IQpierce writes "My good friend Bradley W. Lewis has set up a site for his hobby: building replica lightsabers at home. These aren't your average cheap pieces of plastic, in fact they're more authentic than the Master Replica sabers: Brad tracks down the pieces of equipment actually used to build the original props — or, when they're unavailable, very close replicas, that he further customizes with a metal lathe in his garage — and puts them together with loving attention. My favorite part is the embellishments he does add, on the inside of the saber — his replica of Luke's saber from ANH can be opened to see authentic-looking internals such as a glowing crystal (as well as another surprise — an autograph from Luke himself, Mark Hamill). Each project is documented step-by-step with hundreds of photos — whether you're a hobbyist, or just a big Star Wars geek like me, you'll find it interesting."

TangoMargarine writes "Sometimes, expensive calculators hit the floor. It's happened to almost anyone with a graphing calculator from TI or HP. Sadly, they don't always bounce. After this happened to [Howard C.], an Industrial Engineering student from U. of Iowa, he decided to spend $50 on milling his own replacement case out of aluminum rather than trashing the device over a broken battery compartment."

An anonymous reader writes "I'm moving to a rural community in the central United States. On the property is a satellite dish in excess of 3 meters in diameter that seems to still be in excellent condition. I already enjoy shortwave radio and was wondering what interesting TV feeds I might be able to catch with the dish. What kind of equipment would I need and how much should I expect to spend? If it's not useful for that purpose, what other fun projects might I use it for?"

An anonymous reader writes "Peter Jansen, a PhD student and member of the RepRap community, has constructed a working prototype of an inexpensive table-top laser cutter built out of old CD/DVD drives as an offshoot of his efforts to design an under $200 open-source Selective Laser Sintering (SLS) 3D printer. Where traditional laser cutters use powerful, fixed-focus beams, this new technique dynamically adjusts the focal point of the laser using a reciprocating motion similar to a reciprocating saw, allowing a far less powerful and inexpensive laser diode to be used. The technique is currently limited to cutting black materials to a depth of only a few millimeters, but should still be useful and enabling for Makers and other crafters. The end-goal is to create a hybrid inexpensive 3D printer that can be easily reconfigured for 2D laser cutting, providing powerful making tools to the desktop."

Plammox writes "A non-profit suborbital space endeavor lead by Kristian von Bengtson and Peter Madsen is trying to put a man in space. The first test of the boosters and space craft in combination with the sea launch platform will take place this week. The catch? All of this is a non-profit project based on voluntary labor and sponsors. How will they get the launch platform out in the middle of the Baltic sea to perform the test? With the founder's home-built submarine pushing it, of course."

Philom writes "Numerous scientific studies have demonstrated that electronic voting machines can be reprogrammed to steal votes, so when researchers Alex Halderman and Ari Feldman got their hands on a machine called the Sequoia AVC Edge, they decided to do something different: they reprogrammed it to run Pac-Man. As states move away from insecure electronic voting, there's a risk that discarded machines will clog our landfills. Fortunately, these results show that voting machines can be recycled to provide countless hours of entertainment."

tekgoblin writes "Christopher Sun of Hong Kong is directing a new porn movie that will actually be in 3-D. The movie is being called 3-D Sex & Zen: Extreme Ecstasy and will be the first 3-D IMAX porn movie. From the article: 'First out of the gates, the soft porn Hong Kong film comes as the stricken industry, hit hard by free Internet porn in recent years, turns to 3-D as a potential money-spinner, following on from the success of Hollywood blockbusters such as James Cameron's Avatar.'"

An anonymous reader writes "The WASP, or Wireless Aerial Surveillance Platform, has been built out of a hobby-grade airframe and open source Ardupilot autopilot, reports sUASnews. In the words of the Rabbit-Hole website, it's a 'Small Scale, Open Source UAV using off the shelf components. Designed to provide a vehicle to project cyber-offensive and defensive capabilities, and visual / electronic surveillance over distance cheaply and with little risk.'" Want a drone of your own? The makers have some pointers to helpful resources.

zycx writes "As Dieter Spaar has pointed out in a mailing list post on the OsmocomBB developer list, he has managed to get a first alpha version of TCH (Traffic Channel) code released, supporting the FR and EFR GSM codecs. What this means, in human readable language: He can actually make voice calls from a mobile phone that runs the Free Software OsmocomBB GSM stack on its baseband processor. This is a major milestone in the history of the project."

schliz writes "Oceanographers have called for telecommunications companies to use their active and retired submarine fibre to collect climate data. Sydney University's John You says voltmeters could simply be attached to cable landing stations to measure ocean currents via the electromagnetic current that they generate. More information about salinity and seismology could be collected by attaching sensors to repeater boxes that are typically installed every 100km of cable to amplify signals. Because fibre optic cables could remain under the sea for decades, they could be a consistent, continual source of data for researchers."

sheetsda writes "For many years now PC cases have included 3 or 4 or even more external 5.25 inch drive bays. These days with the proliferation of USB thumb drives and gigabit Ethernet, even my DVD drive has been gathering dust since OS-install-time. Before that when combination CD-RW and DVD drives were nonexistent or expensive that still leaves and extra drive bay or two. What exceptionally inventive, useful, or clever uses have the community found for this extra space? Bonus geek cred for solutions making use of the power rails inside the case."

An anonymous reader writes "A few students at Carnegie Mellon University outfitted weather balloons with air quality sensors, resulting in huge glowing balloons that respond to surrounding air quality. Their Instructables page shows that pretty much anyone can make these using a PIC, a tri-colored LED, and some off-the-shelf air quality sensors (about $10 each): 'This Instructable will show you how to make giant, super cool, glowing balloons that react to surrounding air quality. Inside each balloon is a tri-colored LED. This LED reacts to data from an air quality sensor, turning green, yellow or red based on low, average, and high values.'"

Barence writes "Last week, PC Pro issued a challenge to see whose PC could render a 3D graphics benchmark in the shortest time. The competition was won by an entrant with a rather unfair advantage: Intel. The processor giant's superchilled rig is overclocked to nearly 5GHz. As PC Pro explains: 'The rig itself uses phase-change cooling: in other words it's attached to a chuffing great freezer, which I believe is the big box on the right of the photo. That yellow meter with the readout is showing the temperature of its output: yes, that's minus 40 degrees Celcius.'"

secretrobotron writes "I'm a recent university graduate from a co-op system which has kept me on the move every other semester, so I've never really had a permanent place to live, and I've never had the opportunity (or the capital) to buy expensive things. Now that I'm working, those restrictions on my life are gone and I'm living in an apartment with things I don't want stolen. I would love to build a DIY home security system, but I don't even know where to start since Google searches reveal things like diysecurityforum.com, which help only to an extent for a curious newcomer. Has anybody out there successfully built a home security system on a budget? If so, where did you start?" Related query: When similar questions have come up before, many readers have recommended Linux-based Zoneminder (last updated more than a year ago); is that still the state of the art?

An anonymous reader writes "If you've owned any of Sony's PlayStation consoles then there's a good chance you've also played one of the Wipeout games. It's a high-speed racing game that helped make the PSOne popular, and it's now been recreated using a remote control car. The project is the idea of Malte Jehmlich. He decided to create a track out of cardboard reminiscent of the Wipeout tracks. He then hooked up a wireless camera to a remote control car, and modified the controller to be an arcade cabinet with a wheel and forward/reverse selector."

ptorrone writes "In this 7-minute video we explore the mysteries of Apple device charging. Usually, device makers need to sign a confidentially agreement with Apple if they want to say their charger 'works with iPhone / iPod,' and they're not allowed to talk about how the insides work. If you don't put these secret resistors on the data lines too, you get the dreaded Charging is not supported with this accessory. We demonstrate how anyone can make their own chargers that work with iPhone 4, 3Gs, etc."

Barence writes "The most common complaint about 3D is that the glasses give you a headache, but that's not actually true, according to the man who teaches the pros how to make better 3D. Speaking at the BBC in London, Buzz Hays, chief instructor for the Sony 3D Technology Center in Culver City, California, explained: 'It's not the technology's fault, it's really the content that can cause these problems. It's easy to make 3D but it's hard to make it good — and by "good" I mean taking care to make sure that this isn't going to cause eyestrain.' He went on to detail some of the mistakes made by inexperienced 3D film makers, from poor composition of shots, through uncomfortable convergence settings, to overuse of on-set monitors without viewing their content on a big screen. But the biggest admission Buzz made was that not even the 'experts' know all the tricks yet, which is why 3D should only get better from here. In the same seminar, Buzz also explained why 3D glasses are here to stay — at least for the next few years."

josath writes "Texas Instruments' flagship calculator, the Nspire, was hacked to allow user-written programs earlier this year. Earlier this month, TI released an update to the OS that runs on the calculator, providing no new features, but only blocking the previous hack. Now, just a few weeks later, Nleash has been released, which defeats this protection. The battle rages on as users fight for the right to run their own software on their own hardware."

crimeandpunishment writes "A scientific expedition to the Titanic will create a detailed three-dimensional map of the world's most famous shipwreck. A 'dream team' of archaeologists, oceanographers, and other scientists will spend 20 days assessing the legendary ship's deteriorating condition, and collecting data and images. They're calling it the most advanced scientific mission to Titanic since its discovery 25 years ago. A leader of the expedition says this is the first time the wreck will be treated as an archaeological site, with two goals: 'One is to preserve the legacy of the ship by enhancing the story of the Titanic itself. The second part is to really understand what the state of the ship is.'"

adunk writes "Linus Åkesson has built an 8-bit synthesizer inside an old electric organ case. 'All the original tone-generating parts have been disconnected, and the keys, pedals, knobs and switches rerouted to a microcontroller which transforms them into MIDI signals. Those are then parsed by a second microcontroller, which acts as a synthesizer.' The Chipophone is perfect for playing classics such as the Super Mario Bros in-game music or Rob Hubbard's Spellbound. A description of the build process, with photos, is available."