By timothy from Slashdot's back-to-slight-chance-of-disaster department
Iceland's tiered system of air travel alerts went to orange last week
, then to red with a believed under-ice eruption of the volcano beneath the Dyngjujokull glacier
, but has now been eased back to orange
. "Observations show that a sub-glacial eruption did not occur yesterday. The intense low-frequency seismic signal observed yesterday has therefore other explanations," the Icelandic Met Office said. The office had therefore decided to move the aviation warning code from red to orange, it said, but since there was no sign the seismic activity was slowing down, an eruption could still not be excluded. The national police commissioner said separately that all restrictions on aviation had been cancelled. Airspace of 140 by 100 nautical miles above the volcano had been closed to aircraft on Saturday.Read Replies (0)
By timothy from Slashdot's hey-man-what's-the-exoskeleton-for? department
With three earthquakes of some significance in the news this weekend (Chile, California, and Iceland), it seems a good time to ask: If you live in an area of seismic danger, how are you prepared for an earthquake (or tsunami, mudslide, or other associated danger) and how prepared are you? Do you have a stash of emergency supplies, and if so, how did you formulate it? In the U.S. alone, it's surprising how many areas there are with some reasonable chance of earthquakes
, though only a few of them are actually famous for it — and those areas are the ones where everything from building codes to cultural awareness helps mitigate the risks. I'm not sure I'd want to be in a skyscraper in Memphis or St. Louis during a replay of the New Madrid quakes of 1811-1812
, which is probably worth worrying about
for those in the region. Beyond personal safety, do you have a plan for your electronics and data if the earth starts shaking?Read Replies (0)
By timothy from Slashdot's how-you-slice-and-dice-the-factors department
writes "Over at the Communications of the ACM, a new article — Computing's Narrow Focus May Hinder Women's Participation — suggests that Bill Gates and Steve Jobs should shoulder some of the blame for the dearth of women at Google, Facebook, Apple, Twitter and other tech companies. From the article: "Valerie Barr, chair of ACM's Council on Women in Computing (ACM-W), believes the retreat [of women from CS programs] was caused partly by the growth of personal computers. 'The students who graduated in 1984 were the last group to start college before there was personal computing. So if you were interested in bioinformatics, or computational economics, or quantitative anthropology, you really needed to be part of the computer science world. After personal computers, that wasn't true any more.'" So, does TIME's 1982 Machine of the Year deserve the bad rap? By the way, the ACM's Annual Report discusses its participation in an alliance which has helped convince Congress that there ought to be a federal law making CS a "core subject" for girls and boys: "Under the guidance of the Education Policy Committee, ACM continued its efforts to reshape the U.S. education system to see real computer science exist and count as a core graduation credit in U.S. high schools. Working with the CSTA, the National Center for Women and Information Technology, NSF, Microsoft, and Google, ACM helped launch a new public/private partnership under the leadership of Code.org to strengthen high school level computing courses, improve teacher training, engage states in bringing computer science into their core curriculum guidelines, and encourage more explicit federal recognition of computer science as a key discipline in STEM discussions.""Read Replies (1)
By timothy from Slashdot's pretty-good-drink-especially-with-honey-and-cream department
10 years ago today on this site, readers answered the question "Why is Java considered un-cool?
" 10 years later, Java might not be hip
, but it's certainly stuck around. (For slightly more than 10 years, it's been the basis of the Advanced Placement test for computer science, too, which means that lots of American students are exposed to Java as their first formally taught language.) And for most of that time, it's been (almost entirely) Free
, open source software
, despite some grumbling from Oracle
. How do you see Java in 2014? Are the pessimists
right?Read Replies (0)
By timothy from Slashdot's which-governement-holds-your-data? department
According to a Reuters report, China could have a new homegrown operating system by October to take on imported rivals such as Microsoft Corp, Google Inc and Apple Inc, Xinhua news agency said on Sunday. Computer technology became an area of tension between China and the United States after a number of run-ins over cyber security. China is now looking to help its domestic industry catch up with imported systems such as Microsoft's Windows and Google's mobile operating system Android. The operating system would first appear on desktop devices and later extend to smartphone and other mobile devices, Xinhua said, citing Ni Guangnan who heads an official OS development alliance established in March.
It would make sense for even a "homegrown" operating system to be based on existing ones, in the way Red Flag Linux is. Conceptually related: Earlier this year, Chinese company Coship Electronics announced
) a mobile OS called 960 OS.Read Replies (0)
By timothy from Slashdot's be-safe-out-there department
As numerous sources report
, an earthquake of magnitude 6.0 struck California
early Sunday morning, with an epicenter about 9 miles south of Napa. According to the San Francisco Chronicle's account, Some power lines down in western Contra Costa County, but Bay Area bridges appeared to be fine, according to the California Highway Patrol. There were widespread reports of power outages, gas leaks and flooding in the North Bay, with at least 15,000 Pacific Gas and Electric Co. customers without power in Vallejo, Napa, Rohnert Park, Santa Rosa and Sonoma. Police reminded motorists to stop at darkened intersections. ... In Benicia, several miles from the epicenter, the quake was strong enough to knock pictures off mantles.
Bay Area bridges appear to have survived the quake -- significant, in that the L.A. Times reports that USGS estimates
peg it as "the largest earthquake to strike the Bay Area since the Loma Prieta temblor of 1989," and says that injury reports (especially from glass) are streaming in from the area around Napa. The Times also has a larger estimate of customers suffering power outages: "more than 42,000" around the northern Bay Area. Unsurprisingly, social media channels are full of pictures showing some of the damage
For those in California, did you feel the quake? (And from how far away?)Read Replies (0)
By timothy from Slashdot's nickelback-quarterback-pedalback department
The premise behind Coin
is attractive: consolidate credit cards onto a single card-sized gadget
. However, on Friday the company announced a delay
in the release of its final version from this summer to spring of 2015, and in a way that angered many of the project's crowd-funding backers. The announcement of a delay was not only sudden, and quite close to the previously announced shipping date, but upset those who'd pre-ordered by outlining a confusing beta program that would involve an interim product release — recipients of the beta version (limited to 10,000) would have had to then pay $30 to upgrade to the final product. As CNET reports, the delay until 2015 remains, but with regard to that beta program,Coin has now reversed its stance. The beta program will be free -- meaning preorder customers who opt-in will no longer forfeit the $55 they paid and will still receive the finished Coin product next year. The program will also expand from 10,000 customers to 15,000. Regardless of whether your smartphone is running Apple's iOS or Google's Android operating system, preorder customers can opt-in to Coin's beta program through its app and will be eligible for a device if they fall within the 15,000-person threshold. The order is determined by when you bought your Coin.
< article continued at Slashdot
>Read Replies (0)
By timothy from Slashdot's will-take-credit-for-the-nobel-prize department
I am interested in a telescope for the use of some elementary and middle school aged relatives. Older and younger siblings, and parents, would no doubt get some scope time, too. Telescopes certainly come in a range of prices, from cheap to out of this world, and I am purely a duffer myself. But I enjoy looking at the moon and stars with magnification, and think they would, too. What I'm trying to find might be phrased like this: "the lowest priced scope that's reasonably robust, reasonably accurate, and reasonably usable for kids" -- meaning absolute precision is less important than a focus that is easy to set and doesn't drift. Simplicity in design beats tiny, ill-labeled parts or an incomprehensible manual, even if the complicated one might be slightly better when perfectly tuned. I'd be pleased if some of these kids decide to take up astronomy as a hobby, but don't have any strong expectation that will happen -- besides, if they really get into it, the research for a better one would be another fun project. That said, while I'm price sensitive, I'm not looking *only* at the price tag so much as seeking insight about the cluster of perceived sweet spots when it come to price / performance / personality. By "personality" I mean whether it's friendly, well documented, whether it comes intelligently packaged, whether it's a crapshoot as to whether a scope with the same model name will arrive in good shape, etc -- looking at online reviews, it seems many low-end scopes have a huge variance in reviews. What scopes would you would consider giving to an intelligent 3rd or 4th grader? As a starting point, Google has helped me find some interesting guides that list some scopes that sound reasonable, including a few under or near $100. (Here's one such set of suggestions
.) What would you advise buying, from that list or otherwise? (There are some ideas that sound pretty good in this similar question from 2000
, but I figure the state of the art has moved on.) I'm more interested in avoiding awful junk than I am expecting treasure: getting reasonable views of the moon is a good start, and getting at least some blurry rings around Saturn would be nice, too. Simply because they are so cheap, I'd like to know if anyone has impressions (worth it? pure junk?) of the Celestron FirstScope models, which are awfully tempting for under $50.Read Replies (0)
By timothy from Slashdot's especially-if-they've-got-grow-lights department
passes along this selection from New Scientist describing a (comparatively) low-tech means of scanning the skies for extraterrestrial civilizations
: The best-known technique used to search for tech-savvy aliens is eavesdropping on their communications with each other. But this approach assumes ET is chatty in channels we can hear.
The new approach, dubbed G-HAT for Glimpsing Heat from Alien Technologies, makes no assumptions about what alien civilisations may be like.
"This approach is very different," says Franck Marchis at the SETI Institute in California, who was not involved in the project. "I like it because it doesn't put any constraints on the origin of the civilisation or their willingness to communicate." Instead, it utilises the laws of thermodynamics. All machines and living things give off heat, and that heat is visible as infrared radiation. The G-HAT team combed through the catalogue of images generated by the Wide-field Infrared Survey Explorer, or WISE, which released an infrared map of the entire sky in 2012. A galaxy should emit about 10 per cent of its light in the mid-infrared range, says team leader Jason Wright at Pennsylvania State University. If it gives off much more, it could be being warmed by vast networks of alien technology – though it could also be a sign of more prosaic processes, such as rapid star formation or an actively feeding black hole at the galaxy's centre.Read Replies (0)
By timothy from Slashdot's what-do-you-trust-with-your-selfies department
links to CNN's explanation of what may be the future of cold (or at least lukewarm) storage at Facebook, which is experimenting with massive arrays of Blu-Ray discs for seldom-accessed user files
. Says the report: The discs are held in groups of 12 in locked cartridges and are extracted by a robotic arm whenever they're needed.
One rack contains 10,000 discs, and is capable of storing a petabyte of data, or one million gigabytes.
Blu-ray discs offer a number of advantages versus hard drives. For one thing, the discs are more resilient: they're water- and dust-resistant, and better able to withstand temperature swings. Their data can be restored more quickly, and they're easier to transport.
Most important, though, is cost. Because the Blu-ray system doesn't need to be powered when the discs aren't in use, it uses 80% less power than the hard-drive arrangement, cutting overall costs in half.Read Replies (0)