excessive political correctness, but honestly, I absolutely do not want to be seen as being in the same camp as the low-life scum on the internet that think it's OK to be a white nationalist Nazi, and have some truly nasty misogynistic, homophobic or transphobic behaviour. And those people were complaining about too much political correctness too, and in the process just making my public stance look bad. And don't get me wrong, please -- I'm not making excuses for some of my own rather strong language. But I do claim that it never ever was any of that kind of nastiness. I got upset with bad code, and people who made excuses for it, and used some pretty strong language in the process. Not good behaviour, but not the racist/etc claptrap some people spout. So in the end, my 'I really don't want to be too PC' stance simply became untenable. Partly because you definitely can find some emails from me that were simply completely unacceptable, and I need to fix that going forward. But to a large degree also because I don't want to be associated with a lot of the people who complain about excessive political correctness.

A social media post from Anders G da Silva, who accused Apple of deleting movies he had purchased from iTunes, went viral earlier this month. There is more to that story, of course. In a statement to CNET, Apple explained that da Silva had purchased movies while living in Australia, with his iTunes region set to "Australia." Then he moved to Canada, and found that the movies were no longer available for download -- due, no doubt, to licensing restrictions, including restrictions on Apple itself. While his local copies of the movies were not deleted, they were deleted from his cloud library. Apple said the company had shared a workaround with da Silva to make it easier for him to download his movies again. Public Knowledge posted a story Tuesday to weigh in on the subject, especially since today is International Day Against DRM. From the post: To that rare breed of person who carefully reads terms of service and keeps multiple, meticulous backups of important files, da Silva should have expected that his ability to access movies he thought he'd purchased might be cut off because he'd moved from one Commonwealth country to another. Just keep playing your original file! But DRM makes this an unreasonable demand. First, files with DRM are subject to break at any time. DRM systems are frequently updated, and often rely on phoning home to some server to verify that they can still be played. Some technological or business change may have turned the most carefully backed-up and preserved digital file into just a blob of unreadable encrypted bits.

Second, even if they are still playable, files with DRM are not very portable, and they might not fit in with modern workflows. To stay with the Apple and iTunes example, the old-fashioned way to watch a movie purchased from the iTunes Store would be to download it in the iTunes desktop app, and then watch it there, sync it to a portable device, or keep iTunes running as a "server" in your home where it can be streamed to devices such as the Apple TV. But this is just not how things are done anymore. To watch an iTunes movie on an Apple TV, you stream or download it from Apple's servers. To watch an iTunes movie on an iPhone, same thing. (And because this is the closed-off ecosystem of DRM'd iTunes movies, if you want to watch your movie on a Roku or an Android phone, you're just out of luck.)

[...] My takeaway is that, if a seller of DRM'd digital media uses words like "purchase" and "buy," they have at a minimum an obligation to continue to provide additional downloads of that media, in perpetuity. Fine print aside, without that, people simply aren't getting what they think they're getting for their money, and words like "rent" and "borrow" are more appropriate. Of course, there is good reason to think that even then people are not likely to fully understand that "buying" something in the digital world is not the same as buying something in the physical world, and more ambitious measures may be required to ensure that people can still own personal property in the digital marketplace. See the excellent work of Aaron Perzanowski and Jason Schultz on this point. But the bare minimum of "owning" a movie would seem to be the continued ability to actually watch it.

Long-time reader theodp writes: Some education watchers have adopted a wait-and-see response to Jeff Bezos' two-pronged $2B pledge to aid the homeless and to establish preschools for low-income children (Mark Zuckerberg's The Primary School interestingly prefers 'em even younger, noting "we admit students at or before birth"). Not so Audrey Watters, who presents her misgivings in a blog post, titled, "It's Like Amazon, But for Preschool" (tl;dr: read her URL), wondering what a chain of preschools that "use the same set of principles that have driven Amazon" might look like, considering Amazon's own labor practices. She asks, "Are private preschool chains really the path we want to pursue, particularly if we believe that access to excellent early childhood education is so incredibly crucial? Can the gig economy and the algorithm ever provide high quality preschool? For all the flaws in the public school system, it's important to remember: there is no accountability in billionaires' educational philanthropy." Sharing Watters' concerns is author Anand Giridharadas, who argues in his new book Winners Take All that the wealthy pursue social change without uprooting the systems that produce inequality. Bezos has a "a stark opportunity to be a traitor to his class, to actually think about giving in ways that transform the system atop which he stands," Giridharadas said. "It is great to be a winner who gives back. It is even better to be a winner who thinks about how winners can take less."

RoccamOccam writes: WebRender, an experimental GPU-based renderer for web content, written in Rust, is now enabled by default for Firefox Nightly users on desktop Windows 10 with Nvidia GPUs. The announcement was made on the mailing list.

Lin Clark provides an excellent overview of WebRender and, states, "with WebRender, we want apps to run at a silky smooth 60 frames per second (FPS) or better no matter how big the display is or how much of the page is changing from frame to frame. And it works. Pages that chug along at 15 FPS in Chrome or today's Firefox run at 60 FPS with WebRender.

In describing the WebRender approach Clark, asks, "what if we removed this boundary between painting and compositing and just went back to painting every pixel on every frame? This may sound like a ridiculous idea, but it actually has some precedent. Modern day video games repaint every pixel, and they maintain 60 frames per second more reliably than browsers do. And they do it in an unexpected way instead of creating these invalidation rectangles and layers to minimize what they need to paint, they just repaint the whole screen."

An anonymous reader quotes a report from Gizmodo: A team of scientists in China are reporting that they have now performed the most precise measurement of gravity's strength yet by measuring G, the Newtonian or universal gravitational constant. G relates the gravitational attraction between two objects to their masses and the distance between them. The new measurement is important both for high-powered atomic clocks as well as the study of the universe, earth science, or any kind of science that relies on gravity in some way. The values measured by the team "have the smallest uncertainties reported until now," according to the paper published in Nature.

In the new study, scientists performed two independent calculations of G using a pair of pendulums in a vacuum, one pendulum setup for each test. Each pendulum swings back and forth between a pair of massive objects whose positions can be adjusted. The pendulums measure the force of gravity in two ways. First, they measure the difference between how quickly the pendulum swings to the "near," or parallel position, versus the "far," or horizontal position. They also measure how the direction of the pendulum's swing changes based on the pull of the test masses. The researchers ended up measuring 6.674184 and 6.674484 hundred billionths (10-11) for the time-of-swinging and angular acceleration methods, respectively. These measures were both very precise, but are still different from one another for unknown reasons. This might have had something to do with the string used for the pendulum. The paper's reviewer, Stephan Schlamminger from the National Institute of Standards and Technology, wrote in a commentary: "Li et al. carried out their experiments with great care and gave a detailed description of their work. The study is an example of excellent craftsmanship in precision measurements. However, the true value of G remains unclear. Various determinations of G that have been made over the past 40 years have a wide spread of values. Although some of the individual relative uncertainties are of the order of 10 parts per million, the difference between the smallest and largest values is about 500 parts per million."

The processor that makes your laptop or cell phone work was fabricated using quartz from this obscure Appalachian backwater. From a report: Alex Glover is a recently retired geologist who has spent decades hunting for valuable minerals in the hillsides and hollows of the Appalachian Mountains that surround Spruce Pine, North Carolina. Spruce Pine is not a wealthy place. Its downtown consists of a somnambulant train station across the street from a couple of blocks of two-story brick buildings, including a long-closed movie theater and several empty storefronts. The wooded mountains surrounding it, though, are rich in all kinds of desirable rocks, some valued for their industrial uses, some for their pure prettiness. But it's the mineral in Glover's bag -- snowy white grains, soft as powdered sugar -- that is by far the most important these days. It's quartz, but not just any quartz. Spruce Pine, it turns out, is the source of the purest natural quartz -- a species of pristine sand -- ever found on Earth.

This ultra-elite deposit of silicon dioxide particles plays a key role in manufacturing the silicon used to make computer chips. In fact, there's an excellent chance the chip that makes your laptop or cell phone work was made using sand from this obscure Appalachian backwater. "It's a billion-dollar industry here," Glover says with a hooting laugh. "Can't tell by driving through here. You'd never know it." In the 21st century, sand has become more important than ever, and in more ways than ever. Most of the world's sand grains are composed of quartz, which is a form of silicon dioxide, also known as silica. High-purity silicon dioxide particles are the essential raw materials from which we make computer chips, fiber-optic cables, and other high-tech hardware -- the physical components on which the virtual world runs.

Smartphone camera sensors and lenses have to operate in a very tight space, but they continue to close the gap on full-size digital cameras year after year. Sony's new IMX586 sensor boasts a 48-megapixel resolution, the highest yet for a mobile sensor, and should be coming to a phone near you soon. From a report: That increased resolution shrinks the pixel size down to 0.8 microns, which would usually lead to lower sensitivity and poor light collection. However, thanks to some smart technology called a Quad Bayer array -- where neighboring pixels are intelligently combined -- Sony says the effective pixel size is 1.6 microns. The bigger the pixel size, the better the light capture and low-light performance. In comparison, the Google Pixel 2 -- one of the best photo-taking phones on the market right now -- has a camera with a 1.4-micron pixel size. On paper, that means Sony has managed to produce a sensor that combines a huge amount of detail with excellent light capture and low noise levels as well. We'll have to wait until the sensor is actually on the market to know for sure, but the signs are good.

Long-time Slashdot reader Qbertino does PHP for a living, but says he's growing "increasingly frustrated with the ignorant and clueless in the vincinity of PHP." Crappy code and baaaaad application setups is one thing, but people refusing to fix them or simply not even understanding the broader implications of bad applications or attempting SEO with gadgets while refusing to fix 3.5 MB-per-pagecall are just minor tidbits in a history of increasingly unnerving run-ins with knuckledragers in the "web agency" camp...

Will I leave the larger part of this backwards stuff behind if I move to another server-side programming language such as Java or Kotlin for professional work in the broader web area? Do I have a chance to do quality work on quality projects using PHP, or are those slim compare to other programming languages? In short, should I ditch PHP?
"I think .NET is a much cleaner language to work in with Microsoft's excellent Visual Studio IDE and debugger," argues Slashdot reader Agret , adding "there are many large projects in my city hiring .NET developers and being a strongly typed language the code quality is generally better than PHP."

But what's been your experience? And would a frustrated developer find more quality projects by ditching PHP?