Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror
×
Media

OMNI Magazine Remembered 131

An anonymous reader noted that Slate is doing a bit of a retrospective on OMNI. If you're anything like me, reading it was a treat. At home I suffered through Popular Mechanics, but OMNI was what I wished I had. There's many interesting things in the article, like the fact that OMNI is the place where William Gibson first coined the term "Cyberspace."
Image

NASA Tests Flying Airbag 118

coondoggie writes "NASA is looking to reduce the deadly impact of helicopter crashes on their pilots and passengers with what the agency calls a high-tech honeycomb airbag known as a deployable energy absorber. So in order to test out its technology NASA dropped a small helicopter from a height of 35 feet to see whether its deployable energy absorber, made up of an expandable honeycomb cushion, could handle the stress. The test crash hit the ground at about 54MPH at a 33 degree angle, what NASA called a relatively severe helicopter crash."
Sci-Fi

50 Years of the Twilight Zone 104

pickens writes "Fifty years ago on October 2, American television viewers first heard the words: 'You're moving into a land of both shadow and substance, of things and ideas. You've just crossed over into... the Twilight Zone.' Like the time-space warps that anchored so many of the show's plots, Rod Serling's veiled commentary remains as soul-baring today as it did a half-century ago, and the show's popularity endures in multiple facets of American pop culture, appearing nearly uninterrupted through television, syndication and DVD releases and under license to air in 30 countries. 'The whole idea of "The Twilight Zone" jumped off the television screen and became a catchphrase, a buzzword for something much beyond the TV show itself,' says Robert Thompson, director of the Center for the Study of Popular Television at Syracuse University. 'When you say Twilight Zone, it's its own genre.' The original show ran just five seasons, 1959 to 1964, with 156 episodes filmed; Serling wrote 92 of them, and other contributors included Richard Matheson and Ray Bradbury. Anniversary observances were held at Ithaca College in New York, where Serling taught from 1967 until his death in 1975, and which keeps Serling's archives; and also at Antioch College in Ohio, where Serling was a student."
NASA

Huge ISS Science Report Released 87

Earthquake Retrofit writes "NASA has released an extensive report (PDF) on science results from over 100 experiments performed at the International Space Station. From the summary: 'One of the most compelling results reported is the confirmation that the ability of common germs to cause disease increases during spaceflight, but that changing the growth environment of the bacteria can control this virulence. The Effect of Spaceflight on Microbial Gene Expression and Virulence experiment identified increased virulence of space-flown Salmonella typhimurium, a leading cause of food poisoning. New research on subsequent station missions will target development of a vaccine for this widespread malady." I can't tell if this is good news, bad, or both. Also from a quick look at the report, I see that soybeans grow bigger in space with no harmful effect."
Technology

New Nano-Laser Created 84

Many sources are reporting that researchers have created the world's smallest laser since the inception of lasers almost a half-century ago. Dubbed "spasers," as an acronym for "surface plasmon amplification by stimulated emission of radiation," their incredibly tiny size could become a critical component for future technologies like "nanophotonic" circuitry. "Such circuits will require a laser-light source, but current lasers can't be made small enough to integrate them into electronic chips. Now researchers have overcome this obstacle, harnessing clouds of electrons called 'surface plasmons,' instead of the photons that make up light, to create the tiny spasers."
Software

Preload Drastically Boosts Linux Performance 144

Nemilar writes "Preload is a Linux daemon that stores commonly-used libraries and binaries in memory to speed up access times, similar to the Windows Vista SuperFetch function. This article examines Preload and gives some insight into how much performance is gained for its total resource cost, and discusses basic installation and configuration to get you started."
The Courts

Judge Rejects RIAA 'Making Available' Theory 353

NewYorkCountryLawyer writes "A federal judge in Connecticut has rejected the RIAA's 'making available' theory, which is the basis of all of the RIAA's peer to peer file sharing cases. In Atlantic v. Brennan, in a 9-page opinion [PDF], Judge Janet Bond Arterton held that the RIAA needs to prove 'actual distribution of copies', and cannot rely — as it was permitted to do in Capitol v. Thomas — upon the mere fact that there are song files on the defendant's computer and that they were 'available'. This is the same issue that has been the subject of extensive briefing in two contested cases in New York, Elektra v. Barker and Warner v. Cassin. Judge Arterton also held that the defendant had other possible defenses, such as the unconstitutionality of the RIAA's damages theory and possible copyright misuse flowing from the record companies' anticompetitive behavior."
Software

Submission + - Software speeds response to car accidents, backups (networkworld.com)

coondoggie writes: "Software developed by Ohio State University engineers promises to help authorities respond to car accidents quicker and ease traffic back-ups at lower cost, particularly in rural areas. The timing of the software release comes as the July 4th holiday is upon us and the National Highway Traffic Safety Administration noted that July 3 and July 4 are among the deadliest days of the year to drive. Annouced today the software helps the existing computerized boxes locate road incidents more efficiently meaning for a large city like Columbus, Ohio, the savings could add up to tens of thousands of dollars a month. For a state like California the savings could be over a million dollars a year, researchers say. Traffic detectors — basically car-sized wire loops buried in the pavement — are already deployed in many highways to monitor traffic at key points on the road network. http://www.networkworld.com/community/?q=node/1711 2"
Software

Submission + - Google Sketchup Helping Get College Kids Drunk (google.com)

An anonymous reader writes: Found a couple Beer Pong table designs while perusing Google's 3D warehouse. The warehouse allows users to upload their Sketchup-created models to share with others and review.
Security

Submission + - Harry Potter, hacking and hoaxes

An anonymous reader writes: A magazine from Spain has published an interview with Luther Blisset, the hacker who succeed in making the world believe their wrong information about the new release of Harry Potter in the media: he assured that he knew the end of the next book of Harry Potter, which has not been published yet. About Society of the Information, open source intelligence methodologies, psyops, etc.
Data Storage

Submission + - Just how delicate are modern hard drives?

RedBear writes: "Recently I've been researching the idea of setting up a computer system like the Mac mini on small to medium-size boats, for use as on-board entertainment centers and/or computer navigation systems. One of my main concerns has been figuring out whether the hard drive will need to be replaced with solid-state media in order to be completely reliable. Having been conditioned by various information sources over the years to treat a spinning hard drive like a baby made of eggshells, I was surprised to find many "car PC" enthusaists commenting in forums that they've had absolutely no problems using desktop hard drives in moving vehicles for years. I've also been surprised to find very little information about or mounting systems for "ruggedizing" hard drives for mobile use, besides some references to sticking a bit of rubber between the drive and the mounting frame, which really seems inadequate. So I'm left wondering, just how delicate is the modern hard drive, really? Are they hardier than I've always been led to believe? Is a modern hard drive ever actually likely to die from just being bumped around a bit, or do they usually die nowadays for other, more mysterious reasons?

Here's the scenario: A small boat (15-35ft) traveling on choppy or rough seas at various speeds can encounter several different kinds of motion, and that motion can shift very suddenly from going in one direction to going in a perpendicular or opposite direction. With the wrong hull design, cruising speeds or wave crest spacings, resonant vibrations can develop that can practically shake your teeth out of your head at times. Go over a big wave the wrong way and you can find yourself doing a belly-flop or nose-dive a dozen or more feet down into the trough behind it, with a nice resounding thump. Again entirely dependent on hull design and angle of incidence, but the harder you hit the water, the harder it hits back. Then there is the lovely continuous rocking (technically, pitching) and rolling that never really stops when you're in unprotected waters, and can vary from -85 to 85 degrees from one moment to the next. I can't imagine any of this motion being good for any kind of hard drive.

Now, a computer like a laptop or the Mac mini has a notebook-size 2.5" hard drive, which by all accounts will be more resistant to G-force shocks than a typical desktop-size 3.5" hard drive. I've read that this is mostly because of their use of "ramp load/unload" technology, where the drive head never touches the platters. Recently some desktop hard drives have started to use this ramp loading technology, so does that mean those desktop drives will be just as shock-resistant as notebook drives, or is the size difference also important? And just how motion resistant are the notebook drives, in a practical outside-the-testing-lab sense?

Some laptops and even drives these days also have motion sensors that will trigger the drive to park the heads during excessive movement, like when a laptop gets pulled off a table onto the floor. I have to guess on this but I'm suspecting these motion sensing systems would get triggered far too often, possibly interrupting the computer during important read or write activities, at best causing a performance hit and at worst crashing the system if it happens too often. So this doesn't seem like the ultimate solution for a drive that may be affected by nearly continuous strong G-forces.

Is anyone here experienced with building systems like this? I'm not talking about a typical car-PC traveling around on mostly paved city streets, I'm talking about a system that will stay functional and reliable while strapped in the back of a racing pickup while it goes through a thousand-mile off-road race through the Mojave desert. Does any company make mounting systems specifically for this kind of use, or is it totally nonsensical to expect any hard drive to survive under such conditions? My Google-fu may not be the best in the world, but I can usually ferret out what I'm looking for, and I've found basically zilch on ruggedized hard drives or mounting systems for either hard drives or computers in high G-force environments.

Keep in mind, one of my main goals is to keep costs as low as possible, so it would be interesting but pointless to discuss commercial solutions that cost a small fortune. The available specialized marine computer systems I saw seem to be designed for large commercial vessels and are horrendously expensive. We aren't talking about military clients here, just regular people who happen to live and/or work on boats. I just want to be able to take a regular computer and make a few ehancements that would allow it to be used on a boat reliably for years under any possible circumstances. Thus one of the main problems with solid-state media, it would cost 3-5 times as much to get 1/10th to 1/5th of the storage capacity, and that's comparing it to notebook hard drives. 160GB notebook HDD = $110, 16GB UDMA CompactFlash card = $300. With desktop hard drives the cost vs. capacity gap widens even further.

This is even more of a problem because one of the main advantages to using a system like the Mac mini would be its ability to run Windows in a virtual machine for access to a lot of Windows-only navigation, mapping/charting and GPS software as well as Windows-only drivers for GPS hardware, while still having access to the great stability and usability experience of Mac OS X, including the multimedia aspects like gigs of music and MP4/DivX rips of movies. The most recent versions of Parallels Desktop and VMware Fusion both have snapshotting and reversion capabilities which would make it incredibly simple for non-technical users to recover from Windows software glitches while out at sea, and keep their software navigation systems working under almost any circumstances. But installing multiple operating systems (and keeping backups) and having access to all those multimedia files means you need plenty of disk space. For most people, obtaining an adequate amount of solid-state storage to really replace a 100+ gigabyte hard drive would be very cost-prohibitive.

If you were tasked with "ruggedizing" a computer system for use under similar circumstances, how would you go about it? How would you make a mounting system to protect a computer from G-forces that may sometimes be the equivalent of, let's say, being dropped on a carpeted floor from about desk height, over and over again? I don't think a couple of rubber feet will be quite enough, and I'm very interested in hearing ideas on simple padding and suspension systems that could isolate a computer from this level of G-shock. A bungie-cord type suspension system would probably just exacerbate the bouncing motion. It would need to be something different, something that would really dampen sudden motion rather than reacting to it. My only idea so far is complicated, probably expensive, and has something to do with counterweights, pulleys, copper tubing and neodymium magnets. Alternatives are welcome, as are any comments pointing out that I'm being ridiculous for thinking computers are so delicate. Am I? Please back up any such statements with references, of course."

Slashdot Top Deals

Anyone can make an omelet with eggs. The trick is to make one with none.

Working...