Our galaxy produces 1013kg of antimatter a second—how?

Enlarge / That sharp red line is the high-energy radiation coming from our own galaxy, some of which is produced by the annihilation of antimatter. (credit: NASA/DOE/Fermi LAT Collaboration)

Antimatter is rare in this Universe, but the Universe is a pretty big place, so even small quantities can add up fast. In our galaxy alone, there’s a steady bath of radiation that indicates positrons are constantly running into their electron anti-partners and annihilating them. Over something the size of a galaxy, that means there are lots of the positrons around. Estimates have it that 9.1 trillion kilograms of antimatter are being destroyed each second.

Where’s it all coming from? We don’t really know, but candidates have included everything from dark matter particles to supermassive black holes. A new paper suggests a relatively unexciting source: a specific class of supernova that produces lots of radioactive titanium, which decays by releasing a positron.

Mystery

While positrons are produced by radioactivity here on Earth, they run into normal electrons almost instantly, a collision that annihilates both and releases an energetic photon. The interstellar material in space is so sparse, however, that it’s thought that positrons typically travel for over 100,000 years before running into anything. That’s long enough to blur out any individual sources and turn a single burst of positron production into a slow background of annihilations. So even if there are objects that produce positrons, we’d have a hard time spotting them.

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Source: Ars Technica – Our galaxy produces 1013kg of antimatter a second—how?

A New Amiga Arrives On the Scene — the A-EON Amiga X5000

dryriver writes: It is 2017 and the long dead Amiga platform has suddenly been resurrected. The new Amiga X5000 costs about $1,800 and is an exotic mix of PC parts and completely new custom chips, including “Xena,” an XMOS 16-core programmable 32-bit 500 MHz coprocessor that can be configured by software to act as any type of custom chip imaginable. It is connected to a special “Xorro” slot that has the same physical connection as a PCIe x8 expansion card, but it is dedicated to adding more Xena chips as desired. Amiga X5000 can run all legacy Amiga software, including software written for later PowerPC Amigas. It boots from a U-Boot BIOS. The OS is AmigaOS 4.1, but the X5000 can also boot into MorphOS or Linux. The test system used by Ars came with a ATI Radeon R9 270X video card.

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Source: Slashdot – A New Amiga Arrives On the Scene — the A-EON Amiga X5000

Gigabyte’s Skylake-X And Kaby Lake-X Aorus Gaming Motherboards Leak Ahead Of Computex

Gigabyte’s Skylake-X And Kaby Lake-X Aorus Gaming Motherboards Leak Ahead Of Computex
We are expecting there to be some exciting announcements at Computex next week, one of which might include Intel’s next generation X299 platform for Skylake-X and Kaby Lake-X, the company’s new generation of high-end desktop (HEDT) processors. Whether that actually happens at Computex or not, there is little doubt we are getting close to an

Source: Hot Hardware – Gigabyte’s Skylake-X And Kaby Lake-X Aorus Gaming Motherboards Leak Ahead Of Computex

Hackers Have Targeted Both the Trump Organization And Democrat Election Data

An anonymous reader writes: Two recent news stories give new prominence to politically-motivated data breaches. Friday the Wall Street Journal reported that last year Guccifer 2.0 sent 2.5 gigabytes of Democratic Congressional Campaign Committee election data to a Republican operative in Florida, including their critical voter turnout projections. At the same time ABC News is reporting that the FBI is investigating “an attempted overseas cyberattack against the Trump Organization,” adding that such an attack would make his network a high priority for government monitoring. “In the course of its investigation,” they add, “the FBI could get access to the Trump Organization’s computer network, meaning FBI agents could possibly find records connected to other investigations.” A senior FBI official (now retired) concedes to ABC that “There could be stuff in there that they [the Trump organization] do not want to become part of a separate criminal investigation.”
It seems like everyone’s talking about the privacy of their communications. Tonight the Washington Post writes that Trump’s son-in-law/senior advisor Jared Kushner “discussed the possibility of setting up a secret and secure communications channel between Trump’s transition team and the Kremlin, using Russian diplomatic facilities in an apparent move to shield their pre-inauguration discussions from monitoring, according to U.S. officials briefed on intelligence reports.”
And Friday Hillary Clinton was even quoted as saying, “I would have won had I not been subjected to the unprecedented attacks by Comey and the Russians…”

Read more of this story at Slashdot.



Source: Slashdot – Hackers Have Targeted Both the Trump Organization And Democrat Election Data

Hackers Have Targetted Both the Trump Organization And Democrat Election Data

An anonymous reader writes: Two recent news stories give new prominence to politically-motivated data breaches. Friday the Wall Street Journal reported that last year Guccifer 2.0 sent 2.5 gigabytes of Democratic Congressional Campaign Committee election data to a Republican operative in Florida, including their critical voter turnout projections. At the same time ABC News is reporting that the FBI is investigating “an attempted overseas cyberattack against the Trump Organization,” adding that such an attack would make his network a high priority for government monitoring. “In the course of its investigation,” they add, “the FBI could get access to the Trump Organization’s computer network, meaning FBI agents could possibly find records connected to other investigations.” A senior FBI official (now retired) concedes to ABC that “There could be stuff in there that they [the Trump organization] do not want to become part of a separate criminal investigation.”
It seems like everyone’s talking about the privacy of their communications. Tonight the Washington Post writes that Trump’s son-in-law/senior advisor Jared Kushner “discussed the possibility of setting up a secret and secure communications channel between Trump’s transition team and the Kremlin, using Russian diplomatic facilities in an apparent move to shield their pre-inauguration discussions from monitoring, according to U.S. officials briefed on intelligence reports.”
And Friday Hillary Clinton was even quoted as saying, “I would have won had I not been subjected to the unprecedented attacks by Comey and the Russians…”

Read more of this story at Slashdot.



Source: Slashdot – Hackers Have Targetted Both the Trump Organization And Democrat Election Data

A Third of the Nation's Honeybee Colonies Died Last Year

A third of the honeybees in the United States were lost over the last year, part of a decade-long die-off experts said may threaten our food supply. USA Today reports: The annual survey of roughly 5,000 beekeepers showed the 33% dip from April 2016 to April 2017. The decrease is small compared to the survey’s previous 10 years, when the decrease hovered at roughly 40%. From 2012 to 2013, nearly half of the nation’s colonies died. The death of a colony doesn’t necessarily mean a loss of bees, explains vanEngelsdorp, a project director at the Bee Informed Partnership. A beekeeper can salvage a dead colony, but doing so comes at labor and productivity costs. That causes beekeepers to charge farmers more for pollinating crops and creates a scarcity of bees available for pollination. It’s a trend that threatens beekeepers trying to make a living and could lead to a drop-off in fruits and nuts reliant on pollination, vanEngelsdor said. So what’s killing the honeybees? Parasites, diseases, poor nutrition, and pesticides among many others. The chief killer is the varroa mite, a “lethal parasite,” which researchers said spreads among colonies.

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Source: Slashdot – A Third of the Nation’s Honeybee Colonies Died Last Year

UCF Research Could Bring 'Drastically' Higher Resolution To Your Phone and TV

New submitter cinemetek quotes a report from University of Central Florida: Researchers at the University of Central Florida have developed a new color changing surface tunable through electrical voltage that could lead to three times the resolution for televisions, smartphones and other devices. Current LCD’s are made up of hundreds of thousands of pixels that display different colors. With current technology, each of these pixels contain three subpixels — one red, one green, one blue. UCF’s NanoScience Technology Center (Assistant Professor Debashis Chanda and physics doctoral student Daniel Franklin) have come up with a way to tune the color of these subpixels. By applying differing voltages, they are able to change the color of individual subpixels to red, green or blue — the RGB scale — or gradations in between. By eliminating the three static subpixels that currently make up every pixel, the size of individual pixels can be reduced by three. Three times as many pixels means three times the resolution. That would have major implications for not only TVs and other general displays, but augmented reality and virtual-reality headsets that need very high resolution because they’re so close to the eye.

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Source: Slashdot – UCF Research Could Bring ‘Drastically’ Higher Resolution To Your Phone and TV

10 Years Later: FileZilla Adds Support For Master Password That Encrypts Your Logins

An anonymous reader writes: “Following years of criticism and user requests, the FileZilla FTP client is finally adding support for a master password that will act as a key for storing FTP login credentials in an encrypted format,” reports BleepingComputer. “This feature is scheduled to arrive in FileZilla 3.26.0, but you can use it now if you download the 3.26.0 (unstable) release candidate from here.” By encrypting its saved FTP logins, FileZilla will finally thwart malware that scrapes the sitemanager.xml file and steals FTP credentials, which were previously stolen in plain text. The move is extremely surprising, at least for the FileZilla user base. Users have been requesting this feature for a decade, since 2007, and they have asked it many and many times since then. All their requests have fallen on deaf ears and met with refusal from FileZilla maintainer, Tim Kosse. In November 2016, a user frustrated with Koose’s stance forked the FileZilla FTP client and added support for a master password via a spin-off app called FileZilla Secure.

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Source: Slashdot – 10 Years Later: FileZilla Adds Support For Master Password That Encrypts Your Logins

Facebook Bans Sale of Piracy-Enabling Set-Top Boxes

Lirodon quotes a report from Variety: Facebook has joined the fight against illegal video-streaming devices. The social behemoth recently added a new category to products it prohibits users to sell under its commerce policy: Products or items that “facilitate or encourage unauthorized access to digital media.” The change in Facebook’s policy, previously reported by The Drum, appears primarily aimed at blocking the sale of Kodi-based devices loaded with software that allows unauthorized, free access to piracy-streaming services. Kodi is free, open-source media player software. The app has grown popular among pirates, who modify the code with third-party add-ons for illegal streaming. Even with the ban officially in place, numerous “jail-broken” Kodi-enabled devices remain listed in Facebook’s Marketplace section, indicating that the company has yet to fully enforce the new ban. A Facebook rep confirmed the policy went into effect earlier this month. In addition, the company updated its advertising policy to explicitly ban ads for illegal streaming services and devices.

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Source: Slashdot – Facebook Bans Sale of Piracy-Enabling Set-Top Boxes

Chipotle Delivers the Runs and Identity Theft in One Visit

I am personally a Freebirds man at heart, and now I have one more reason to be happy about that. Make sure you are close to the toilet, and while you are there, maybe check your credit report on your phone as Chipotle servers are about as leaky as its burritos?

Hackers used malware to steal customer payment data from most of Chipotle Mexican Grill Inc’s (CMG.N) restaurants over a span of three weeks, the company said on Friday, adding to woes at the chain that has just started recovering from a string of food safety lapses in 2015.
Discussion

Source: [H]ardOCP – Chipotle Delivers the Runs and Identity Theft in One Visit

Two Different Studies Find Thousands of Bugs In Pacemakers, Insulin Pumps and Other Medical Devices

Two studies are warning of thousands of vulnerabilities found in pacemakers, insulin pumps and other medical devices. “One study solely on pacemakers found more than 8,000 known vulnerabilities in code inside the cardiac devices,” reports BBC. “The other study of the broader device market found only 17% of manufacturers had taken steps to secure gadgets.” From the report: The report on pacemakers looked at a range of implantable devices from four manufacturers as well as the “ecosystem” of other equipment used to monitor and manage them. Researcher Billy Rios and Dr Jonathan Butts from security company Whitescope said their study showed the “serious challenges” pacemaker manufacturers faced in trying to keep devices patched and free from bugs that attackers could exploit. They found that few of the manufacturers encrypted or otherwise protected data on a device or when it was being transferred to monitoring systems. Also, none was protected with the most basic login name and password systems or checked that devices they were connecting to were authentic. Often, wrote Mr Rios, the small size and low computing power of internal devices made it hard to apply security standards that helped keep other devices safe. In a longer paper, the pair said device makers had work to do more to “protect against potential system compromises that may have implications to patient care.” The separate study that quizzed manufacturers, hospitals and health organizations about the equipment they used when treating patients found that 80% said devices were hard to secure. Bugs in code, lack of knowledge about how to write secure code and time pressures made many devices vulnerable to attack, suggested the study.

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Source: Slashdot – Two Different Studies Find Thousands of Bugs In Pacemakers, Insulin Pumps and Other Medical Devices