Author: kenmay

Raspberry Pi releases an OS to breathe new life into old PCs

The Raspberry Pi Foundation has released an experimental version of its Linux-based Pixel OS for Windows and Mac PCs. The OS, originally designed to run only on the Raspberry Pi hobby board, comes with the Chromium web browser and a suite of productivity and coding tools. “We asked ourselves one simple question: If we like Pixel so much, why ask people to buy Raspberry Pi hardware in order to run it?” founder Eben Upton wrote in a blog post . Built on top of Debian, the OS is light enough to run most old machines, provided you have at least 512MB of RAM. “Because we’re using the venerable i386 architecture variant it should run even on vintage machines like my ThinkPad X40 (above), ” Upton said. It’s easy to try out, but Upton urges you back up machines that may have valuable data. After downloading the image, you burn it either to a DVD or USB stick, then enable booting of those devices. You can normally do that by tweaking your PC’s BIOS or by holding the “C” key down when you boot up a Mac. From there, it’ll run the OS with no need to install anything. If you booted on a USB stick, you’ll get the option to run “with persistence, ” meaning any changes or files will stick for the next session. If you’d rather just play around and start fresh next time, you can run without persistence or reset it. As mentioned, you get a full suite of apps and a browser, but unlike with the Pi version, there’s no Minecraft or Wolfram Mathematica because of licensing issues. There are plenty of lightweight Linux distros for older PCs (including Debian itself), or you could use Neverware , which turns your old laptop into a Chromebook. However, the Pi Foundation supplies a lot of useful Linux apps with Pixel, and aims to make it as easy to use as possible. By porting it to desktop machines, Upton also feels “we can more easily see where [the operating system’s] weak points are and work to fix them [on the Pi].” The group thinks it could be a perfect for schools (where the Raspberry Pi already has a big foothold ) to help students learn programming and various apps. The idea is that they can learn at school, then using the persistent boot option, continue working at home with exactly the same setup. As mentioned, the Pixel OS is still in the experimental stages, and doesn’t run on all machines. On his own modern Mac, Upton said, “the machine fails to identify the image as bootable.” They’ll be releasing more updates going forward, but if you’re interested in giving it a try, you can hit announce post to find it. Source: Raspberry Pi

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Raspberry Pi releases an OS to breathe new life into old PCs

China Claims Tests of ‘Reactionless’ EM Drive Were Successful

An anonymous reader quotes a report from Popular Science: The “reactionless” Electromagnetic Drive, or EmDrive for short, is an engine propelled solely by electromagnetic radiation confined in a microwave cavity. Such an engine would violate the law of conservation of momentum by generating mechanical action without exchanging matter. But since 2010, both the United States and China have been pouring serious resources into these seemingly impossible engines. And now China claims its made a key breakthrough. Dr. Chen Yue, Director of Commercial Satellite Technology for the China Academy of Space Technology (CAST) announced on December 10, 2016 that not only has China successfully tested EmDrives technology in its laboratories, but that a proof-of-concept is currently undergoing zero-g testing in orbit (according to the International Business Times, this test is taking place on the Tiangong 2 space station). If China is able to install EmDrives on its satellites for orbital maneuvering and altitude control, they would become cheaper and longer lasting. Li Feng, lead CAST designer for commercial satellites, states that the current EmDrive has only a thrust of single digit millinewtons, for orbital adjustment; a medium sized satellite needs 0.1-1 Newtons. A functional EmDrive would also open up new possibilities for long range Chinese interplanetary probes beyond the Asteroid belt, as well freeing up the mass taken up by fuel in manned spacecraft for other supplies and equipment to build lunar and Martian bases. On the military side of things, EmDrives could also be used to create stealthier, longer lasting Chinese surveillance satellites. Read more of this story at Slashdot.

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China Claims Tests of ‘Reactionless’ EM Drive Were Successful

Dutch scientists’ artificial leaf can create medicine anywhere

Wouldn’t it be great to have the ability to concoct medicine anywhere the sun shines, even if it’s on another planet? A team of Dutch scientists from Eindhoven University of Technology have developed an artificial leaf-like device that could make that happen. The researchers, inspired by plants that can make their own food through photosynthesis , used materials that can match leaves’ capability to capture and store sunlight for later use. These materials are called luminescent solar concentrators (LSCs), which have special light-sensitive molecules that can capture huge amounts of incoming light. The team designed a device that looks like a leaf by incorporating thin, microchannels mimicking veins in a silicon rubber LSC. By pumping liquids into those channels, their molecules can get into contact with the sunlight absorbed by the LSC. The energy is intense enough to trigger chemical reactions. According to the researchers, the device’s chemical production was 40 percent higher than the rate demonstrated by similar experiments without LSC. “Using a reactor like this means you can make drugs anywhere, in principle, whether malaria drugs in the jungle or paracetamol on Mars, ” lead researcher Dr. Timothy Noël explained. “All you need is sunlight and this mini-factory.” Source: Eindhoven University of Technology

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Dutch scientists’ artificial leaf can create medicine anywhere

Online RPG ‘Asheron’s Call’ to shut down after 17 years

Well-done online role-playing games tend to have a long shelf life , but the Asheron’s Call series has lasted longer than most. It got started way back in 1999, and has lasted through three publisher changes, a shift to a buy-once model and even a full-on resurrection , among other tribulations. However, even classics have to call it quits at some point. Turbine has announced that it’s ending support for both the original Asheron’s Call and Asheron’s Call 2 on January 31st, 2017. The series will be completely free to play for any account holder until then, but you won’t get to create a new account to see what the fuss is about. The shutdown wasn’t exactly unexpected. Asheron’s Call support has been limited to maintenance for over two years, so it wasn’t about to experience a revival. And just a day before the closure announcement, Turbine revealed that it was spinning off the Dungeons & Dragons Online and Lord of the Rings Online teams into a separate company, Standing Stone Games. Given that those are Turbine’s only active projects, it’s not hard to see what’s likely happening — Turbine may still own Asheron’s Call , but it doesn’t have the staff needed to keep the lights on. Don’t expect a revival like the series saw in 2012. There is a crowdfunding effort from fans hoping to buy the franchise and keep it alive, but that’s contingent on both sufficient support and Turbine being willing to sell. Turbine had talked about shifting to privately-run servers, but that didn’t happen. As it stands, massively multiplayer online games aren’t as red hot as they used to be. Even World of Warcraft is nowhere near the subscriber count of its heyday. It’s sad to see Asheron’s Call go, but the MMO world has changed a lot since it arrived 17 years ago. Source: Asheron’s Call (Facebook)

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Online RPG ‘Asheron’s Call’ to shut down after 17 years

LibreOffice Will Have New ‘MUFFIN’ UI

New submitter iampiti writes: The Document Foundation has announced a new user interface concept for LibreOffice. Users will be able to choose from several toolbar configurations including the “Notebook bar” which is similar to Microsoft Office’s ribbon. According to TDF, “The MUFFIN (My User Friendly — Flexible Interface) represents a new approach to UI design, based on the respect of user needs rather than on the imposition of a single UI to all users” Read more of this story at Slashdot.

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LibreOffice Will Have New ‘MUFFIN’ UI

Encrypted chat app Signal circumvents government censorship

Just days after Open Whisper Systems concluded the Egyptian government had blocked access to its encrypted messaging service, Signal, the company rolled out an update that circumvents large-scale censorship systems across Egypt and the United Arab Emirates. The update also adds the ability to apply stickers, text and doodles to images, but that’s just icing on the censorship-evading cake. “Over the weekend, we heard reports that Signal was not functioning reliably in Egypt or the United Arab Emirates, ” Open Whisper Systems writes . “We investigated with the help of Signal users in those areas, and found that several ISPs were blocking communication with the Signal service and our website. It turns out that when some states can’t snoop, they censor.” Open Whisper Systems circumvents filtering systems with domain fronting, a technique that routes all messages through a popular domain name — in this case, Google. All Signal messages sent from an Egypt or UAE country code will look like a normal HTTPS request to the Google homepage. In order to block Signal in these countries, the governments would have to disable Google. “The goal for an app like Signal is to make disabling internet access the only way a government can disable Signal, ” the company says. The blog post continues, “With enough large-scale services acting as domain fronts, disabling Signal starts to look like disabling the internet.” Source: Signal

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Encrypted chat app Signal circumvents government censorship

After Uber defied California’s DMV, the DMV revoked Uber’s registrations

If these people are in California, this is not a self-driving Uber with an engineer up front. (credit: UberPop) On Wednesday night, the California DMV issued a statement saying it would revoke the registrations of 16 cars owned by Uber, which the company had been using to test its self-driving system. The DMV said that “the registrations were improperly issued for these vehicles because they were not properly marked as test vehicles.” The move from the California DMV comes after a contentious public battle last week, when Uber suddenly announced the launch of its pilot program in San Francisco (the same program had been running in Pittsburgh for a few months already). But Bloomberg noted that the ride-hailing company still hadn’t registered with the state’s DMV , which requires that companies looking to test self-driving cars apply for a special permit to do so on public roads. Uber countered that its system wasn’t very advanced yet and was indistinguishable from a mere Advanced Driver Assistance System (ADAS), which do not require special permits. Uber cited Tesla’s autopilot software, which drivers currently use without adhering to the DMV’s autonomous vehicle rules. Tesla, however, has registered with the state’s motor department to test autonomous vehicles. Read 4 remaining paragraphs | Comments

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After Uber defied California’s DMV, the DMV revoked Uber’s registrations

Japan Just Scrapped a $9 Billion Nuclear Reactor That Never Really Worked

The Monju nuclear reactor. (Image: Nife/Wikimedia) The government of Japan has decided to decommission the experimental Monju nuclear reactor, which worked for just 250 days out of its total 22-year lifespan. Read more…

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Japan Just Scrapped a $9 Billion Nuclear Reactor That Never Really Worked

AT&T unveils network-level robocall blocking, call spam warnings

Enlarge (credit: AT&T ) AT&T yesterday unveiled free robocall blocking for postpaid smartphone customers. Named Call Protect , the service blocks some fraud calls at the network level before they reach customers’ phones. In other cases, when it’s less clear whether the call is fraudulent, Call Protect doesn’t block the call but shows “suspected spam warnings on the incoming call screen which let customers choose whether or not to answer calls that originate from a suspected spam source,” AT&T’s announcement said. At least for now, the service is available only for AT&T postpaid wireless customers with iPhones or Android phones that support AT&T’s HD Voice technology. Call Protect is not automatically enabled. Instead, customers can add the feature in their AT&T account settings or the Call Protect app for iPhone and Android . Some Android users complained in the Google Play store reviews that Call Protect doesn’t support unlocked devices like the Google Pixel. Read 6 remaining paragraphs | Comments

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AT&T unveils network-level robocall blocking, call spam warnings