MaizeMan writes "Not for the easily distracted: a Belmont software developer's hand-built CPU was featured in Wired recently. Starting with a $50 wire wrap board, Steve Chamberlin built his CPU with 1253 pieces of wire, each wire wrapped by hand at both ends. Chamberlin salvaged parts from '70s and '80s era computers, and the final result is an 8-bit processor with keyboard input, a USB connection, and VGA graphical output. More details are available on the developer's blog."

EdIII writes with this awesome snippet from Hack a Day: "'[phreakmonkey] got his hands on a great piece of old tech. It's a 1964 Livermore Data Systems Model A Acoustic Coupler Modem. He recieved it in 1989 and recently decided to see if it would actually work. It took some digging to find a proper D25 adapter and even then the original serial adapter wasn't working because the oscillator depends on the serial voltage. He dials in and connects at 300baud. Then logs into a remote system and fires up lynx to load Wikipedia. Lucky for [phreakmonkey] they managed to decide on a modulation standard in 1962. It's still amazing to see this machine working 45 years later.' Although impractical for surfing the Internet today, there is something truly cool about getting a 45-year old modem to work with modern technology. The question I have, is what is the oldest working piece of equipment fellow Slashdotters have out there? I'm afraid as far back as I can go is a Number Nine Imagine 128 Series 2 Graphics card on a server still in use at my house which only puts me at about 14 years."

ThinSkin writes "Building a computer that can handle today's games doesn't have to cost an arm and a leg. In fact, you can build one for less than $800, especially given that many hardware manufacturers have cut costs considerably. Loyd Case over at ExtremeTech shows gamers how to build an $800 gaming PC, one that features an overclockable Intel Core 2 Quad Q8400 and a graphics-crunching EVGA 260 GTX Core 216. The computer exceeded expectations in gaming and synthetic tests, and was even overclocked well over spec at 3.01GHz."

stevel writes "The owner of games site GamesByEmail.com created Dice-O-Matic, 'a machine that can belch a continuous river of dice down a spiraling ramp, then elevate, photograph, process and upload almost a million and a half rolls to the server a day. ... The Dice-O-Matic is 7 feet tall, 18 inches wide and 18 inches deep. It has an aluminum frame covered with Plexiglas panels. A 6x4 inch square Plexiglas tube runs vertically up the middle almost the entire height. Inside this tube a bucket elevator carries dice from a hopper at the bottom, past a camera, and tosses them onto a ramp at the top. The ramp spirals down between the tube and the outer walls. The camera and synchronizing disk are near the top, the computer, relay board, elevator motor and power supplies are at the bottom.' While not called out in the article, the pictures clearly show a Dell Mini 9 running the show (and performing the optical recognition of the dice values.) No, it's not running Linux."

Guanine writes in with a follow-up to our discussion a few months back on the SheevaPlug: 1.2-GHz ARM-compliant processor, 512 MB DDR2, 512 MB flash, USB 2.0, gigabit ethernet, in a package the size of a wall wart, for $99. Saul Hansell's Bits Blog in the NY Times talks about a few applications for such a device, whose price point Hansell claims will drop to $40 before too long. "The first plausible use for the plug computer is to attach one of these gizmos to a USB hard drive. Voila, you've got a network server. Cloud Engines, a startup, has in fact built a $99 plug computer called Pogoplug, that will let you share the files on your hard drive, not only in your home but also anywhere on the Internet. ... [Marvell's CEO said] 'Eventually you won't see the plug. We want this device to be in your TV, your stereo system, your DVD player.'"

ryanguill writes "Wired has an article about expanding your five (maybe six) senses to allow you to sense other things such as direction. It also talks about hijacking other senses to compensate for missing senses, such as using electrodes in your mouth to compensate for lack of eyesight. Another example is a subject wearing a belt with 13 vibrating pads. The pad pointing north would vibrate giving you a sense of direction no matter your orientation: '"It was slightly strange at first," Wächter says, "though on the bike, it was great." He started to become more aware of the peregrinations he had to make while trying to reach a destination. "I finally understood just how much roads actually wind," he says. He learned to deal with the stares he got in the library, his belt humming like a distant chain saw. Deep into the experiment, Wächter says, "I suddenly realized that my perception had shifted. I had some kind of internal map of the city in my head. I could always find my way home. Eventually, I felt I couldn't get lost, even in a completely new place."'"

An anonymous reader writes "A Piezoelectric Sound Level Meter was demoed at MIT's Battle of the Bands last month, borrowing its display from the do-it-yourself USB LED marquee that was the subject of a previous Slashdot story. This video tutorial describes in detail both the analog electronics plus the C code that runs the system. If this is your first experience at the intersection of digital and analog systems, don't be scared!"

macson_g writes "Students from Wroclaw University of Technology (Poland) once again turned one of their dormitories into huge display. The project is called P.I.W.O. (B.E.E.R.). This time they converted a 10-story building into 4-color, 12x10 display. The business was used to display animations, and to play interactive games as well. On the project page (in Polish, Google translation here) you can watch an almost hour-long video, featuring music videos, a Tetris session, a dancing Michael Jackson, Duke Nukem and Mario."

jhfry writes "In an interesting development by an unexpected source, Phoenix Technologies is releasing a Linux-based, virtualization-enabled, BIOS-based OS for computers. They implemented a full Linux distro right on the BIOS chips, and by using integrated virtualization technology, it 'allows PCs and laptops to hot-switch between the main operating system, such as Windows, and the HyperSpace environment.' So, essentially, they are 'trying to create a new market using the ideas of a fast-booting, safe platform that people can work in, but remain outside of Windows.'"

destinyland writes "Want to build a robot this summer? 'Robot-loving Japanese are tinkering with screwdrivers and motors instead of heading to the beach,' and this article identifies the stores and sites serving robot hobbyists. Several sites are actually selling leftover industrial robots, but there's a variety of smaller-size robot vendors, from Tokyo's Vstone Robot Center to Carl's Electronics in Oakland (which sells sound-activated 'Hydradzoids' and solar-powered robots that crawl). Hasbro even sells their own functioning R2-D2 droid with real sonar navigation and a 'voice recognition response module.'"

An anonymous reader writes "What do you get when you mount a Nikon D200 with a standard rifle stock? Why a Tactical Camera of course! One that no reporter would be caught with in a war zone or covering any armed action anywhere. What started out as a tongue in cheek project for April Fools wound up being quite the successful demonstration of concept. It features a fully functional trigger; it has controls for operating the shutter and auto focus; and for the patient shots, it has a mounted bipod. Carry sling optional."

New super-sensitive microwave detectors from the National Institute of Standards and Technology may soon tackle the question of what happened immediately following the big bang. "The new experiment will begin approximately a year from now on the Chilean desert and will consist of placing a large array of powerful NIST sensors on a telescope mounted in a converted shipping container. The detectors will look for subtle fingerprints in the CMB [cosmic microwave background] from primordial gravitational waves — ripples in the fabric of space-time from the violent birth of the universe more than 13 billion years ago. Such waves are believed to have left a faint but unique imprint on the direction of the CMB's electric field, called the 'B-mode polarization.' These waves — never before confirmed through measurements — are potentially detectable today, if sensitive enough equipment is used."

DefenseSupportParty writes "I recently traveled via an unnamed airline, and stupidly checked my laptop. Unfortunately, the screen broke in transit and they refuse to take responsibility for it, claiming that it could have been broken before the flight. I'm not really in the mood to replace the screen if I have to pay for it, as I have other laptops that I can use. At the same time, I don't want to waste computing power that could be put to good use. I've thought about the common stuff: file server, SETI@Home, but I'd like to do something a little more creative. Does anyone have good ideas for a relatively powerful laptop without a display?"

An anonymous reader writes "Ever wished your iPhone could do more than just play some cool games? How about using it as a spread spectrum transmitter to fly your R/C Toys around, complete with using a Linksys router as a receiver?"

CWmike writes "Advanced Micro Devices on Thursday introduced the latest member of its Phenom II X4 family of high-performance quad-core CPUs, which the No. 2 chip maker said it had run as fast as 7 GHz in extreme overclocking tests. Out of the box, the new X4 955 Black Edition, which is aimed at gamers and hobbyists, runs at 3.2 GHz, giving it similar performance to Intel's fastest desktop chips at lower cost, AMD says. The company was able to more than double the CPU's speed during its tests using extreme cooling technology that is not safe at home, said Brent Barry, an AMD product manager. The Web site Ripping.org notes that hobbyists with early access to the X4 955 chip have been able to clock it at up to 6.7 GHz. AMD said the chip was safe with fan cooling at up to 3.8 GHz."

blantonl writes "Brazilians all over the country are using modified amateur radio equipment to communicate with each other using US Military communications satellites — effectively creating their own CB radio network on the backs of the US Military. Recent efforts to crack down have resulted in arrests of some of the users, however the behavior still continues today."

eldavojohn writes "The sweet sweet melodies of Queen and the late Freddie Mercury are reproduced by hardware almost as old as the song is. 'There are millions of computers sitting idle at home consuming fantom electricity. Let's see where all that power is going. This is dedicated to all fans of Queen and hey let's not forget about Mike Myers and Dana Carvey of Wayne's World. Please note no effects or sampling was used. What you see is what you hear (does that even make sense?) Atari 800XL was used for the lead piano/organ sound, Texas Instruments TI-99/4a as lead guitar, 8 Inch Floppy Disk as Bass, 3.5 inch Hard drive as the gong, HP ScanJet 3C was used for all vocals. Please note I had to record the HP scanner 4 separate times for each voice. I tried to buy 4 HP scanners but for some reason sellers on E-Bay expect you to pay $80-$100, I got mine for $30.'"

Ilya writes "Companies such as BMW are investing in Thermoelectric Generators to make their cars more efficient by replacing the alternator. Thermoelectric Generators convert wasted heat from the engine into electrical power. This green instructable shows how you can use the same technology right now at home to harvest expelled heat from home appliances to charge your cellphone and other gadgets. Also features a lego racer powered by the roaring flames of a tea candle."

destinyland writes "Rensselaer Polytechnic Institute in New York is developing flexible nanotubes inserted under the skin to create a handheld display — inside your hand. They wirelessly receive data and display reminders and text messages, and the concept has also been broadened to suggest endlessly programmable digital tattoos, while Netherlands-based Royal Philips Electronics is also exploring the concept of the body as 'a platform for electronics and interactive skin technologies'." That middle link is quite old, but is still loaded with interesting links.

An anonymous reader writes "Researchers at the University of Southern Denmark have modified a Wiimote so that it can control an industrial lawn mower. The project is called Casmobot (Computer Assisted Slope Mowing Robot). 'The Casmobot project is about making grass cutting more efficient,' said Kjeld Jensen, a robotics researcher at the University of Southern Denmark who developed the system. It uses a standard Wiimote that communicates via Bluetooth to a computer and robotics module built into the mower. Actions of the mower are matched to tilt actions of the remote. For example, if you tilt the remote down the mower moves forwards; tilt it up, and it moves backwards, and so on. The Wiimote can be used to control the mower manually or in computer-assisted mode, where the mower uses autonomous navgiation based on RTK GPS positioning to cut larger areas."