hackingbear writes: A team of scientists from China, the U.S., and U.K. successfully turned nitrogen, the dominant gas in Earth's atmosphere, into a metallic fluid by subjecting it to the extreme pressure and temperature conditions found deep inside the Earth and other planets. Their findings have been published in the journal Nature Communications .

"Our findings could inform the efforts to create forms of energetic nitrogen polymers as well as superconducting, metallic states of a sister diatomic molecule, hydrogen or H2, which could revolutionize the energy sector if reliably synthesized," according to team member Nicholas Holtgrewe. The project was funded by by the (U.S.) National Science Foundation, the (U.S.) Army Research Office, the National Natural Science Foundation of China, the Chinese Academy of Science, the British Council Researcher Links Program, and other sources. According to EurekAlert, "The researchers found that the temperature at which nitrogen transitions from insulating to metallic decreases as the pressure increases -- starting at about 1,180,000 times normal atmospheric pressure (120 gigapascals) and 2,720 degrees Celsius (3,000 kelvin)." "This means that, theoretically, nitrogen would remain in its diatomic state in the Earth's mantle but would disassociate into a fluid metal in or just above the core, which potentially has implications for our understanding of the planet's deep nitrogen cycle," said team member Sergey Lobanov.

This week NASA's Dawn space probe swooped within 22 miles of the surface of Ceres, the dwarf planet that's the largest object in the asteroid belt between Mars and Jupiter. NASA's JPL reports: In more than three years of orbiting Ceres, Dawn's lowest altitude before this month was 240 miles (385 kilometers), so the data from this current orbit bring the dwarf planet into much sharper focus... "[T]he results are better than we had ever hoped," said Dawn's chief engineer and project manager, Marc Rayman, of NASA's Jet Propulsion Laboratory, Pasadena, California. "Dawn is like a master artist, adding rich details to the otherworldly beauty in its intimate portrait of Ceres."
EarthSky reports NASA captured an up-close glimpse of those tantalizing bright spots on Ceres: The spots, evaporate deposits composed of sodium carbonate, are thought to be left over from when water came up to the surface from deeper below and then evaporated in the extremely tenuous and sporadic water vapor "atmosphere." That water could be either from a shallow sub-surface reservoir or from a deeper reservoir of salty brines percolating upward through fractures. The deposits in Occator Crater are the largest and brightest of these deposits. As with many discoveries in planetary science, they were completely unexpected, and show that Ceres is not just an inert ball of rock and ice.
Slashdot reader thegameiam adds: Ceres may have more fresh water than exists on Earth. Perhaps this would make colonization of the asteroid belt more of a possibility?

The new tallest building on the San Francisco skyline -- and the tallest building in America west of the Mississippi -- includes a nine-story electronic sculpture that's been called the tallest piece of public art on Earth. It uses 11,000 LED bulbs reflected off the tower-topping aluminum panels -- each pixel created by a set of red, green, blue and white lights controlled by 8-bit PIC microcontrollers. "On a clear night, the show is visible for 30 miles," reports IEEE Spectrum.

Slashdot reader Tekla Perry shares their article about "the technology involved in the light show at the top of Salesforce Tower. Electrical engineer and artist Jim Campbell explains it all -- and how the window-washer problem stumped him for nearly a year." "[O]n the 62nd floor, a central PC-based computer runs Ubuntu Linux, sending instructions to a communications control system that splits the data and sends it at 11 Mbit to the 32 enclosures using a custom communications protocol... We will capture images throughout the day, sending them to Amazon's cloud, and run some algorithms designed to identify visual interesting-ness. For example, at its simplest, when we look at the sky, if it's all blue, it's boring, if it's all white, it's boring, if it has white and blue it is likely to be interesting. We'll chose the best half hour of the day at each camera, based on movement and color, to display...."

And finally, when the main display shuts down late at night, another system designed by Campbell will kick in. In this static display, a set of 36 white LEDs will create a three-dimensional constellation of lights that will look like stars. "It's quieter, it has a random aspect to it," he says.
"Since construction started, the tower has emerged as an icon of the new San Francisco -- techie, ambitious, perhaps a little grandiose," writes the New Yorker, capturing the moment when Campbell finally unveiled his four-year project -- while fighting stomach flu and a chest cold, on a night which turned out to be prohibitively foggy. The executive vice-president of Boston Properties told him cheerily, "Jim! Look on the brighter side. We've got every night for the rest of our lives."

"There was a long silence from the people on the terrace. The fog was thick. At last, someone exclaimed, 'Woo-hoo!,' and a volley of cheers followed." Although the colors they were seeing came from the celebratory fireworks and not from Jim's light sculpture.

Are there any San Francisco-area Slashdotters who want to weigh in on the Salesforce Tower?

In the last decade, we have discovered thousands of planets outside our solar system and have learned that rocky, temperate worlds are numerous in our galaxy. The next step will involve asking even bigger questions. Could some of these planets host life? And if so, asks NASA, will we be able to recognize life elsewhere if we see it? From a blog post on NASA's website: A group of leading researchers in astronomy, biology and geology has come together under NASA's Nexus for Exoplanet System Science, or NExSS, to take stock of our knowledge in the search for life on distant planets and to lay the groundwork for moving the related sciences forward.

"We're moving from theorizing about life elsewhere in our galaxy to a robust science that will eventually give us the answer we seek to that profound question: Are we alone?" said Martin Still, an exoplanet scientist at NASA Headquarters, Washington. In a set of five review papers published last week in the scientific journal Astrobiology, NExSS scientists took an inventory of the most promising signs of life, called biosignatures. The paper authors include four scientists from NASA's Jet Propulsion Laboratory in Pasadena, California. They considered how to interpret the presence of biosignatures, should we detect them on distant worlds. A primary concern is ensuring the science is strong enough to distinguish a living world from a barren planet masquerading as one.

AOL discontinued AIM, its 20-year-old iconic instant messaging service, last December, months after cutting third-party access to it. Now Motherboard reports a a small team of developers has resurrected it with a private server. From the report: The new chat service is called AIM Phoenix, and it works by running the messages through a private Dynamic DNS run by Wildman Productions, a non-profit group of hobbyist programers. This isn't a new AIM client, it literally uses the old software running on a new server, so it looks and feels exactly like AIM. It's simple to set up. First, you download an old version of AIM from the AIM Phoenix website, register for a new username, tweak the settings to reroute through Wildman Productions' server, and then open yourself up the nostalgic glory of Web 2.0. The old versions of AIM are touchy on new machines and I had to play with a few different versions before I got 5.0 working on my Windows 10 machine.

An anonymous reader writes: Linux 4.18 development is going strong with recent 4.18-rc1 release. This kernel cycle has dropped 107,210 lines of code so far but Linux 4.18 is adding many new features. The kernel is coming in lighter as a result of the LustreFS code being removed and other code cleanups. On the feature front, Phoronix reports, "ew AMDGPU support improvements, mainlining of the V3D DRM driver, initial open-source work on NVIDIA Volta GV100 hardware, merging of the Valve Steam Controller kernel driver, merging of the BPFILTER framework, ARM Spectre mitigation work, Speck file-system encryption support, removal of the Lustre file-system, the exciting restartable sequences system call was merged, the new DM writecache target, and much more."

Mike Bouma writes: Pixelglass, known for their "Giana Sisters SE" game, has released a worthy new game for the Amiga 500, called "Worthy." Here's a description of this cute action puzzler: "Assume the role of a fearless boy and collect the required number of diamonds in each stage in order to win the girl's heart! Travel from maze to maze, kill the baddies, avoid the traps, collect beers (your necessary 'fuel' to keep you going), find the diamonds, prove to her you're WORTHY!" Time to dust off that classic Amiga or alternatively download a digital copy and use an UAE emulator for your platform of choice. Have a look at the release trailer.

Long-time Slashdot reader theodp writes: In her Bard College commencement speech, ex-Google VP and former U.S. CTO Megan Smith revealed to graduates that she gave President Obama a computing history lesson on the same day he learned to code in 2014. "I walked into the Oval Office to do coding with President Obama, and, interestingly, Prince William had just stepped out," Smith explained (YouTube). "They had just had a meeting. I said to President Obama, you know what you and I are about to do is related to Prince William, and he said, how's that. Well, the Prince's wife Kate, her mother and grandmother were codebreakers at Bletchley Park, where they cracked the Nazi Enigma codes...." [Presumably Smith meant to say Kate's great-aunt, not mother — Carole Middleton wasn't born until 1955.]

To be fair to the President, Smith once confessed to not knowing much about computing history herself, explaining in a 2012 Official Google Blog post that she and other visiting tech luminaries were embarrassingly clueless about who Ada Lovelace was in a 2011 visit to England. "Last year, a group of us were lucky enough to visit the U.K. Prime Minister's residence at 10 Downing Street, as part of the Silicon Valley Comes to the U.K. initiative," Smith wrote. "While there, we asked about some of the paintings on the wall. When we got to a large portrait of a regally dressed woman, our host said 'and of course, that's Lady Lovelace'... You can imagine our surprise when we learned she was considered by some to be the world's first computer programmer -- having published the first algorithm intended for use on Charles Babbage's Analytical Engine." One imagines Smith might also have been surprised to learn that many programmers older than Smith were already very aware of Lady Ada at that time thanks to the Department of Defense, who tried in vain to make Ada a household name for decades, but had little success popularizing the Ada programming language, which was named after Augusta Ada King, Countess of Lovelace.

jrepin writes: KDE unveils the final release of Plasma 5.13, the free and open-source desktop environment. Members of the Plasma team have focused on optimizing startup and minimizing memory usage. Plasma Browser Integration is a suite of new features which make Firefox, Chrome and Chromium-based browsers work with your desktop. For example, downloads are now displayed in the Plasma notification popup, and the Media Controls Plasmoid can mute and skip videos and music playing from within the browser. Browser tabs can be opened directly using KRunner via the Alt-Space keyboard shortcut. System Settings design has been improved further. Window manager gained much-improved effects for blur and desktop switching. Wayland work continued, with the return of window rules, and initial support for screencasts and desktop sharing. You can view the changelog here.

To celebrate its 14th birthday, Phoronix.com used a 15-inch MacBook Pro to run system benchmarking tests on the following operating systems:

- Windows 10 Pro

- The latest macOS 10.13 High Sierra

- Windows 10 Windows Subsystem for Linux (WSL) using Ubuntu 18.04

- Ubuntu 18.04 LTS with the Linux 4.15 kernel, GCC 7.3.0, and an EXT4 file-system.

- Clear Linux 22780 with the Linux 4.16 kernel, GCC 8.1.1, and EXT4.

- Fedora Workstation 28 with updates is the Linux 4.16 kernel, GCC 8.1.1, and EXT4.

- OpenSUSE Tumbleweed with the Linux 4.16 kernel, GCC 7.3.1, and default file-system configuration of Btrfs root file-system with XFS home partition.

The results? When it came to outright wins and losses, Clear Linux 22780 was the front-runner 59% of the time followed by macOS 10.13.4 finishing first 21% of the time and then Fedora Workstation 28 with winning 10% of the time.

For losses, to little surprise considering the I/O overhead, Windows 10 was in last place 38% of the time followed by Ubuntu 18.04 being surprisingly the slowest Linux distribution 30% of the time on this 2016 MacBook Pro.
The article also reminds readers that "For those looking for a Linux laptop, there are plenty of better options..."

An anonymous reader quotes a report from Ars Technica: Today's controversy begins with a Reddit thread that noted FlightSimLabs' A320 add-on installing "cmdhost.exe" files in the "system32" and "SysWOW64" folders inside the Windows directory. The strange filename and location -- which seems designed to closely match those of actual Windows system files -- made some Reddit users suspicious, especially given FlightSimLabs history of undisclosed installations. FlightSimLabs responded on Facebook last Thursday by saying that the files came from third-party e-commerce service eSellerate and were designed to "reduce the number of product activation issues people were having." This system has been acknowledged in the FlightSimLabs forums in the past, and it apparently passes all major antivirus checks.

The "controversy" over these files might well have died down after that response. But then FlightSimLabs' Simon Kelsey sent a message to the moderators of the flightsim subreddit, gently reminding them of "Reddit's obligation as a publisher... to ensure that any libelous content is taken down as soon as you become aware of it." While ostensibly welcoming "robust fair comment and opinion," the message also warns that "ANY suggestion that our current or future products pose any threat to users is absolutely false and libelous." That warning extends to the company's previous password-extractor controversy, with Kelsey writing, "ANY suggestion that any user's data was compromised during the events of February is entirely false and therefore libelous." "I would hate for lawyers to have to get involved in this, and I trust that you will take appropriate steps to ensure that no such libel is posted," Kelsey concludes. A follow-up message from Kelsey reiterated the same points and noted that FlightSimLabs has reported specific comments and demanded they be removed as libelous.

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.

An anonymous reader quotes a report from Ars Technica: A California state bill that would have more heavily regulated the use of flamethrowers has now effectively fizzled out in a legislative committee. In light of this development, there's nothing to stop Boring Company customers in California from receiving the company's sold-out flamethrowers. On May 26, the day after the bill died in committee, CEO Elon Musk tweeted: "About to ship. @BoringCompany holding flamethrower pickup parties in a week or so, then deliveries begin. Check https://www.boringcompany.com/... for details." After Musk said he would be selling a flamethrower dubbed "Not a Flamethrower" to get around customs, Assemblyman Miguel Santiago (D-Los Angeles) authored a bill that would have imposed more restrictions on their acquisition and use.

"I honestly thought it was a joke when I saw the news about this," the assemblyman said in a statement at the time. "This product, in the wake of California's deadliest wildfire year in state history, is incredibly insensitive, dangerous, and most definitely not funny." He added: "There are many times in which technology and inventions benefit society but are not made available to the public. We don't allow people to walk in off the street and purchase military grade tanks or armor-piercing ammunition... I cannot even begin to imagine the problems a flamethrower would cause firefighters and police officers alike."

A rumor from The Korea Herald suggests that Apple may be planning on introducing its first triple camera smartphone this year with the rumored 6.5-inch iPhone. The rumor comes buried in a piece mostly about Samsung, which is also expected to introduce a triple-camera smartphone with next year's S10. The Next Web reports: To be clear, this isn't the first time we've heard word of a triple camera iPhone, but the three previous reports have pointed to a 2019 release, according to MacRumors. One of these reports was from Ming Chi Kuo, an Apple analyst who has a solid track record. The fact that's it's mentioned offhandedly in the Korea Herald report makes me think the date may have been a mistake. No matter how good AI and processing get, there's only so much you can do within the physical constraints of a small smartphone sensor. In theory, using multiple cameras and combining the information with some smart processing could help you somewhat replicate the image quality of a larger sensor.

An anonymous reader quotes a report from SFGate: The American Civil Liberties Union on Wednesday sued U.S. Immigration and Customs Enforcement for records about the agency's use of license plate reader technology, after ICE apparently failed to turn over records following multiple requests. In December, ICE purchased access to two databases of ALPR data, the complaint reads. One of those databases is managed by Vigilant Solutions, which has contracts with more than two dozen Bay Area law enforcement agencies. "We believe the other is managed by Thomson Reuters," ACLU laywer Vasudha Talla said. The ACLU and other privacy advocates have expressed concern about how this data will be stored and used for civil immigration enforcement. The ACLU filed two requests under the Freedom of Information Act in March seeking records from ICE, including contracts, memos, associated communications, training materials and audit logs. Since then, ICE has not provided any records, the ACLU said in the complaint, which was filed Tuesday morning in the Northern District Court for the Northern District of California. "The excessive collection and storing of this data in databases -- which is then pooled and shared nationally -- results in a systemic monitoring that chills the exercise of constitutional rights to free speech and association, as well as essential tasks such as driving to work, picking children up from school, and grocery shopping," the complaint said. "We have essentially two concerns: one that is general to ALPR databases, and one that's specific to this situation with ICE," Talla said. "The ACLU has done a lot of work around surveillance technology and ALPR, and we're generally concerned about the aggregation of all this data about license plates paired with a time and location, stretching back for so many months and years."

FLAC and Ogg now have faster audio encoding and decoding capabilities thanks to recent code improvements. An anonymous reader writes: Robert Kausch of the fre:ac audio converter project informed news outlet Phoronix about recent changes he has made to FLAC and Ogg for bolstering faster performance. Kausch says he updated the CRC checks within FLAC and Ogg to a faster algorithm and those patches have now been accepted upstream. The Ogg and FLAC updates were merged this week for using the optimized CRC algorithm. As a result of this, encoding and decoding FLAC is now 5 percent faster, while encoding and decoding Ogg FLAC is 10 percent and 15 percent faster, respectively. Opus sees about one percent faster decoding, while Vorbis does decoding at two percent faster pace.

An anonymous reader quotes a report from Ars Technica: In the U.S., two types of electricity generation are on the rise: natural gas and renewables. If one of those is set to make a bigger mark than the other this year, it's natural gas: in 2018, natural gas-burning capacity is expected to outpace renewable capacity for the first time in five years, according to data from the Energy Information Agency. Although natural gas additions are expected to overtake renewable energy additions in 2018, forecasts for renewable energy additions to the grid roughly match what we saw in 2017. Natural gas is overtaking renewables not because renewable energy adoption is slowing, but more because natural gas facilities are seeing a considerable boom.

In fact, barring any changes in the EIA numbers, natural gas, wind, and solar generation are the only electricity generation sources that will be added to the U.S. grid in any consequential manner in 2018. Battery, hydroelectric, and biomass facilities make up the small percentage of "other" sources that are expected to come online this year. Renewable energy also started off the year strong. According to the EIA, "in February 2018, for the first time in decades, all of the new generating capacity coming online within a month were non-fossil-fueled. Of the 475 MW of capacity that came online in February, 81 percent was wind, 16 percent was solar photovoltaic, and the remaining 3 percent was hydro and biomass."

An anonymous reader quotes a report from The New York Times: Will it soon be possible to simulate the feeling of a spirit not attached to any particular physical form using virtual or augmented reality? If so, a good place to start would be to figure out the minimal amount of body we need to feel a sense of self, especially in digital environments where more and more people may find themselves for work or play. It might be as little as a pair of hands and feet, report Dr. Michiteru Kitazaki and a Ph.D. student, Ryota Kondo. In a paper published Tuesday in Scientific Reports, they showed that animating virtual hands and feet alone is enough to make people feel their sense of body drift toward an invisible avatar (Warning: source may be paywalled; alternative source). Their work fits into a corpus of research on illusory body ownership, which has challenged understandings of perception and contributed to therapies like treating pain for amputees who experience phantom limb.

Using an Oculus Rift virtual reality headset and a motion sensor, Dr. Kitazaki's team performed a series of experiments in which volunteers watched disembodied hands and feet move two meters in front of them in a virtual room. In one experiment, when the hands and feet mirrored the participants' own movements, people reported feeling as if the space between the appendages were their own bodies. In another experiment, the scientists induced illusory ownership of an invisible body, then blacked out the headset display, effectively blindfolding the subjects. The researchers then pulled them a random distance back and asked them to return to their original position, still virtually blindfolded. Consistently, the participants overshot their starting point, suggesting that their sense of body had drifted or "projected" forward, toward the transparent avatar.

An anonymous reader quotes a report from CNET: Notches, it seems, are the new black. Originally seen -- and often criticized -- on the Essential PH-1 and iPhone X in 2017, the trend of adding notches to Android phones has only accelerated this year as phone makers look to maximize the screen size. But the Lenovo Z5 is going the other way: It's truly all-screen, and notch-free. At least, that's according to a sketch shared last Friday by Lenovo VP Chang Cheng on Weibo, a Twitter-like platform in China. Cheng's teaser post says (according to Google Translate) that the Lenovo Z5 is the company's new flagship phone. Besides that, the post leaves it pretty vague.

All-screen phones look cool, but they challenge the manufacturer to find a place to put front cameras, sensors and other hardware. That's why we see bezels on some phones and notches on others. It's not clear what Lenovo plans to do with the front camera on the Lenovo Z5. Cheng's post claims that "four technological breakthroughs" and "18 patented technologies" were made for the phone, but doesn't go into details. One of the first smartphones to launch with an edge-to-edge display was the Xiaomi Mi Mix. It launched with next to no bezel or notch, leaving many to wonder where the earpiece would be. What Xiaomi managed to do was use what it calls "cantilever piezoelectric ceramic acoustic technology." Basically, it's a component that converts electrical energy into mechanical energy to transfer to the phone's internal metal frame, which then vibrates to create sound. It's possible the Z5 relies on a similar technology, or bone conduction technology found in many headphones and some smartphones.

Aside from the front-facing camera and ambient light sensors, the other components that are typically found on the front of smartphones are relatively easy to drag-and-drop to different locations. For example, the speakers in the Z5 are likely bottom facing and the navigation controls are almost certainly software based. The question is whether or not it's worth having a true all-screen smartphone if it means there's no front-facing camera, ambient light sensors, or stereo speakers.

schwit1 quotes a Washington Post perspective piece by the authors of a new book about Pluto: The process for redefining planet was deeply flawed and widely criticized even by those who accepted the outcome. At the 2006 IAU conference, which was held in Prague, the few scientists remaining at the very end of the week-long meeting (less than 4 percent of the world's astronomers and even a smaller percentage of the world's planetary scientists) ratified a hastily drawn definition that contains obvious flaws. For one thing, it defines a planet as an object orbiting around our sun -- thereby disqualifying the planets around other stars, ignoring the exoplanet revolution, and decreeing that essentially all the planets in the universe are not, in fact, planets.

Even within our solar system, the IAU scientists defined "planet" in a strange way, declaring that if an orbiting world has "cleared its zone," or thrown its weight around enough to eject all other nearby objects, it is a planet. Otherwise it is not. This criterion is imprecise and leaves many borderline cases, but what's worse is that they chose a definition that discounts the actual physical properties of a potential planet, electing instead to define "planet" in terms of the other objects that are -- or are not -- orbiting nearby. This leads to many bizarre and absurd conclusions. For example, it would mean that Earth was not a planet for its first 500 million years of history, because it orbited among a swarm of debris until that time, and also that if you took Earth today and moved it somewhere else, say out to the asteroid belt, it would cease being a planet.

To add insult to injury, they amended their convoluted definition with the vindictive and linguistically paradoxical statement that "a dwarf planet is not a planet." This seemingly served no purpose but to satisfy those motivated by a desire -- for whatever reason -- to ensure that Pluto was "demoted" by the new definition. By and large, astronomers ignore the new definition of "planet" every time they discuss all of the exciting discoveries of planets orbiting other stars.