Please create an account to participate in the Slashdot moderation system


Forgot your password?
DEAL: For $25 - Add A Second Phone Number To Your Smartphone for life! Use promo code SLASHDOT25. Also, Slashdot's Facebook page has a chat bot now. Message it for stories and more. Check out the new SourceForge HTML5 Internet speed test! ×

Submission + - Get started with two nerdy hobbies at once. The HamShield for Arduino! ( 3

belial writes: For the past year, Casey Halverson, Morgan Redfield and Nigel Vander Houwen have been working on a not-actually-secret project at Seattle's Metrix Create:Space. The HAMShield for Arduino, a shield that incorporates a SDR and low noise amplifier in the VHF and UHF bands!

In the first 12 hours of it being on Kickstarter, it passed the halfway mark, pretty much guaranteeing its funding. What would you make with one of these if you had one, and how do you think this is going to change the Amateur Radio landscape?

Submission + - TI Against Calculator Hobbyists ... Again (

Deep Thought writes: Texas Instruments, already infamous thanks to the signing key controversy last year, is trying a new trick to lock down its graphing calculators, this time directed toward its newest TI-Nspire line. The TI-Nspires were already the most controlled of TI's various calculator models, and no third-party development of any kind (except for its very limited form of TI-BASIC) was allowed until the release of the independent tool Ndless. Since its release, TI has been determined to prevent the large calculator programming community from using it. Its latest released operating system for the Nspire family (version 2.1) now prevents the calculators from downgrading to OS 1.1, needed to run Ndless. This is the TI's second major attack on Ndless, as the company has already demanded that websites posting the required OS 1.1 be removed from public download, obviously to prevent use of the tool. Once again, TI is preventing calculator hobbyists from running their own software on calculators they bought and paid for. Is TI going the way Apple did?

TI-Nspire Hack Enables User Programming 88

An anonymous reader writes "Texas Instruments' most recent, ARM-based series of graphing calculators, the TI-Nspire line, has long resisted users' efforts to run their own software. (Unlike other TI calculator models, which can be programmed either in BASIC, C, or assembly language, the Nspire only supports an extremely limited form of BASIC.) A bug in the Nspire's OS was recently discovered, however, which can be exploited to execute arbitrary machine code. Now the first version of a tool called Ndless has been released, enabling users, for the first time, to write and run their own C and assembly programs on the device. This opens up exciting new possibilities for these devices, which are extremely powerful compared to TI's other calculator offerings, but (thanks to the built-in software's limitations) have hitherto been largely ignored by the calculator programming community."

Comment Re:Rail industry can handle itself (Score 1) 897

See, but Amtrak won't make a profit until they can run on time, and get to their destination in a reasonable amount of time. This requires high-speed tracks, and separate passenger/rail trackway.

Besides - public transit doesn't exist in order to make a profit. Government isn't about making money. It's about the boring stuff - sewers and roads and social services - that everyone needs but aren't any fun to do.


Submission + - Evaluation of Fortinet Filtering in Bradburn Legal (

David Burt writes: "Bennett Haselton, a long time filtering critic and the proprietor of the PeaceFire website has submitted an evaluation of the filtering product Fortinet in the ongoing library filtering case Bradburn v. North Central Regional Library District. Haselton reports he drew random samples from domain registration lists of 100,000 .com and 100,000 .org sites and ran them against the FortiGuard filter, which the library uses. He finds that 1,366 .com and were blocked, and of these sites 64 or 11.9 % of the .com sites were blocked in error, and 49 or 23.6% of the .org sites were blocked in error. 11.9% and 23.6% may sound like a lot, but out of the whole sample that's 200,000, that's 113/200,000 = .0565 % of all the sites he tested. A caveat I'd put on this report is that it doesn't represent "real world" traffic in a library. This is a random sample, and doesn't take into account frequency, which is huge. The majority of Internet traffic in a public library is probably going to be less than 10,000 sites, and a random sample of all websites doesn't reflect that. So why didn't the ACLU ask for the library's log files and test them? That's what the DOJ did in the CIPA case, where DOJ expert Cory Finnell test filtered logs from libraries running CyberPatrol, Websense, and Bess, finding that:

Other studies of library filtering logs, including my own I conducted in 2000 for Dangerous Access 2000 found similar results. I've added Bennett's study to my table of filtering effectiveness tests A copy of Haseton's report is here. My Bradburn case page is here."


Submission + - Football field-sized kite powers latest freighter ( 2

coondoggie writes: "A kite the size of a football field will provide most of the power for a German heavy freight ship set to launch in December. The Beluga shipping company that owns the 460-foot Beluga said it expects the kites to decrease fuel consumption by up to 50% in optimal cases as well as a cutback of the emission of greenhouse gases on sea by 10 to 20%. Interestingly, the ship will be hauling windmills from Esbjerg, Denmark to Houston, Texas. The company that makes the kite for the German transport, SkySails, has made kites for large yachts but is targeting commercial ships with new, larger kites. And it has the ambitious goal of equipping 1,500 ships with kites by 2015."

Submission + - Send that dang photon back in time for 20K

QuantumCrypto writes: "Or at least try sending it. Dr. John Cramer of University of Washington has been working on a project to demonstrate time travel using the principle of quantum entanglement. However unfortunately his funding has run out, and he will lose his lab space if he doesn't find $20,000 fast. I suggest that slashdotters should setup and PayPal account to collect donations for this experiment. Even if the experiment doesn't succeed we will learn from it."

Submission + - New Replacements For Diesel and Gasoline

An anonymous reader writes: A chemical engineering research team from Purdue University has put forth a process to make liquid fuels similar to diesel and gasoline. The process is claimed to be fully renewable, more energy efficient than current oil refining processes and carbon-free in production and distribution. What do Slashdotters think?

Slashdot Top Deals

"In the face of entropy and nothingness, you kind of have to pretend it's not there if you want to keep writing good code." -- Karl Lehenbauer