Slashdot Mirror
Domain: ntlworld.com
Stories and comments across the archive that link to ntlworld.com.
Stories · 16
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A Solution for the Ten Letter Acrostic Puzzle?
rmo101 asks: "A story in the Times reports a solution to the ten letter acrostic square puzzle that has defied solution since the ancient Greeks. An acrostic puzzle comprises a square of letters where the arrangement of letters from words written in rows result in the same words appearing vertically in the same order. The ten letter solution, however, is not accepted by all as one of the words does not appear in a dictionary. Sounds like a puzzle in search of a fiendish algorithm for interrogating a dictionary. The ancient Greeks believed that the solver of the ten letter puzzle would become immortal. Anyone fancy their chances?" Of course, the Times article doesn't report the proposed ten-letter solution (they show a five-letter one), but they do mention the controversial word: "nonesevent". Are any of you interested in trying your hand at a better solution? -
Women's Institute Consulted on Nuclear Waste
Leon Stringer writes "The Guardian is reporting that the Womens' Institute is being asked for their views on the disposal of nuclear waste while senior scientists resign in protest of being ignored. What members of the public would you like to design nuclear waste storage facilities?" -
The New C Standard
derek_farn writes "At a very late stage Addison Wesley decided not to publish my book, 'The New C Standard: An economic and cultural commentary'. Now that the copyright issues have been sorted out I am making the pdf freely available. You can download the pdf (mirror 1). The organization is rather unusual in that the commentary covers each sentence of the C Standard (actually the latest draft of C0X, excluding library) one by one (all 2022 of them). One major new angle is using the results from studies in cognitive psychology to try and figure out how developers comprehend code. The aim being to try and produce some coding guidelines that reduce costs (ie, reduce the time needed and bugs created). The book also contains the results of lots of measurements (over 400 figures and tables) in an attempt to back the arguments being made -- another unusual feature since most software related books don't publish any figures to back up what they say. Other subsections discuss common implementations and differences between the latest draft standard and C90/C++. More background on the project is available from the Inquirer. -
Sunscreen Not So Good for You?
j-beda writes "Don't like sunscreen? Maybe that tan is good for you. It looks like people are rethinking the common wisdom of avoiding sun exposure... "research suggests that vitamin D might help prevent 30 deaths for each one caused by skin cancer". Maybe if Kurt Vonnegut ever does address MIT grads, he will say something else..." -
Infrared Webcam HOWTO
Geoff Johnson writes "Some of the Slashdot readers may be interested in this page I put together. It describes how to make an ordinary webcam see in the near infrared waveband." -
Stereoscopic images of Titan's surface constructed
CozmsBrpng writes "If you can successfully view stereoscopic images then you can behold the surface of Titan in all its grainy 3D glory. And, in case you missed it, you can also listen to a human ear-friendly version of the descent radar and the winds in Titan's atmosphere courtesy of the DISR team at The University of Arizona." -
Vinyl Records Yield '80s Videogame Nostalgia
Thanks to Kempa.com for its weblog entry discussing music vinyl/cassettes released in the late 70's and early 80's that contained computer programs as part of the audio. The article explains: "Most of these programs were written for the Sinclair Spectrum home computer series... In the case of these programs on vinyl, the user would have to play back the proper portion of the record, record the resultant chatter to tape, and load the tape into the Spectrum." It goes on to showcase UK vinyl-based games from "rockabilly revivalist" Shakin' Stevens ("The goal of 'The Shaky Game' is to drive Shakin' Stevens' car to the center of a maze while avoiding bats, who bite you"), as well as a flexidisc adventure game starring '80s pop stars The Thompson Twins ("...a bizarre text-based adventure in which you guide the [band] around a land of beaches and caves.") -
Sweet Revenge On Nigerian Scammers
davesag writes "I just came across this fine site, 419Eater, wherin people counter scam the Nigerian 419 scammers that have been plaguing our spam filters for the past few years. The UK paper The Guardian is also running a fine article on this site. The site author, and several other contributors, have taken to responding to the scammers, using obviously fake names and so forth, and then string the scammer along for as long as possible. In many cases they get the scammer to pose for a photograph! Amazingly the scammers are just as gullible and greedy as their typical victims, and fall for the most obvious ruses hook, line, and sinker. 419eater welcomes contributors, so if you ever wanted to get your sweet revenge on these low-lives, here's a channel for you. The 419 refers to the section of the Nigerian criminal code under which such scams fall." We've linked to a few such fraud-baiters before, though few with as amusing a photograph. -
eBay Exec. Boasts About Lack Of Users' Privacy
Vertically Integrated writes "The Register has an article about Joseph Sullivan, an eBay executive who has been bragging to 'an audience of law enforcement officials' about the auction site's disregard for the privacy of its users. How true this is is not known, but Sullivan is quoted in the article as saying: "When someone uses our site and clicks on the `I Agree' button, it is as if he agrees to let us submit all of his data to the legal authorities."" -
Network Aware Screensavers?
borgquite asks: "Does anyone know of any network aware screensavers? I am running a school network and would love to be able to have a screensaver where the other computers communicate with each other in some way - for example, if you could have a marquee where the message gets passed from screen to screen. The best I can find is n 0 time, but is there anything else a bit more exciting?" -
Underwater Power Generation?
An anonymous reader writes: "We keep seeing stories here about tidal power, and that's cool, but I don't see how it can be done without a column rising all the way to the surface. So here are the ideas I've got right now." Read on for some interesting thoughts on the subject..."Keep in mind that the device will probably be housed in a length of 4-inch PVC or ABS pipe, and it needs about 0.5 ma at 1.5 volts:
- Surge power. Put a couple of funnels back-to-back with a CPU cooling fan-sized turbine and generator in the middle, and run the output through a rectifier and capacitor. But how reliable will those moving parts be after years underwater?
- Self-winding watch concept. Float the thing tethered to the bottom and install some sort of pendulum inside with a magnet on it, moving through a coil. The moving parts are protected, but will it be enough power?
- Yank the chain. Again, tether it, but use the varying tension on the tether to drive a dynamo of some sort. Not sure how this would work.
- Magnetohydrodynamic generator. Like the surge power thing, but using the flow of cunductive seawater through a magnetic field to generate a current. I have no idea how much power this would generate, if any, or how to deal with ion accumulation at the electrodes.
- Nukes. Anyone got a spare radioisotope thermoelectric generator? Any idea how many smoke detectors I'd need to cannibalize to get enough Americium-241?
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Simple-to-setup Expert System?
Mark Hood writes: "I've been asked to provide a simple trouble-shooting guide for new engineers to follow when presented with an unfamiliar fault or bug report. Mainly this can be done with static web pages and a series of 'yes/no' questions... (Is it plugged in? Is it switched on? etc) but a nice facility would be to allow engineers to update it with what they did to fix faults / gather information. The question is: does anything simple like this already exist? Web searches turn up loads of 'Expert System Shells' or 'Programming Systems', but I was hoping for something that wouldn't require months of dedicated time (this is not my job, I'm just helping out :). Anyone done this at their workplace? Any hints? Or should I knuckle down and write a few CGI scripts for adding data to a web page?" -
PSION Resurrected By Linux
razzer writes: "The PsiLinux.org team have worked magic with getting Linux to squeeze into its new home of portable computers. Thanks to the falling prices in hardware the PSION 5mx is the most powerful, cheapest and smallest way to carry your best friend Tux in your pocket. Something no geek should leave home without. But now its gone one step further, check out http://thomas.de-ruiter.cx/projects/psion which is Tader's site. You really need to see these PicoGUI ( http://www.picogui.org/ ) screenshots. The best one has got to be this one which shows the oustandingly attractive aqua theme." -
Printer Quotas in Linux?
borgquite asks: "At the school that I work for students waste a lot of paper and toner because they print without thinking. I've been looking at printer quota / charging software, but unfortunately I can't seem to find any for Linux, and the Windows based software is all priced far too high. What I need to do is to say that students can print a certain amount per day/week/month/year, and provide a system where they can pay to increase their quota. I've looked for Linux / BSD based solutions, but all I could find is lots of references to a tool called lpquota, but no information on how I can obtain and implement this on my network. Does anyone know of such a system?" -
The History of Doom On All Systems
Consolevision writes: "This news from dcvision.com -- One of our great members (Steveffs) has written a great guide to the history of Doom, right from the beginning to the very newest ports of it, it is an exceptional read for those who have followed gaming for a long time. The History of Doom will take a short while to load as it is a rather large document but you will enjoy :)" This link is unfortunately to a .doc file, but Mr. Vision continues: "I have now split the History of Doom into 5 pages and converted to html for those who are having trouble with the rather large but very impressive doc file." Here are the pieces: Page1, Page2, Page3, Page4 and Page5 -
Automated MP3 Ripping?
jimiUK asks: "I've been working for a while on my streaming mp3 server, using Apache:MP3 running on FreeBSD to start with but now running on RedHat Linux. It all runs smoothky, but what I'm trying to do is automate the ripping process so I can just insert cd's and have them ripped and classified automatically. This box is a dedicated server without a keyboard or moniter connected so I'd rather have no user input whatsoever. I've solved all of the initial problems, and now have the box set to login automatically on boot up, but I still can't find the right script. The most useful has been autorip, and I've also tried ripit (although it requires user intervention). My main problem is that if autorip cant find the cd information, it just stalls. My Perl skills are non-existent really so i'm not sure how to alter the script to instruct it to rip away if it doesnt find track info, which I could add in later. Does anyone have any other suggestions for alternative script front ends, or can point me in the right direction on altering autorip to get it over this hurdle." For those of you running MP3 servers, this idea might be a huge timesaver. Has anyone implemented such a system?
