program1 – Page 6 – Tech Today w/ Ken May

Tiny micro-supercapacitors built directly on a chip

(credit: Drexel University ) Since the tech boom began decades ago, we’ve seen a dramatic transformation of electronics. Today, some technological dreamers are talking about “smart environments” where electronics are seamlessly integrated into our environment, providing comfort and convenience. For these dreams to be achieved, we need to get electronics—not just the chips—miniaturized to the point where sensors can be pervasive. This involves developing high-performance electrochemical storage devices to enable long-lived sensors and radio frequency identification (RFID) tags. But efficient miniaturized energy storage devices have proven to be challenging to create; it can be done, but it’s hard to integrate the results with other electronics. Supercapacitors According to an article in Science , an international team of scientists has now reported some progress in this area—specifically with the design of micro-supercapacitors. Supercapacitors are a class of materials that can store energy through accumulation of charge at the surface of a high-surface-area carbon sheet. They typically have a good cycle life, moderate energy density (6 Wh/kg), and high power densities (> 10 kW/kg). Supercapacitors are a great replacement for batteries in applications that require high power delivery and uptake with a very long charge-discharge cycle life; micro-supercapacitors are the same kind of material but much, much smaller. Read 13 remaining paragraphs | Comments

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Tiny micro-supercapacitors built directly on a chip

Remains at a Swedish fort tell a story of bloody Iron Age warfare

A Roman coin found at the site of Sandby Borg, whose inhabitants probably included a number of unemployed Roman soldiers. (credit: Max Jahrehorn Oxides) On Öland, an icy island off the coast of Sweden, archaeologists have unearthed the remains of a 1,500-year-old fort whose inhabitants were brutalized in such an extreme way that legends about it persist to this day. As researchers piece together the fort’s final days, it sounds like they’re telling a horror story. Possibly hundreds of people sheltering behind the fort’s defenses were executed and abandoned, their bodies left to rot in place without burial. Their wounds were indicative of execution. And some of their mouths were stuffed with goat and sheep teeth, possibly a dark reference to the Roman tradition of burying warriors with coins in their mouths. None of their considerable wealth was looted, which is highly unusual. Researchers have found barely hidden valuables in every house they’ve excavated. Even the livestock was left behind after the slaughter, locked up to die of starvation. This is even more bizarre than the lack of looting. On an island with scarce resources, it would have been considered a waste for victors (or neighbors) to leave healthy horses and sheep behind after battle. Read 10 remaining paragraphs | Comments

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Remains at a Swedish fort tell a story of bloody Iron Age warfare

Massive US-planned cyberattack against Iran went well beyond Stuxnet

(credit: Aurich Lawson) The Stuxnet computer worm that destroyed centrifuges inside Iran’s Natanz uranium enrichment site was only one element of a much larger US-prepared cyberattack plan that targeted Iran’s air defenses, communications systems, and key parts of its power grid, according to articles published Tuesday. The contingency plan, known internally as Nitro Zeus, was intended to be carried out in the event that diplomatic efforts to curb Iran’s nuclear development program failed and the US was pulled into a war between Iran and Israel, according to an article published by The New York Times . At its height, planning for the program involved thousands of US military and intelligence personnel, tens of millions of dollars in expenditures, and the placing of electronic implants in Iranian computer networks to ensure the operation targeting critical infrastructure would work at a moment’s notice. Another piece of the plan involved using a computer worm to destroy computer systems at the Fordo nuclear enrichment site, which was built deep inside a mountain near the Iranian city of Qom. It had long been considered one of the hardest Iranian targets to disable and was intended to be a follow-up to “Olympic Games,” the code name of the plan Stuxnet fell under. Read 5 remaining paragraphs | Comments

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Massive US-planned cyberattack against Iran went well beyond Stuxnet

This flower, preserved in amber, may be 45 million years old

George Poinar The new fossil flower Strychnos electri in its original Dominican amber piece of mid-Tertiary age. The whole flower is less than 20 mm long and is the first finding of an asterid flower in amber from the New World. 4 more images in gallery This delicate flower has been preserved in amber, with each petal and tiny hair intact, for as many as 45 million years. Scientists discovered the flower in a cave in the Dominican Republic along with a treasure trove of insects preserved in amber. Now the flower has been identified by an expert as a member of the vast Asterid clade of flowers, whose members include the coffee plant as well as potatoes, peppers, and the poisonous Strychnine tree. Amber is fossilized tree sap, and pinning an exact date on it is extremely difficult. In paper published this morning in Nature Plants , biologists George Poinar and Lena Struwe carefully used two methods of dating the material to suggest that this flower might have been fossilized as early as 45 million years ago or as late as 15 million. They came up with such a broad spread of dates largely because we still don’t have very many fossils from these kinds of plants, which makes precise dates difficult. The researchers had to date the flower by proxy, by examining other life forms found the amber cache, including the common single-celled organisms known as foraminifera and coccoliths. There are distinct evolutionary and population changes in foraminifera and coccoliths over time, and paleontologists often use these tiny animals to place fossils during specific geological periods. What’s certain is that this flower bloomed long before the age of apes during the mid-Tertiary period. Read 3 remaining paragraphs | Comments

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This flower, preserved in amber, may be 45 million years old

The fall… and rise and rise and rise of chat networks

At the end of October 2014, something very important came to an end. After 15 years of changing the way people communicated forever, Microsoft closed down its MSN Windows Live service. Originally named MSN Messenger, its demise was not an overnight failure. Microsoft’s acquisition of Skype for £5.1 billion in 2012 meant it was only a matter of time before it was finally closed. China was the last territory to migrate the service to Skype; other countries did so 12 months earlier. At its height, MSN Messenger had more than 330 million users after originally being launched to rival the emerging chat networks of AOL’s AIM service and ICQ, followed by the entry of Yahoo Messenger. It was the social network of its day and as influential and dominant as Facebook is today. Read 47 remaining paragraphs | Comments

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The fall… and rise and rise and rise of chat networks

Warning: Bug in Adobe Creative Cloud deletes Mac user data without warning

Enlarge (credit: Backblaze) Adobe Systems has stopped distributing a recently issued update to its Creative Cloud graphics service amid reports a Mac version can delete important user data without warning or permission. The deletions happen whenever Mac users log in to the Adobe service after the update has been installed, according to officials from Backblaze , a data backup service whose users are being disproportionately inconvenienced by the bug. Upon sign in, a script activated by Creative Cloud deletes the contents in the alphabetically first folder in a Mac’s root directory. Backblaze users are being especially hit by the bug because the backup service relies on data stored in a hidden root folder called .bzvol. Because the folder is the alphabetically top-most hidden folder at the root of so many users’ drives, they are affected more than users of many other software packages. “This caused a lot of our customers to freak out,” Backblaze Marketing Manager Yev Pusin wrote in an e-mail. “The reason we saw a huge uptick from our customers is because Backblaze’s .bzvol is higher up the alphabet. We tested it again by creating a hidden file with an ‘.a’ name, and the files inside were removed as well.” Read 5 remaining paragraphs | Comments

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Warning: Bug in Adobe Creative Cloud deletes Mac user data without warning

Netflix finishes its massive migration to the Amazon cloud

(credit: Netflix) Netflix has been moving huge portions of its streaming operation to Amazon Web Services (AWS) for years now, and it says it has finally completed its giant shift to the cloud. “We are happy to report that in early January of 2016, after seven years of diligent effort, we have finally completed our cloud migration and shut down the last remaining data center bits used by our streaming service,” Netflix said in a blog post that it plans to publish at noon Eastern today. (The blog should go up at this link .) Netflix operates “many tens of thousands of servers and many tens of petabytes of storage” in the Amazon cloud, Netflix VP of cloud and platform engineering Yury Izrailevsky told Ars in an interview. Netflix had earlier planned to complete the shift by the end of last summer . Read 19 remaining paragraphs | Comments

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Netflix finishes its massive migration to the Amazon cloud

IRS website attack nets e-filing credentials for 101,000 taxpayers

The US Internal Revenue Service was the target of a malware attack that netted electronic tax-return credentials for 101,000 social security numbers, the agency disclosed Tuesday. Identity thieves made the haul by using taxpayers’ personal data that was stolen from a source outside the IRS, according to a statement . The attackers then used an automated bot against an application on the IRS website that provides personal identification numbers for the electronic filing of tax returns. In all, the hackers made unauthorized queries against 464,000 social security numbers but succeeded against only 101,000 of them. No personal information was obtained from the IRS systems. Agency officials are flagging the accounts of all affected taxpayers and plan to notify them by mail of the incident. The IRS is also working with other government agencies and industry partners to investigate the hack or stem its effects. The hack occurred last month. Read 3 remaining paragraphs | Comments

Fans rejoice: Bryan Fuller named showrunner on new Star Trek series

Maybe we’ll be hanging out on the USS Reliant for this series. (credit: Paramount) Ever since Paramount announced last year that it would be launching a new Star Trek TV series, rumors have swirled about what it might be like. Now we know that the show is in good hands, at least when it comes to the writing. Bryan Fuller, who also worked on Deep Space Nine and Voyager , will be taking the helm as showrunner . Despite his long association with the Star Wars franchise, Fuller is probably best known for creating his own original visions on television in beloved cult series like Pushing Daisies and Hannibal. He has a flair for the weird, and he’s drawn to stories that are driven by characters as well as gripping plots. He’s currently working on a miniseries of Neil Gaiman’s classic novel American Gods for Starz. Obviously we can’t get too excited until we know what Fuller has planned, but I think cautious optimism is in order. Fuller knows the Trek universe, and he’s a smart writer who isn’t afraid to strike out in interesting new directions. Read 6 remaining paragraphs | Comments

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Fans rejoice: Bryan Fuller named showrunner on new Star Trek series

McDonald’s kale salad has more fat and calories than a double Big Mac

(credit: Tim Deering/Flickr ) In an effort to offer healthier menu items, McDonald’s has unveiled a new salad with a “nutrient-rich lettuce blend with baby kale,” shaved parmesan, and chicken (grilled or fried). Like many fast-food salads, it may seem like a healthy option at first, but it’s not. The salad, when paired with the restaurant’s Asiago Caesar Dressing, packs more fat, calories, and salt than a double Big Mac—that’s a sandwich with four beef patties. (credit: McDonald’s ) While the nutrition check on a McDonald’s item may not come as a shock, the unhealthy salad option falls into a bigger trend of restaurant meals—fast food or not, eating out is hard on your waistline and health. (credit: McDonald’s ) In one recent study, researchers found that 92 percent of large-chain, local-chain, and mom-and-pop restaurants served meals that exceeded the calorie intake for a healthy meal . The study included 364 meals from restaurants in three cities: Boston, San Francisco, and Little Rock, Arkansas. The meals covered American, Chinese, Greek, Indian, Italian, Japanese, Mexican, Thai, and Vietnamese-style cuisine. Read 4 remaining paragraphs | Comments

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McDonald’s kale salad has more fat and calories than a double Big Mac