By msmash from Slashdot's unravelling-mysteries department
The Great Red Spot has been a fixture of Jupiter 's cloudy visage for centuries and is among the most recognizable features in the solar system. But it won't always be there. In fact, the Great Red Spot is shrinking, and recently, news stories reported that it could vanish within the next 10 or 20 years . From a report: Older observations, from the late 1800s, suggest the storm once spanned more than 30 degrees in longitude and was more of a "Great Red Sausage," says Glenn Orton of NASA's Jet Propulsion Laboratory. But the storm's shape is changing, most significantly in width, and as time marches on it's becoming less oval and more circular. Way back when, the storm stretched more than 25,000 miles across. When the Voyager spacecraft flew by in the 1970s, scientists estimated that the Spot was just 14,500 miles wide. In 2014, a Hubble Space Telescope observation put the Spot at just 10,250 miles across, and by last spring, it spanned just 10,140 miles. So when will it disappear entirely? Truth is, scientists have no idea. But if you measure the rate at which the Great Red Spot has been shrinking, and extrapolate linearly from that, it looks like the spot will vanish completely in about 70 years, says Amy Simon of NASA's Goddard Space Flight Center. Problem is, "we know for certain it doesn't work like that at all," she says.Read Replies (0)
By BeauHD from Slashdot's new-and-improved department
Samsung has taken the wraps off of its latest flagship, the Galaxy S9, at Mobile World Congress in Barcelona, Spain. The S9 features a familiar body with an upgraded camera, relocated fingerprint scanner, and newer processor. As usual, there are two versions: the Galaxy S9 and Galaxy S9+. Ars Technica reports: The S9 is one of the first phones announced with the new 2.8Ghz Snapdragon 845 SoC in the US, while the international version will most likely get an Exynos 9810. Qualcomm is promising a 25-percent faster CPU and 30-percent faster graphics compared to the Snapdragon 835. The rest of the base S9 specs look a lot like last year, with 4GB of RAM, 64GB of storage, a 3000mah battery, and a 5.8-inch 2960x1440 OLED display. The S9+ gets the usual bigger screen (6.2 inches @ 2960x1440) and bigger battery (3500mAh), but one improvement over last year is a RAM bump to 6GB. Neither RAM option is really outstanding for a phone this expensive, considering the much cheaper OnePlus 5T will give you 6GB and 8GB options for RAM at a much lower price. Both S9 models have headphone jacks, MicroSD slots, a new stereo speaker setup (one bottom firing, one doubles as the earpiece), IP68 dust and water resistance, wireless charging, and ship with Android 8.0 Oreo.
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By BeauHD from Slashdot's downward-spiral department
According to Gartner, global sales of smartphones have declined year-on-year for the first time since the research company started tracking the global smartphone market in 2004. "Global sales of smartphones to end users totaled nearly 408 million units in the fourth quarter of 2017, a 5.6 percent decline over the fourth quarter of 2016," reports Gartner. The Register reports: In Gartner's Q4 sales stats, Samsung maintained a narrow lead in global volume shipments of smartphones -- but every major (top five) vendor outside of those based in China saw unit shipments slip. Several major factors caused the market shrinkage, said Anshul Gupta, research director at Gartner. "First, upgrades from feature phones to smartphones have slowed right down due to a lack of quality 'ultra-low-cost' smartphones and users preferring to buy quality feature phones. Second, replacement smartphone users are choosing quality models and keeping them longer, lengthening the replacement cycle of smartphones. Moreover, while demand for high quality, 4G connectivity and better camera features remained strong, high expectations and few incremental benefits during replacement weakened smartphone sales," Gupta added. This is a characteristic of the emerging markets, where all the action is -- not mature markets like the UK or USA. Samsung leap-frogged Apple by virtue of its sales declining slower than the market average -- Sammy's numbers were 3.6 per cent to 74.02 million units.Read Replies (0)
By BeauHD from Slashdot's irony-at-its-finest department
schwit1 shares a report from The Truth About Cars: [T]he simple task of washing a self-driving car is far more complicated than one might expect, as anything other than meticulous hand washing a big no-no. Automated car washes could potentially dislodge expensive sensors, scratch them up, or leave behind soap residue or water spots that would affect a camera's ability to see. According to CNN, automakers and tech firms have come up with a myriad of solutions to this problem -- though a man with a rag and some water appears to be the most popular. Toyota, Aptiv, Drive.AI, May Mobility, and Uber have all said they use rubbing alcohol, water, or glass cleaner to manually wash the sensors, before carefully finishing the job with a microfiber cloth. While it's more than just a little ironic that these automated vehicles require gobs of attention and pampering from human hands just to function correctly, some companies are working on a way around it. General Motors' Cruise has said it will design and implement sensor-cleaning equipment in production vehicles.Read Replies (0)
By msmash from Slashdot's tough-choices department
When SpaceX's record-breaking Falcon Heavy rocket made its first test launch in early February , the craft didn't just hurl Elon Musk's shiny red roadster and spacesuit-clad mannequin to space. It had another, smaller payload, which at first glance seems much less impressive: a 1-inch-wide (2.5 centimeters) quartz disc with Isaac Asimov's "Foundation" trilogy encoded in laser-etched gratings . From a report: The famous science fiction series is only the beginning of the discs' planned contents. At a time when traditional hard drives are just breaking into the terabyte range, the quartz medium can hold up to 360 terabytes per disc. It also boasts a life span of 14 billion years. That's longer than the current age of the universe. This disc was symbolic; future devices will contain much more, and more useful, information. But the technology speaks to grander issues that humanity is now pondering: becoming a multiplanetary civilization, storing information for thousands or millions of years, and contacting and communicating with other intelligences (alien and Earthling). So how should we record our knowledge and experiences for posterity? How should we ensure that this information is understandable to civilizations that may be quite different from our own? And, most importantly, what should we say? Humans have faced challenges like these before. Ancient civilizations built monuments like the pyramids and left artifacts and writing, sometimes deliberately. Later researchers have used this material to try to piece together ancient worldviews. However, in the modern era, we've set our sights much further: from centuries to millennia, from one planet to interstellar space, and from one species to many.Read Replies (0)
By msmash from Slashdot's how-about-that department
From a blog post on MIT News Office: Veil would provide added protections to people using shared computers in offices, hotel business centers, or university computing centers, and it can be used in conjunction with existing private-browsing systems and with anonymity networks such as Tor, which was designed to protect the identity of web users living under repressive regimes. "Veil was motivated by all this research that was done previously in the security community that said, 'Private-browsing modes are leaky -- Here are 10 different ways that they leak,'" says Frank Wang, an MIT graduate student in electrical engineering and computer science and first author on the paper. "We asked, 'What is the fundamental problem?' And the fundamental problem is that [the browser] collects this information, and then the browser does its best effort to fix it. But at the end of the day, no matter what the browser's best effort is, it still collects it. We might as well not collect that information in the first place."Read Replies (0)
By msmash from Slashdot's shape-of-water department
In some places, taps have been dry for over a year. People bathe their children with bottled water. A group of women has taken over water distribution from the city authorities. The future feared by millions of people across the world has already arrived in Mexico City , BuzzFeed News reports. From the report: In certain areas, people say taps go dry for months. Angry civilians have blocked off highways and squared off with riot police, wresting control of water distribution from the government. "Crime affects us deeply but if you don't have water, you can't do anything," said Marisol Fierro, part of a group of women in charge of delivering water to neighbors. Across the ocean, authorities in South Africa talk about Day Zero, when Cape Town is set to run out of water and the city is forced to shut off its taps. It has made headlines around the world, as people watch on with bated breath. But here in Iztapalapa, a sprawling, drab Mexico City borough where nearly 2 million people live, that day has already arrived, offering a window into what the future may hold for millions of people when the taps run dry. Police officers are sometimes forced to guard water trucks, popular targets for kidnappers who sell their contents for hefty prices. In other cities, politicians might promise expanded broadband, better health care, or higher wages to win votes, but in Mexico City, mayoral hopefuls have made simple access to water central to their campaigns. Reserved and quiet, Emma Pantaleon seems an unlikely protagonist at the front lines of this daily battle. Pantaleon joins Fierro and other women -- housewives who juggle child-rearing, house chores, and part-time jobs -- gathering water requests from their neighbors, coordinating trucks' routes with local authorities, and riding along to ensure the operation runs smoothly. On a recent morning, she sat in the passenger seat of a water tanker as it revved its motor up a hill, dwarfing the dilapidated single-room houses along its path. When the driver swerved left and stepped on the brake, Pantaleon leaped out. It was a scene straight out of Mad Max: Fury Road. Pantaleon, 41, walked over to the nearest cinder block house and called out to its owner. As soon as Catalina Cortez opened the door, the driver and a helper marched in, pulling the truck's hose straight up to a plastic water storage tank taking up a third of the patio.Read Replies (0)
By EditorDavid from Slashdot's those-who-can't-do department
An anonymous reader writes:
I've been asked to put together a half-day workshop whose title is "Thinking Like a Programmer." The idea behind this is that within my institution (a university), we have a vast number of self-taught programmers who have never been taught "best practices" or anything about software engineering. This workshop's intention is to address this lack of formal training.
The question is, what should be covered in this workshop? If you have an idea -- that also has an example of best practice -- please share!
It's really two questions -- what "thinking like a programmer" topics should be covered, but also what examples should be used to illustrate best practices for the material. So leave your best thoughts in the comments.
How would you teach best practices for programmers?Read Replies (0)
By EditorDavid from Slashdot's patchy-patches department
Esther Schindler (Slashdot reader #16,185) writes that the Spectre and Meltdown vulnerabilities have become "a serious distraction" for sysadmins trying to apply patches and keep up with new fixes, sharing an HPE article described as "what other sysadmins have done so far, as well as their current plans and long-term strategy, not to mention how to communicate progress to management."
Everyone has applied patches. But that sounds ever so simple. Ron, an IT admin, summarizes the situation succinctly: "More like applied, applied another, removed, I think re-applied, I give up, and have no clue where I am anymore." That is, sysadmins are ready to apply patches -- when a patch exists. "I applied the patches for Meltdown but I am still waiting for Spectre patches from manufacturers," explains an IT pro named Nick... Vendors have released, pulled back, re-released, and re-pulled back patches, explains Chase, a network administrator. "Everyone is so concerned by this that they rushed code out without testing it enough, leading to what I've heard referred to as 'speculative reboots'..."
The confusion -- and rumored performance hits -- are causing some sysadmins to adopt a "watch carefully" and "wait and see" approach... "The problem is that the patches don't come at no cost in terms of performance. In fact, some patches have warnings about the potential side effects," says Sandra, who recently retired from 30 years of sysadmin work. "Projections of how badly performance will be affected range from 'You won't notice it' to 'significantly impacted.'" Plus, IT staff have to look into whether the patches themselves could break something. They're looking for vulnerabilities and running tests to evaluate how patched systems might break down or be open to other problems.
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By EditorDavid from Slashdot's minority-reports department
Long-time Slashdot reader Rei writes: Three weeks ago, on a party-line vote, the U.S. House Intelligence Committee voted to release a memo from committee chair and Trump transition team member Devin Nunes. The "Nunes Memo" alleged missteps by the FBI in seeking a FISA warrant against Trump aide Carter Page; a corresponding Democratic rebuttal memo was first blocked from simultaneous release by the committee, and subsequently the White House. Tonight, it has finally been released.
Among its many counterclaims: the Steele Dossier, only received in September, did not initiate surveilance of Page which began in July; the Steele dossier was only one, minor component of the FISA application, and only concerning Page's Moscow meetings; Steele's funding source and termination was disclosed in the application; and a number of other "distortions and misrepresentations that are contradicted by the underlying classified documents". Perhaps most seriously, it accuses Nunes of having never read the FISA application which his memo criticized.
Vox argues the memo proves that no one was misled when the surveillance was authorized. "The FBI clearly states right there in the FISA application that they believe Steele was hired to find dirt on Trump... After the Schiff memo was released on Saturday, House Republicans released a document rebutting its core claims. Their response to this damning citation is -- and I am not making this up -- that the vital line in which the FBI discloses the information about Steele was 'buried in a footnote.'"Read Replies (0)