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Technology

Accident Could Lead To Better Digital Cameras 120

Posted by ScuttleMonkey from the digital-chamagne dept.
Dave Bullock (eecue) writes "Scientists at UCLA have accidentally created a material that will some day give us better, faster, cheaper, more flexible digital cameras. I toured their lab and shot a photo essay for Wired. Personally I'm looking forward to a quantum-dot embedded camera sensor someday soon. 'Graduate student Hsiang-Yu Chen was working on a new formula for solar cells when something went wrong. Instead of creating electricity when hit with light, the conductivity of the material she was working with changed. "The original purpose [was] to make a solar cell more efficient," says Chen. "However, during the research we found the solar cell phenomenon [had] disappeared." Instead, the test material showed high gain photoconductivity, indicating potential use as a photo sensor.'"
Supercomputing

Half-Petaflop Supercomputer Deployed In Austin 130

Posted by kdawson from the one-teraflop-per-researcher dept.
SethJohnson writes "Thanks to a $59 million National Science Foundation grant, there's likely to be a new king of the High Performance Computing Top 500 list. The contender is Ranger, a 15,744 Quad-Core AMD Opteron behemoth built by Sun and hosted at the University of Texas. Its peak processing power of 504 teraflops will be shared among over 500 researchers working across the even larger TeraGrid system. Although its expected lifespan is just four years, Ranger will provide 500 million processor hours to projects attempting to address societal grand challenges such as global climate change, water resource management, new energy sources, natural disasters, new materials and manufacturing processes, tissue and organ engineering, patient-specific medical therapies, and drug design."
Math

AJAX Version of Mathematica Coming 75

Posted by ScuttleMonkey from the this-is-not-mathematics-this-is-theology dept.
stoolpigeon writes "The O'Reilly School of Technology is teaming up with Wolfram Research to provide on-line math courses using an AJAX version of Mathematica. O'Reilly has posted an and interview with Scott Gray, the director of OST, that has more details on the program (named Hilbert after David Hilbert) itself as well as the classes they will be offering."
Programming

LLVM 2.2 Released 128

Posted by Zonk from the just-a-heads-up dept.
performance geek writes "LLVM 2.2 was released yesterday! This is the thirteenth public release of the open-source compiler that started as a GCC fork. LLVM supports several aggressive optimizations, in compile-, link- and run-time, and often produces faster (1.5-3x) code than GCC. It is also much faster than GCC at compiling (despite the slow link-time optimizations). Gentoo users are already trying to build the whole system with the LLVM toolchain to get the extra performance bit."
Education

Pope Cancels Speech After Scientists Protest 1507

Posted by Zonk from the probably-could-have-used-a-bit-of-forethought-there dept.
Reservoir Hill writes "Pope Benedict XVI canceled a speech at Rome's La Sapienza university in the face of protests led by scientists opposed to a high-profile visit to a secular setting by the head of the Catholic Church. Sixty-seven professors and researchers of the university's physics department joined in the call for the pope to stay away protesting the planned visit recalled a 1990 speech in which the pope, then Cardinal Joseph Ratzinger, seemed to justify the Inquisition's verdict against Galileo in 1633. In the speech, Ratzinger quoted an Austrian philosopher who said the ruling was 'rational and just' and concluded with the remark: 'The faith does not grow from resentment and the rejection of rationality, but from its fundamental affirmation, and from being rooted in a still greater form of reason.' The protest against the visit was spearheaded by physicist Marcello Cini who wrote the rector complaining of an 'incredible violation" of the university's autonomy. Cini said of Benedict's cancellation: 'By canceling, he is playing the victim, which is very intelligent. It will be a pretext for accusing us of refusing dialogue.'"
Music

Convert NSF Files to MP3s 69

Posted by timothy from the no-advice-for-nsfw-files dept.
indecks writes "This tutorial shows an easy way to convert NSF (NES Sound Format) files to mp3s so they can be played in normal media players, or even used as ringtones. Now I have the Super Mario Bros '1Up' sound for my text message notification, and I have Mega Man 3's 'Snakeman' stage music as my ringer. Sah-weet!" (The method demonstrated does require Windows, note.)
Book Reviews

Hacking VIM 308

Posted by samzenpus from the read-all-about-it dept.
Craig Maloney writes "Throughout the years, there have been many clones and re-implementations of the venerable vi editor. One variant of vi that emerged and stayed with us is VIM. Since its introduction, VIM has proven itself a worthy successor to the traditional vi editor. VIM has rightfully taken the place of standard vi implementations as the spiritual successor to vi, completely replacing the vi editor on many, if not all of the current Linux distributions. Many improvements have been made to VIM such as tabs, spell checking, folding, and many, many more. However many of these new enhancements may still remain hidden to anyone who isn't keeping up on the cutting edge of VIM development. Hacking VIM is a good resource for becoming more familiar with the new features of VIM and how to make them work best for you." Read below for the rest of Craig's review.
Programming

Are You Proud of Your Code? 682

Posted by Zonk from the code-poets-speak-up dept.
An anonymous reader writes "I am downright embarrassed by the quality of my code. It is buggy, slow, fragile, and a nightmare to maintain. Do you feel the same way? If so, then what is holding you back from realizing your full potential? More importantly, what if anything are you planning to do about it? I enjoy programming and have from a young age (cut my teeth on BASIC on an Apple IIe). I have worked for companies large and small in a variety of languages and platforms. Sadly the one constant in my career is that I am assigned to projects that drift, seemingly aimlessly, from inception to a point where the client runs out of funding. Have any developers here successfully lobbied their company to stop or cut back on 'cowboy coding' and adopt best practices? Has anyone convinced their superiors that the customer isn't always right and saying no once in awhile is the best course of action?"
Biotech

The Role of Retroviruses in Human Evolution 133

Posted by Zonk from the gotta-love-that-twisty-tree-of-life dept.
mhackarbie writes "The current edition of the New Yorker magazine has up a story about endogenous retroviruses in the genomes of humans and other species. Although researchers have known about such non-functional retroviral 'fossils' in the human genome for some time, the large amount of recent genomic data underscores just how pervasive they are, in a compelling tale that involves humans, their primate cousins, and a variety of viral invaders. Some researchers are even bringing back non-functional viral remnants from the dead by fixing their broken genes."
Math

A New Theory of Everything? 511

Posted by CowboyNeal from the it's-all-made-of-stars dept.
goatherder writes "The Telegraph is running a story about a new Unified Theory of Physics. Garrett Lisi has presented a paper called "An Exceptionally Simple Theory of Everything" which unifies the Standard Model with gravity — without using string theory. The trick was to use E8 geometry which you may remember from an earlier Slashdot article. Lisi's theory predicts 20 new particles which he hopes might turn up in the Large Hadron Collider."
Biotech

Open Source, Genetically Engineered Machines From a Kit? 157

Posted by Zonk from the quite-a-kit dept.
An anonymous reader writes "Students in an MIT competition are helping to build a dev-kit for cells. Together with synthetic biologists, they're building a Registry of Standard Biological Parts called BioBricks. They aim to do for cells what open source software has done for computers. 'The competition is a showcase for the burgeoning field of synthetic biology. Knight and his colleagues Randy Rettberg and Drew Endy, who created the contest in 2004, want to make biological systems easy to build by applying the tools of computer science and engineering: using standard parts and modular design to simplify complex systems. The goal is to create "genetic Legos" that could produce any chemical, from ethanol to pharmaceuticals.'"
Supercomputing

Super-Magnet Sheds Light on Semiconductors 64

Posted by Zonk from the throm-throm-throm dept.
Stony Stevenson writes "A group of researchers at Florida state have demonstrated a magnet design that could shed new light on nanoscience and semiconductor research. 'The Split Florida Helix magnet can direct and scatter laser light at a sample down the centre of the magnet and from four ports on the sides. Due to become fully operational in 2010, the device can generate fields above 25 tesla. The highest-field split magnet in the world currently attains 18 tesla ... The scientists will be able to expand the scope of their experimental approach, learning more about the intrinsic properties of materials by shining light on crystals from angles not previously available in such high magnetic fields.'"
Math

Brains Hard-Wired for Math 246

Posted by samzenpus from the easy-as-1-2-3 dept.
mcgrew writes "New Scientist is reporting that "non-human primates really can understand the meaning of numerals." The small study of two rhesus monkeys reveals that cells in their brains respond selectively to specific number values — regardless of whether the amount is represented by dots on a screen or an Arabic numeral. For example, a given brain cell in the monkey will respond to the number three, but not the number one. The results suggest that individual cells in human brains might also have a fine-tuned preference for specific numerical values." The report itself is online at PLoS Biology, Semantic Associations between Signs and Numerical Categories in the Prefrontal Cortex."
Power

Focus Fusion On Google Tech Talks 141

Posted by kdawson from the sounds-good-on-paper dept.
Henning Burdack writes "Eric Lerner talks on Google Tech Talks about Focus Fusion, which would be a much cheaper and more feasible technology as a fusion energy source than any other current approach, based upon the dense plasma focus device. The technology will use hydrogen-boron fusion with direct induction of ion energy and photovoltaic conversion of x-ray emission, obviating the need of a steam-cycle and thus resulting in higher efficiencies. High temperatures of 1 billion Kelvin (100 keV) have been reached years ago. It only needs $2 million in funding and two years of research for a proof of concept, and maybe four more years for a prototype with positive energy output. In contrast to other fusion efforts it utilizes the natural instabilities of plasma instead of fighting them. Focus Fusion has been discussed on Slashdot before, and a patent application is also available, going a bit more into detail."

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