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Hardware Hacking

Arduino-Based, High Powered LED Lighting Over Wi-Fi 114

Gibbs-Duhem writes "This awesome video was produced by some MIT engineers recently. They've started a fully open-source, open-hardware high power LED lighting project that they designed to be modular enough to control with the Arduino (or any other control system). Using their open-source firmware, you can set up the Arduino to connect to Wi-Fi and receive Open Sound Control packets. Then, they went further and released open-source software for PureData and Python to do music analysis and make the lights flash brilliantly in time with the music! A full Instructable was also posted in addition to the existing documentation for design and assembly on their website."
Encryption

Privacy With a 4096 Bit RSA Key — Offline, On Paper 232

HavanaF writes "Online backup is practical, but can it offer any privacy? The Dutch security company Safeberg developed an Offline Private Key Protocol, with an asymmetric key scheme. The protocol demands that the private (decryption) key be stored away from the 'source' computer, which presumably is 'too vulnerable.' The catch is that the private key needs to be fairly large to be secure: a 4,096-bit RSA key should suffice for some years. But how to store an 800-character key offline? Safeberg introduces a machine readable paper key, with the 4k-bit key crammed in a giant 2D Datamatrix barcode. This video on key strength tells the story."
Linux

Why Top Linux Distros Are For Different Users 496

Lucas123 writes "Fedora, openSUSE and Ubuntu Linux desktops may look alike, but they've got some important distinctions, like the fact that Fedora and Ubuntu use GNOME 2.28 (the latest version) for their default desktop, while openSUSE uses KDE 4.3.1. And, Fedora's designers have assumed that its users are wiser than the general run of users. 'For example, in earlier versions, ordinary (non-admin) users could install software on Fedora without access to the root password. As of this version, however, local users will need to enter the root password before they can install software (as they do on almost all other Linux distributions).'"
Image

Scientists Say a Dirty Child Is a Healthy Child 331

Researchers from the School of Medicine at the University of California have shown that the more germs a child is exposed to, the better their immune system in later life. Their study found that keeping a child's skin too clean impaired the skin's ability to heal itself. From the article: "'These germs are actually good for us,' said Professor Richard Gallo, who led the research. Common bacterial species, known as staphylococci, which can cause inflammation when under the skin, are 'good bacteria' when on the surface, where they can reduce inflammation."
Communications

After 35 Years, Another Message Sent From Arecibo 249

0xdeadbeef writes "Two weeks ago, MIT artist-in-residence Joe Davis used the Arecibo radio telescope to send a message to three stars in honor of the 35th anniversary of the famous Drake-Sagan transmission to M13 in 1974. It was apparently allowed but not endorsed by the director of the facility, and used a jury-rigged signal source on what will now be known as the 'coolest iPhone in the world.' The message encoded a DNA sequence, but no word yet on whether it disabled any alien shields. You can get the low-down on Centauri Dreams: Part 1, Part 2."
Medicine

Why Doesn't Exercise Lead To Weight Loss? 978

antdude writes "The New York Times' Well blog reports that 'for some time, researchers have been finding that people who exercise don't necessarily lose weight.' A study published online in September 2009 in The British Journal of Sports Medicine was the latest to report apparently disappointing slimming results. In the study, 58 obese people completed 12 weeks of supervised aerobic training without changing their diets. The group lost an average of a little more than seven pounds, and many lost barely half that. How can that be?"
It's funny.  Laugh.

Clean Smells Promote Ethical Behavior 250

A recent study is suggesting that moral behavior may be encouraged with nothing more than clean smells. The Brigham Young University professor found a "dramatic improvement in ethical behavior with just a few spritzes of citrus-scented Windex." "The researchers see implications for workplaces, retail stores and other organizations that have relied on traditional surveillance and security measures to enforce rules. Perhaps the findings could be applied at home, too, Liljenquist said with a smile. 'Could be that getting our kids to clean up their rooms might help them clean up their acts, too.' The study titled "The Smell of Virtue" was unusually simple and conclusive. Participants engaged in several tasks, the only difference being that some worked in unscented rooms, while others worked in rooms freshly spritzed with Windex."
Transportation

Federal Summit Eyes Crackdown On Texting While Driving 408

suraj.sun sends along this quote from an Associated Press report: "Opening a government meeting on auto safety, the Obama administration reported Wednesday that nearly 6,000 people were killed and a half-million injured last year in vehicle crashes connected to driver distraction, a striking indication of the dangers of using mobile devices behind the wheel. The Transportation Department was bringing together experts over two days for what it's calling a 'distracted driving summit' to take a hard look at the highway hazards caused by drivers talking on cell phones or texting from behind the wheel. ... Driver distraction was involved in 16 percent of all fatal crashes in 2008. Eighteen states and the District of Columbia have passed laws making texting while driving illegal and seven states and the district have banned driving while talking on a handheld cell phone, according to the Insurance Institute for Highway Safety. Many safety groups have urged a nationwide ban on texting and on using handheld mobile devices while behind the wheel."
Security

Ants Vs. Worms — Computer Security Mimics Nature 104

An anonymous reader writes with this excerpt from Help Net Security: "In the never-ending battle to protect computer networks from intruders, security experts are deploying a new defense modeled after one of nature's hardiest creatures — the ant. Unlike traditional security devices, which are static, these 'digital ants' wander through computer networks looking for threats ... When a digital ant detects a threat, it doesn't take long for an army of ants to converge at that location, drawing the attention of human operators who step in to investigate. 'Our idea is to deploy 3,000 different types of digital ants, each looking for evidence of a threat,' [says Wake Forest Professor of Computer Science Errin Fulp.] 'As they move about the network, they leave digital trails modeled after the scent trails ants in nature use to guide other ants. Each time a digital ant identifies some evidence, it is programmed to leave behind a stronger scent. Stronger scent trails attract more ants, producing the swarm that marks a potential computer infection.'"
Privacy

Facebook Faces the Canadian Privacy Commissioner 140

dakohli writes "Canwest's Sarah Schmidt writes that Facebook has until Monday to find a way to fix its 'serious privacy gaps.' And if the Canadian Privacy Commissioner isn't happy with the Web Company's response, then she has two weeks to push it to the Canadian Federal Court in Ottawa. 'A spokeswoman for the commission said it's premature to say whether the feud will end up in court. This would be an international first for Facebook, which has grown to more than 200 million users since its launch in 2004.'"
The Internet

CRIA, MPAA Demand Expanded DMCA For Canada 224

An anonymous reader writes "The Canadian Recording Industry Association and the MPAA's Canadian subsidiary are demanding that Canada adopt copyright laws that go beyond even the DMCA. The groups demand anti-circumvention law, three strikes and you're out legislation, and increased secondary liability for websites. The demands come as part of the national copyright consultation in which hundreds of Canadians have spoken out against such reforms."

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