KentuckyFC writes "Last year, physicists calculated that a solar sail about a kilometer across with a mass of 300 kg (including 150 kg of payload) would have a peak acceleration of roughly 0.6g if released about 0.1AU from the Sun, where the radiation pressure is highest. That kind of acceleration could take it to the heliopause — the boundary between the Solar System and interstellar space — in only 2.5 years; a distance of 200 AU. In 30 years, it could travel 2500AU, far enough to explore the Oort Cloud. But the team has discovered a problem. Ordinary Newtonian physics just doesn't cut it for the kind of navigational calculations needed for this journey. Because the sail has to be released so close to the Sun, it becomes subject to the effects of general relativity. And although the errors these introduce are small, they become magnified over the course of a long journey, sending the sail roughly 1 million kilometers off course by the time it reaches the Oort Cloud. What these guys are saying is that if ever such a sail is launched (and the earliest estimate is 2040), the navigators will have to be proficient in a new discipline of relativistic navigation."

kamapuaa writes "According to a study published in the upcoming October issue of the American Journal of Preventive Medicine, the average US video game player is 35 years old, overweight, and tends toward depression. Specifically, female video game players tended towards depression, while males tended towards large BMIs. While the study itself points to several conclusions, one researcher noted: '... habitual use of video games as a coping response may provide a genesis for obsessive-compulsive video-game playing, if not video-game addiction.'" On the flip side, the Washington Post is running a story about the mental health benefits of playing video games.

Several readers have written to tell us of a ruling in the New York Supreme Court which will allow model Liskula Cohen to find out the identity of an anonymous blogger who posted some of her photos with captions including the words "psychotic," "skank," and "ho." The site was part of Blogger.com, and Google has already complied with a request for the author's IP address and email. "[Cohen's attorney] said that once his legal team tracks the e-mail address to a name, the next step will be to sue Cohen's detractor for defamation. He said he suspected the creator of the blog is an acquaintance of Cohen. The blog has not been operational for months. The unidentified creator of the blog was represented in court by an attorney, Anne Salisbury, who said her client voluntarily took the blog down when Cohen initiated legal action against it. ... the judge quoted a Virginia court that ruled in a similar case that nameless online taunters should be held accountable when their derision crosses a line. 'The protection of the right to communicate anonymously must be balanced against the need to assure that those persons who choose to abuse the opportunities presented by this medium can be made to answer for such transgressions.'"

goompaloompa writes "In the Japan Times, Bruce Schneier writes that a passing conversation online is not what it may seem and that maintaining your privacy is becoming even more difficult as social media and cloud computing become the norm. Furthermore, while users in Japan may think they are secure, their level of protection may vary when the computers that store their data are overseas. At the root of the problem is a new generation gap: old laws incapable of covering current-day scenarios. Quoting: 'Twenty years ago, if someone wanted to look through your correspondence, they had to break into your house. Now, they can just break into your ISP. Ten years ago, your voicemail was on an answering machine in your office; now it's on a computer owned by a telephone company. ... We need comprehensive data privacy laws, protecting our data and communications regardless of where it is stored or how it is processed. We need laws forcing companies to keep it private and delete it as soon as it is no longer needed, and laws giving us the right to delete our data from third-party sites. And we need international cooperation to ensure that companies cannot flaunt data privacy laws simply by moving themselves offshore."

angry tapir writes "MenuetOS is an operating system written entirely in assembly language. As a result it's extremely quick and compact (it can even fit on a floppy disk, despite having a GUI). It can run Quake. Two of the developers behind MenuetOS took time out to talk about what inspired them to undertake the daunting task of writing the operating system, the current state of Menuet and future plans for it."

Death Metal sends word that the owners of URL-shortening service tr.im are in the process of releasing the project's source code and moving it into the public domain. This comes after reports that the service may shut down and that they were entertaining offers from prospective buyers. From a post on the site's blog: "It is our hope that tr.im, being an excellent URL shortener in its own right, can now begin to stand in contrast to the closed twitter/bit.ly walled garden: it will become a completely open solution owned and operated by the community for the benefit of the entire community." They plan to complete the transition by September 15th, and the code will be released under the MIT license. In addition, "tr.im will offer all link-map data associated with tr.im URLs to anyone that wants it in real-time. This will involve a variety of time-based snapshots of aggregated destination URLs, the number of tr.im URLs created for any given destination URL, and aggregate click data."

Here are diametrically opposing view on what authors should do about the upcoming deadline to opt out of the Google Books settlement. Miracle Jones writes "The William Morris Agency has come out strongly against the Google Books settlement for its clients, citing the fact that the settlement creates a non-competitive marketplace for a whole new product (orphan books), in addition to containing provisions that will make it impossible for writers to remove books from the database after 27 months have passed: 'We believe that the license being given to Google to publish and display with impunity out-of-print "orphan" works (where the rights owner is unknown and estimated by the Financial Times to be between 2.8 and 5 million books out of 32 million books protected by copyright in the United States) will open the door to establishing Google as the most comprehensive database, potentially a monopoly, with unfair bargaining power.'" On the other side of the debate, James Gleick writes "With the deadline approaching for 'opting out' of the Google Books settlement, the Authors Guild has posted an aggressive explanation of who it thinks should do that: no one. Not a single author in the world, it argues, stands to benefit from removing himself or herself from the class. This comes as part of a new set of 'Answers' meant to push back against what the authors group thinks is widespread confusion about the settlement; they also address questions about just what kind of money we might be talking about, and what kind of control authors will have over Google's use of their work."

maximus1 writes "A 59-year-old election law prevents Japanese candidates from blogging and twittering during the campaigning window. So, on Tuesday, 1,370 Japanese will stop all online activity. Candidates get a brief slot on public television, usually in the early or late-night hours when few are watching, to make their pitch. The rest of the time is spent campaigning in neighborhoods, walking through the streets, and making speeches outside railway stations. If opinion polls are to be believed, the Aug. 30 election could be the law's last stand. Voter turnout among the young is poor, and some believe it's because the old-fashioned method of campaigning has failed to energize a population that is surrounded by digital media from the day they are born. 'The Internet must be made available for election campaigns as soon as possible,' the Asahi Shimbun, Japan's second-largest newspaper, wrote in a recent editorial."

Funcom announced today that they are working on the first expansion to Age of Conan, titled Rise of the Godslayer. In addition to high-level content, it contains new objectives for lower levels as well, in an effort to fill out the leveling process. It also introduces new factions that are at war with each other: "Faction gameplay plays a large role in Rise of the Godslayer, presenting the player with choices that earn them both allies and enemies in Khitai. Through questing and adventure players can advance through faction ranks, rewarding them with treasures such as epic new armor and weapons. Players can choose to continue their adventures with existing characters, acquiring new combat abilities and spells through a robust alternate advancement system, or start over again as a Khitan — an all-new culture." A brief trailer has been posted, and Eurogamer has a more detailed preview of the new content.

BobB-nw writes "University of California at San Diego researchers Tuesday are presenting a paper (PDF) describing software that they say could make data center networks massively scalable. The researchers say their PortLand software will enable Layer 2 data center network fabrics scalable to 100,000 ports and beyond; they have a prototype running at the school's Department of Computer Science and Engineering's Jacobs School of Engineering. 'With PortLand, we came up with a set of algorithms and protocols that combine the best of layer 2 and layer 3 network fabrics,' said Amin Vahdat, a computer science professor at UC San Diego. 'Today, the largest data centers contain over 100,000 servers. Ideally, we would like to have the flexibility to run any application on any server while minimizing the amount of required network configuration and state... We are working toward a network that administrators can think of as one massive 100,000-port switch seamlessly serving over one million virtual endpoints.'"

Occamboy writes "I wrote a slightly successful (30,000+ copies sold) computer communications textbook a number of years back that was published via the traditional textbook publishing route. The royalties were nice, but, frankly, the bigger money came from the boost in my professional standing (I'm a practicing engineer, not a professor). I also felt bad when the publisher hiked the price dramatically every year because students were stuck once a professor adopted a text — $50 for a smallish paperback seemed very high (although I like to think what they learned was worth it!). I'm thinking of writing another textbook, this time about the practice of software engineering in critical systems, using the experience I've gained in the decades I've spent developing, and managing the development of, software-driven medical devices. Poking around on the Net, I've found several intriguing options for distributing open source texts, such as Flatworld Knowledge, Lulu, and Connexions. This concept of free or inexpensive texts intrigues me — the easy adoption and lack of price-gouging. Do any Slashdotters have experience with this new paradigm? Any suggestions or experiences to share from authors, students, and/or professors, who've written, read, or adopted open source or low-cost texts from any source?"

Beloit College has come out with its annual Mindset List of what the incoming class (of 2013) has always known and has never known. "For these students, ... the Green Giant has always been Shrek, not the big guy picking vegetables. They have never used a card catalog to find a book. ... Tattoos have always been very chic and highly visible. ... Rap music has always been mainstream. ... Except for the present incumbent, the President has never inhaled. ... Amateur radio operators have never needed to know Morse code."

Concerned Citizen writes "The Australian Federal Police database has been hacked, although 'hacked' might be too strong a word for what happens when someone gains access to a MySQL database with no root password. Can you be charged with breaking and entering a house that has the door left wide open? Maybe digital trespassing is a better term for this situation. 'These dipshits are using an automatic digital forensics and incident response tool,' the hacker wrote. 'All of this [hacking] had been done within 30-40 minutes. Could of [sic] been faster if I didn't stop to laugh so much.'"

An anonymous reader writes "In the UK, a full version of Windows 7 Home Premium is going to cost less than half the price Americans will have to pay, and in fact less than Americans have to pay just for the upgrade-only edition. Full details and prices were published in an article on CNet, in which it was concluded that, at least for the time being, Microsoft is honoring the prices it set for the now-discontinued European version of Win7, which did not contain Internet Explorer 8 and was only available as a full-install edition."

stadium writes "An oil-filled transformer exploded at the Sayano-Shushenskaya power plant in Siberia, destroying three turbines and bringing down the ceiling of the turbine hall, which then violently flooded. The dam itself did not sustain any damage. It is unclear how many people were killed, but with 12 confirmed deaths and as many as 64 still missing (all presumed dead), this is a serious incident. The huge transformer had enough oil in it to produce a three-mile-long oil spill slowly moving downriver. BBC News reports with three separate videos. The dam produces a quarter of the total energy of RusHydro (whose stock thus took a steep dive at London Stock Exchange) and also feeds the world's largest aluminum smelter. The damages will take years to repair."