Slashdot Mirror

Parz writes "Even the best of game developers can leave a big dirty glitch buried within its products that can turn a gameplay experience on its head (sometimes literally). Gameplayer has trawled through the web to locate video footage of some of the more amazing and hilarious examples of glitches in games. It acts as an interesting insight into the bugs that some games — especially today — ship with. What interesting bugs have you encountered?"

Jimmy Zimms writes "Microsoft's ASP.NET MVC is an extension built on the core of ASP.NET that brings some of the popular practices and ease of development that were popularized by Ruby on Rails and Django to the .NET developers. Scott Guthrie, the inventor of ASP.NET, just announced that Microsoft is open sourcing the ASP.NET MVC stack under the MS-PL license. 'I'm excited today to announce that we are also releasing the ASP.NET MVC source code under the Microsoft Public License (MS-PL). MS-PL is an OSI-approved open source license. The MS-PL contains no platform restrictions and provides broad rights to modify and redistribute the source code.' Here's the text of the MS-PL.

theatrecade was one of a few folks to note that Google Labs has added the five-second rule to email. Once upon a time this rule only applied to delicious foodstuffs dropped on the floor, but at long last you can change your mind on that email to your boss or ex. We shall see peace in our lifetimes.

alaskana98 writes "Alaska's Mt. Redoubt volcano has erupted 3 times, with the first event starting at 10:38 PM Alaska standard time. The ash cloud is estimated to be higher than 50,000 feet. So far, only light ash fall is predicted for areas north of Anchorage."

billlava writes "Tired of Team Fortress 2 servers that lie in order to attract players, engineers at Valve (creators of the Half Life franchise) have come up with a way to weed out servers that give false information about the number of players online, or custom server options. 'After kicking around some proposals, we came up with a simple system built around the theory that player time on a server is a useful metric for how happy the player is with that server. It's game rules agnostic, and we can measure it on our steam backend entirely from steam client data, so servers can't interfere with it. We already had this data for all the TF2 servers in the world, allowing us to try several different scoring formulas out before settling on this simple one that successfully identified good & bad servers.' Of course, this only works with their games running on Steam."

superglaze (ZDNet UK) writes "Google is gearing up to launch cookie-based 'interest-based' advertising, which involves monitoring the user's passage across various WebSense partner sites. The idea is to have better-targeted advertising, which is not a million miles away from what Phorm is trying to do — the difference, it seems at first glance, is that Google is being relatively up-front about its intentions."

hyades1 writes "Gizmodo reports that Verizon is sending out notification letters infested with virtually-indecipherable legalese. In their sneaky, underhanded way, they're informing you that you have 45 days to opt out of their plan to share your personal data with 'affiliates, agents and parent companies.' That data can include, but isn't limited to, 'services purchased (including specific calls you make and receive), billing info, technical info and location info.' If you view your statement on-line, you won't even get the letter. You'll have to access your account and view your messages. However, Read Write Web says the link provided there, called the 'Customer Proprietary Network Information Notice,' was listed as 'not available.' No doubt Verizon would like to reassure you that everyone they're going to hand your personal data over to will have your best interests at heart."

Redpill82 writes "It has been confirmed that Apple co-founder Steve Wozniak will be a contestant on the new season of Dancing with the Stars starting on March 9. Did ABC determine that ratings were low with the technology community? I know I'll be interested in seeing how far Mr. Wozniak goes in the competition."

Henway writes "Google is adding the option to Google Maps to place your whereabouts either via cell phone towers or GPS. Think 'locator beacon.' Paraphrased: This would be good for people wanting to let their friends know where they are or for parents wanting to know where their children are at all times."

theraindog writes "Intel's X25-E Extreme SSD is easily the fastest flash drive on the market, and contrary to what one might expect, it actually delivers compelling value if you're looking at performance per dollar rather than gigabytes. That, combined with a rackmount-friendly 2.5" form factor and low power consumption make the drive particularly appealing for enterprise RAID. So just how fast are four of them in a striped array hanging off a hardware RAID controller? The Tech Report finds out, with mixed but at times staggeringly impressive results."

Timmus writes "Gamers holding onto Windows XP may not have to fear sluggish performance when Windows 7 debuts. While Windows Vista's gaming performance was pretty spotty at launch, the Windows 7 beta build seems to handle most games well. Firingsquad has tested the Windows 7 beta against Windows XP SP3 and Vista SP1 on midrange and high-end gaming PCs across 7 different games. While the beta stumbles in a couple of cases, overall it performs within a few percentage points of Windows XP, actually outrunning XP in multiple benchmarks."

theraindog writes "Although the solid-state storage market is currently dominated by flash-based devices, you can also build an SSD out of standard system memory modules. Hardware-based RAM disks tend to be prohibitively expensive, but ACard has built an affordable one that supports up to 64GB of standard DDR2 memory and features dual Serial ATA ports to improve performance with RAID configurations. And it's driver-free and OS-independent, too. The Tech Report's in-depth review of the ANS-9010 RAM disk pits it against the fastest SSDs around and nicely illustrates the drive's staggering performance potential with multitasking and multi-user loads. However, it also highlights the device's shortcomings, including the fact that SSDs are more practical for most applications."

hyades1 writes in to let us know that Sprint has extended to Jan. 31 the time in which subscribers can switch carriers without paying an early termination fee. "Last month we learned that Sprint was increasing its administrative fee to $0.75, giving customers until January 1 of this year to back out without a penalty. It seems that $0.75 wasn't going to cut it as Sprint has raised its fee yet again, this time to $0.99. Customers now have through January 31 to sever ties sans-ETF, so if you missed the boat last month you're in luck. Though some customer care reps apparently aren't yet aware of the change, we did confirm it with Sprint so keep trying and as always, contacting them via chat seems to go a bit more smoothly than calling them up."

grunaura writes "South Korean researchers have devised a way to create graphene sheets one centimeter square using a hydrocarbon vapor on heated nickel. It's touted as being more efficient than the current process where graphene sheets are pressed, and there is evidence that 'the quality of graphene grown by chemical vapour deposition is as high as mechanically cleaved graphene.' Graphene is relatively new, but not to Slashdot. This round of news highlighting the technology focuses on the bendable nature of graphene sheets, as opposed to the memory applications or capacitive properties discussed here previously. These films are the closest we have come to superconductors at room temperature."

The Raindog writes "The power supply is perhaps the most overlooked element of a modern PC, and yet it's the one component that can irreparably damage the rest of a system. The market is littered with generic PSUs that are often much cheaper than name-brand alternatives, but can you trust them? The Tech Report aims to find out in its latest power supply round-up, which compares the performance, efficiency, and noise levels of a collection of reputable PSUs with some budget, no-name competition. As it turns out, any money you save on a generic PSU purchase will likely cost you more in the long run."

It appears that the exploit in IE briefly mentioned a few days ago is causing a serious reaction: SteveAU writes "Microsoft has begun flooding media outlets with information advising users to switch to an alternate browser while a serious security flaw is being patched. The flaw, which affects all versions of Microsoft Internet Explorer, is manifested via malware and has infected over 6,000 sites thus far. Microsoft states: 'The vulnerability exists as an invalid pointer reference in the data-binding function of Internet Explorer. When data binding is enabled (which is the default state), it is possible under certain conditions for an object to be released without updating the array length, leaving the potential to access the deleted object's memory space. This can cause Internet Explorer to exit unexpectedly, in a state that is exploitable.'" According to the BBC report, though, Microsoft itself is only asking that users be "vigilant while it investigated and prepared an emergency patch"; it's outside experts who say to dump IE (at least for now).

Update: 12/16 21:11 GMT by KD : Microsoft will issue an emergency critical update for IE tomorrow.

Toren Altair brings news that NASA and the Ad Astra Rocket Company finalized a Space Act Agreement earlier this week to test the Variable Specific Impulse Magnetoplasma Rocket (VASIMR) on the International Space Station. The agreement hinges on a series of requirements for the thruster's performance and efficiency in ground-based tests. "The primary technical objective of the project is to operate the VASIMR VF-200 engine at power levels up to 200 kW. Engine operation will be restricted to pulses of up to 10 minutes at this power level. Energy for these high-power operations will be provided by a battery system trickle-charged by the ISS power system. These tests will mark the first time that a high-power, steady-state electric thruster will be used as part of a manned spacecraft." Reader clarkes1 points out related news of a runway trial for Virgin Galactic's WhiteKnightTwo, the mothership that is designed to carry SpaceShipTwo from the ground to 50,000 feet. A very brief video shows the oddly-shaped plane moving down a runway under its own power.

cybergenesis2008 points us to a summary of research out of Harvard Medical School in which a set of genes known to affect aging in yeast was found to affect aging in mice as well. The genes, called sirtuins, perform two particular tasks; regulating which genes are "on" and "off," and also helping to repair damaged DNA. As an organism ages, the frequency of damage to DNA increases, leaving less time for the sirtuins' regulatory tasks. The increasingly unregulated genes then become a significant factor in aging. Realizing this, the researchers "administered extra copies of the sirtuin gene [to the mice], or fed them the sirtuin activator resveratrol, which in turn extended their mean lifespan by 24 to 46 percent." We discussed the plans for this research a few years ago.

seanpark writes "Who will President Elect Obama select for the recently established post of Copyright Czar? Biden has a longstanding relationship with Big Content, and he was partly responsible for the PRO-IP Act that created the position. The short list according to the article includes a few lobbyists (who would likely be disqualified by stringent ethical guidelines) and Lawrence Lessig, who was a technology adviser to the Obama Campaign."

Banquo writes "I have a friend who has a small datacenter (SQL/Mail/IIS/File Repository ... 5 or 10 servers) and he was saying that his boss wants to see some kind of 'visual display of changing metrics' — Net/server/sql stats with moving lines and graphs and pretty colors. Basically they want something to display on a big LCD panel that will give a tiny bit of 'Wow' factor to customer visits. Back in my datacenter days I saw a million packages to do this stuff, but I was always blessed with an IT budget for metrics/monitoring. Can anyone suggest a free/cheap package that will make pretty moving pictures, moving lines, graphs, etc. from server/net stats? There's no worry about actually using this for real data tracking or metrics purposes. He has a pretty robust log/alert/metrics setup, but command line is a little too dry for marketing purposes. I jokingly suggested he just use a looped flash animation but he actually does want stats that are coming from and reflect his environment. Anyone know of any cheap or free data center stats/metrics 'Eye Candy' software out there?" Better yet, can you think of any particularly interesting ways to display that sort of information?

theraindog writes "We've already seen Intel's first X25-M solid-state drive blow the doors off the competition, and now there's a new X25-E Extreme model that's even faster. This latest drive reads at 250MB/s, writes at 170MB/s, and offers ten times the lifespan of its predecessor, all while retaining Intel's wicked-fast storage controller and crafty Native Command Queuing support. The Extreme isn't cheap, of course, but The Tech Report's in-depth review of the drive suggests that if you consider its cost in terms of performance, the X25-E actually represents good value for demanding multi-user environments."

ric482 writes "With the release of the Mozilla Foundation's 2007 financial report, questions have been raised by the IRS, who are due to perform an audit on the non-profit organization behind the massively popular Firefox browser. Last year, the Foundation received $66 million of its total $75 million revenue (88 percent) from search engine maestros Google, so the IRS are looking for blood over the organization's tax exempt status. Back in 2006, Mozilla got $59.5 million from Google — around 85 percent of the organization's revenue. Google and Mozilla are part of a 'you scratch my back, I'll pay your bills' sort of agreement, with the Google search bar firmly placed in the toolbar, and on the default homepage. Things were a bit rocky a couple of months back when Google unveiled the Beta-run of its Chrome browser, but Mozilla and Google hugged it out and sealed a deal that will last for another three years. That deal will expire in November 2011."

superglaze writes to tell us that VMware has announced a large effort behind their Mobile Virtualization Platform, promising the possibility of multiple operating systems on mobile devices. "The company described MVP as a 'thin layer of software' that will be embedded in handsets and 'be optimized to run efficiently on low-power-consuming and memory-constrained mobile phones.' Asked whether MVP would offer something different from the abstraction already provided by mobile Java, VMware's European product director Fredrik Sjostedt told ZDNet UK that MVP would require less recoding. 'If you want to have an application run on a Java-specific appliance, you need to code it for Java,' Sjostedt said. 'What we're introducing with MVP is an [embedded] abstraction layer below that, between the physical hardware and the software layer.'"

ewenc writes "A psychology study of hundreds of people waiting for front-row access to U2 concerts points to the best ways to cut in line and not get caught. 'Super-fans' are most irked by queue-jumpers. People were equally peeved whether someone cut in front or behind, and cutters who jumped beside a friend were less likely to attract scorn."

Parz writes "Mods have been an important part of gaming for well over 15 years. Not only have they provided plenty of additional free gaming to players, but they've acted as a launch pad for independent and amateur programmers to show off their skills to potential employers. This Gameplayer article highlights the programmers who are doing it best, and what mods have made biggest and most enjoyable impact on gaming. The article not only provides details for each game, but also links to the downloads, and is a great resource for those interesting in getting up-to-date with this exciting scene." Obviously, this list will seem incomplete to anyone whose favorite mod was omitted. What mods contributed most to your enjoyment?

theraindog writes "More than a year and a half after the first terabyte hard drives became widely available, Seagate has reached the next storage capacity milestone. With 1.5 terabytes, the latest Barracuda 7200.11 serves up 50% more capacity than its peers, and at a surprisingly affordable $0.12 per gigabyte. But Seagate's decision to drop new platters into an old Barracuda shell may not have been a wise one. The Tech Report's in-depth review of the world's first 1.5TB hard drive shows that while the latest 'cuda is screaming fast in synthetic throughput drag races, poor real world write speeds ultimately tarnish its appeal."

hackingbear writes "The National Debt Counter, erected in 1989 when the US debt was 'merely' a tiny $2.7 trillion, has been moving so much that it recently ran out of digits to display the ballooning figure: $10,150,603,734,720, or roughly $10.2 trillion, as of Saturday afternoon. To accommodate the extra '1,' the clock was hacked: the '1' from "$10.2" has been moved left to the LCD square once occupied solely by the digital dollar sign. A non-digital, improvised dollar sign has been pasted next to the '1.' It will be replaced in 2009 with a new clock able to track debt up to a quadrillion dollars, which is a '1' followed by 15 zeros. That should be good enough for a few more months at least, I believe." Adds reader MarkusQ, "I know Dick Cheney has assured us that 'Deficits don't matter' but I can't help wondering if we should be fixing the problem rather than the sign."

hackingbear writes "Wired, citing a paper published in Science magazine, reports that Harvard scientists may have found a safer way of giving a flake of skin the biologically alchemical powers of embryonic stem cells by turning adult cells into versatile, embryonic-like cells without causing permanent damage. The technique involves 'adding cell-reprogramming genes to adenoviruses, a type of virus that infects cells without affecting their DNA.' Four-month trials on mice demonstrated that the resulting stem cells are free from unpredictable cancer-inducing mutations. This is definitely a breakthrough in stem cell research." Additional coverage is available at Yahoo, and Science hosts the research paper, although you'll need a subscription to see more than the abstract.

Mike Sheppard writes "I'm a graduate student in Statistics at Michigan State University and spent some time analyzing past US presidential elections to determine how close they truly were. The mathematical procedures of Linear Programming and 0-1 Integer Programming were used to find the optimal solution to the question: 'What is the smallest number of total votes that need to be switched from one candidate to another, and from which states, to affect the outcome of the election?' Because of the way the popular and electoral votes interact, the outcome of the analysis had some surprising and intriguing results. For example, in 2004, 57,787 votes would have given us President Kerry; and in 2000, 269 votes would have given us President Gore. In all there have been 12 US Presidential elections that were decided by less than a 1% margin; meaning if less than 1% of the voters in certain states had changed their mind to the other candidate the outcome of the election would have been different."

theraindog writes "High-end graphics cards get all the glory, but most folks have a difficult time justifying $300 or more for a single PC component. But what if you could get reasonable performance in all the latest games from a budget card costing as little as $70? With game developers targeting the relatively modest hardware available in current consoles and trickle-down bringing cutting-edge features down to budget price points, today's low-end graphics cards are more capable than ever. To find out which one offers the best value proposition, The Tech Report has rounded up eight graphics cards between $70 and $170, comparing their game performance, Blu-ray playback acceleration, noise levels, and power consumption, with interesting results."

hackingbear writes "According to a report by Hong Kong newspaper Mingpao Daily (poor Google translation), quoting the Director of Jiuquan Launch Center, China is set to build a space station by snapping together four spaceships (Shenzhou 7, 8, 9, and 10), to be launched sequentially. Though other reports indicates that taikonauts abroad SZ 7 will return to Earth on September 28, the official said the ship will remain in the orbit to be docked with unmanned Shenzhou 8 and 9. Finally, the manned spaceship Shenzhou 10 will be launched and dock with the other three, completing the space station." A story at Space.com also briefly mentions Shenzhous 8 and 9 (with no mention of number 10), and adds that China has selected its first spacewalker.

Parz writes "Gameplayer has gone live with their winners for the best gaming laptops money can buy as of Q3 2008. The analysis is broken into three sections to cater for three different budget requirements. There is a detailed explanation of why each laptop was selected, going into each hardware component individually. Regular Slashdot users will remember the site's article from a few weeks ago, which analysed the Best Gaming PCs that Money can Buy. Prices may vary depending on where you live."

theraindog writes "Intel is entering the storage market with an ambitious X25-M solid-state drive capable of 250MB/s sustained reads and 70MB/s writes. The drive is so fast that it employs Native Command Queuing (originally designed to hide mechanical hard drive latency) to compensate for latency the SSD encounters in host systems. But how fast is the drive in the real world? The Tech Report has an in-depth review comparing the X25-M's performance and power consumption with that of the fastest desktop, mobile, and solid-state drives on the market."

Paul Williams writes "Develop Magazine has an interesting profile up looking at UK studio Splash Damage, charting its humble beginnings as a Quake 3 mod team through to its status as one of Britain's leading studios — it's currently developing a new game for Bethesda. Most interesting is the assertion by studio founder Paul Wedgwood that UK studios should shake off their low-rent reputation and start modeling their businesses on the likes of Valve, id, and the other envied American independents: 'We'd been to the US and seen companies like Ritual, Gearbox and id, and to us it seemed like the game development industry was seen as better in the US. People sat in cool chairs in cool offices surrounded by action figures — it was nothing like the UK's approach, which was more like a workhouse.'"

stylemessiah writes "The winner of several Eureka Science Awards in Australia is a crafty chick who devised a way to create solar cells cheaply using a pizza oven, nail polish and an inkjet printer. This was developed to address the high cost of cells and in particular for the world's poorest regions. She wanted to give the ~2 billion people around the world who don't have electricity the gift of light and cheap energy. This could have profound (and a good profound) implications for education and health in those in the poorest regions in the world. And it all started with her parents giving her a solar energy kit when she was 10..."

Paul Williams writes "Develop Magazine has posted a fascinating multi-part interview with Sam Houser, president and founder of Grand Theft Auto developer Rockstar Games. Houser is rarely quoted outside of press releases, and almost never does interviews. So, reading his frank views on things like Rockstar's critics, the creative secrets that make games like GTA IV a success, and how the developer rejects things like focus testing — a common practice at the likes of EA but an 'anathema to creativity' according to Houser — is very interesting. Houser has even written a mini biography of his career with some fun references to the Hot Coffee scandal: 'July 2005: Residue code found in San Andreas. Hackers modify it and it turns into scandal known as "Hot Coffee." Get dragged into legal nightmare, ending in trip to Washington in February 2006 to sit in front of federal trade commission staff — for nine hours.'"

hackingbear writes "Despite prior skepticism over effectiveness, China claims successful application of weather intervention to ensure a stunning Olympic opening ceremony, according to a report by the official Xinhua News Agency: 'We fired a total of 1,104 rain dispersal rockets from 21 sites in the city between 4 p.m. and 11:39 p.m. on Friday, which successfully intercepted a stretch of rain belt from moving towards the stadium,' said Guo Hu, head of the Beijing Municipal Meteorological Bureau (BMB). While there wasn't a single drop of rain over the National Stadium — also known as the Bird's Nest — during the opening ceremony from 8:00pm-12:00am on August 8, the weather services said that Baoding City of Hebei Province, to the southwest of Beijing, received the biggest rainfall of 100 millimeters Friday night, and Beijing's Fangshan District recorded a rainfall of 25 millimeters."

Ifandbut was one of several readers to point out the arrival in Oshkosh of the first practical jetpack. It was invented by a New Zealander Glenn Martin, who has been working on the idea for 27 years. He plans to sell the gizmos for somewhere in the neighborhood of $100K. While previous attempts at jetpacks have flown for at most a couple of minutes, Mr. Martin's invention can stay aloft for half an hour. Both "practical" and "jetpack" may need quotation marks, however: The device is huge and it's incredibly noisy. And, "It is also not, to put it bluntly, a jet. 'If you're very pedantic,' Mr. Martin acknowledged, a gasoline-powered piston engine runs the large rotors. Jet Skis, he pointed out, are not jets, and the atmospheric jet stream is not created by engines. 'This thing flies on a jet of air,' he said. Or, more simply, it flies."

passionfingers writes "My business users regularly have to tweak large (>32MB text) data files manually. Overlords charged with verifying the aforementioned changes have requested that the little people be provided with a new file editor that will track changes made to a file (as a word processor does). I have scouted around online for such an animal, but to no avail — even commercial offerings like UltraEdit32 don't offer such a feature. Likewise on the OSS side of the fence, where I expected a Notepad++ plugin or the like, it appears that the requirements to a) open a file containing a large volume of text data and b) track changes to the data, are mutually exclusive. Does anyone in the Slashdot community already have such a beast in their menagerie? Perhaps there is there a commercial offering I've missed, or could someone possibly point me to their favorite (stable) OSS project that might measure up?"

The Raindog sends us a particularly timely showdown article comparing seven 2.5" mobile hard drives, four of them HDs and three SSDs, across a wide range of application, file-copy, power-consumption, and noise-level tests. Tom's Hardware was recently forced to issue a correction to a claim, which we discussed here, that SSDs aren't actually much more power-thrifty than HDs. The Tech Report's in-depth comparison provides some data points on the question of whether solid-state storage is ready to supplant traditional mechanical hard drives, but notes that the price disparity is still substantial.

Talinom writes "ZDNet has an article sure to raise the hackles of any self-respecting geek. They report that housewives buying small laptops like the Asus EE are causing Linux usage for that demographic to spike. A reporter for Tech-On states that 'Retailers and contract manufacturers in Taiwan say that novice PC users there, like students and housewives, tend to buy the Linux version of the Eee PC701, while geeks go for Windows XP.'"

FiReaNGeL writes with an excerpt from a story at e! Science News: "Taking advantage of a unique cosmic configuration, astronomers have measured an effect predicted by Albert Einstein's theory of General Relativity in the extremely strong gravity of a pair of superdense neutron stars. Essentially, the famed physicist's 93-year-old theory passed yet another test. Scientists at McGill University used the National Science Foundation's Robert C. Byrd Green Bank Telescope (GBT) to do a four-year study of a double-star system unlike any other known in the Universe. The system is a pair of neutron stars, both of which are seen as pulsars that emit lighthouse-like beams of radio waves."

I Said More Ham writes "Minnesota's attorney general will drop the state's efforts to fine underage buyers of violent videogames after a high court struck down a state law as unconstitutional. The Entertainment Software Association, one of the plaintiffs in the case, announced Monday that the state paid $65,000 in attorney's fees and expenses."

alias420 writes "You can save on long distance and air time with the new 3G iPhone. iPhone Hacks has the scoop on an upcoming iPhone 2.0 App named 'iCall', that will let you switch between VoIP and normal GSM calls anywhere in North America. You can check out their recently released video proof of call switching in action . This software requires no hacks and will be completely official. Here is a little quote from the developer: 'We are part of the Apple iPhone developer program. This is not an application for you naughty jail breakers ;-)'"

superglaze writes in to note that according to Nokia's software chief, its plans for open source include getting developers to accept things like DRM, commercial IP rights, and SIM locks. "Jaaksi admitted that concepts like these 'go against the open-source philosophy,' but said they were necessary components of the current mobile industry. 'Why do we need closed vehicles? We do,' he said. 'Some of these things harm the industry but they're here [as things stand]. These are touchy, emotional issues, but this dialogue is very much needed. As an industry, we plan to use open-source technologies, but we are not yet ready to play by the rules; but this needs to work the other way round too.'"

courteaudotbiz writes "Canada and all members of the U5 (United States, Germany, United Kingdom, France and New-Zealand) state that they all suffered government-directed attacks between June and September 2007. These seemed to be Chinese government sponsored attacks." It's a Google translation, so it's a bit hard to read, but it seems to be a recurring story these last few months.

FiReaNGeL notes research presented this morning at Penn State on the discovery of a new, ultra-small species of bacteria that has survived for more than 120,000 years within the ice of a Greenland glacier at a depth of nearly two miles. From the psu.edu announcement: "The microorganism's ability to persist in this low-temperature, high-pressure, reduced-oxygen, and nutrient-poor habitat makes it particularly useful for studying how life, in general, can survive in a variety of extreme environments on Earth and possibly elsewhere in the solar system. This new species is among the ubiquitous, yet mysterious, ultra-small bacteria, which are so tiny that they are able to pass through microbiological filters. Called Chryseobacterium greenlandensis, the species is related genetically to certain bacteria found in fish, marine mud, and the roots of some plants."

Joe Kauzlarich writes "Finally, someone has done us all the great service of publishing a book about the second most well-known compiler compiler, Terence Parr's Antlr, and it was written, moreover, by Parr himself and published as part of the somewhat-usually-reliable Pragmatic Bookshelf series. Take note, while it requires a JVM to run, Antlr is not just for Java developers; it generates compilers in Python, Ruby, C, C++, C# and Objective-C. Also note that this book is more than just an elaborated man-page; it is also an excellent introduction to the concepts of compiler and parser design." Keep reading for the rest of Joe's review. The Definitive ANTLR Reference author Terrance Parr pages 361 publisher Pragmatic Bookshelf rating 9 reviewer Joe Kauzlarich ISBN 978-0-9787392-5-6 summary introduction to parser/compiler design using ANTLR First off, I have no preference between Yacc-style parsers, JavaCC and Antlr; I've never used Yacc, have used JavaCC in college and have since played with Antlr and am just as ignorant in the use of them all. The fundamental difference is that Antlr is a top-down LL(*) (simply-put, variable-lookahead) parser generator while Yacc is a bottom-up LR parser generator. JavaCC is also top-down, but employs a different parsing strategy. The book describes the meanings of these terms in simple detail.

I happen to have learned in my experience that good documentation for any of these products is hard to come by and difficult to follow, simply because the subject matter is obtuse and few, until now, have ventured to write expository literature to explain the myriad concepts to the non-academician. Of the three mentioned above, Antlr appears to be the more 'modern' and can also generate lexers from within the same grammar definition file, so the notions are integrated. Antlr also has a useful IDE called AntlrWorks with visualization features, causing grammar construction to be far simpler for a beginner.

That said, I don't wish to use this review to push Antlr over its alternatives, but only to press the point that this book serves not only to introduce Antlr to the average programmer, but the concepts of parser design as well. The concepts become necessary to understand while writing and debugging grammars, as not everything written in Backus-Naur Form will produce a working parser, and this holds true for any parser generator. Learning what works and what doesn't, as well as what workarounds are available, is key to becoming proficient in Antlr, Yacc or JavaCC. Once proficiency is acheived, you'll have the valuable skill of producing domain-specific languages on demand.

Terence Parr, as mentioned before, is not only the author and maintainer of Antlr, but he wrote the book as well. Antlr is on its long-awaited third version and has been maintained by Parr throughout the project's lifetime. He is a university professor and himself developed the path-breaking LL(*) parsing strategy employed by Antlr.

Parr begins with a one chapter background in computer language design before diving into a simple example of a parser for basic integer expressions. Part II is the meat of the book, describing various aspects of writing grammars for Antlr. Generally speaking, he covers the basic semantics of grammar writing, the many optimization, supplementary and 'workaround' options provided by Antlr, grammar actions and attributes, syntax trees, error reporting and related practical topics.

The third part, Understanding Predicated LL(*) Grammars, is the valuable 'textbook' portion of the book. It gives readers a short and comprehensible introduction to exactly what predicated-LL(*) means as well as a look at how competing parser generators work in contrast.

Both of the second and third parts are scattered with theoretical tidbits to help language designers better understand why grammars must work as they do. Those who can't pick their nose without a rudimentary theoretical overview of the subject can enjoy a few casual browsings through the book before even sitting in front of a computer. It works *almost* that well as a textbook, though it still doesn't approach such classics as Aho, et al's, Compilers: Principles, Techniques, and Tools (if you want to get seriously involved in compiler design). Take it for what it is though, as a chance to learn a tool of possible value without having to dig through old mailing lists and last-minute README's on the one hand, as was much the case a year ago, and on the other hand, devoting pain-staking class and study time to a lot of theory you won't find of practical value.

So I'll recommend this book on the basis that there's nothing else like it available; and don't wait until a project comes along that requires knowledge of compiler design, because there's a heck of a learning curve (I'm still on the very low end and I wrote a compiler in college). If you think compiler or parser design is interesting or may conceivably write a domain-specific language for your workplace, the Definitive Antlr Reference is not only a good place to start, but one of the only places to start short of signing up for a university course.

You can purchase The Definitive ANTLR Reference from amazon.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

FiReaNGeL writes "Astronomers have seen the aftermath of spectacular stellar explosions known as supernovae before, but no one had witnessed a star dying in real time — until now. While looking at another object in the spiral galaxy NGC 2770, using NASA's orbiting Swift telescope, scientists detected an extremely luminous blast of X-rays released by a supernova explosion. They alerted 8 other telescopes to turn their eyes on this first-of-its-kind event. 'We were looking at another, older supernova in the galaxy, when the one now known as SN 2008D went off. We would have missed it if it weren't for Swift's real-time capabilities, wide field of view, and numerous instruments.'" Bad Astronomy has an excellent, well-illustrated story about the discovery as well. I Don't Believe in Imaginary Property contributes a link to the BBC's coverage, and adds a nugget gleaned from Ars Technica: "SN 2007uy's collapse caused an X-ray burst of about 10^39 joules, most likely due to the 'shock break out' when the energy of the core's collapse finally reached the neutron star's surface."

superglaze writes "ZDNet UK has a very entertaining round-up of the most annoying software out there, and everything from RealPlayer and Adobe Reader to Java and Norton Antivirus gets a kicking. 'The internet has brought us many joys. It's rewritten the rules of business and pleasure. And pain. For it allows what may have seemed like bright ideas at the time ('let's use it to make sure our customers have the latest software', for example) to turn into a stinking pit of misery — usually, but by no means always, after marketing gets its fangs in.'"