coondoggie writes "Stanford researchers said this week they had used a supercomputer with 1,572,864 compute cores to predict the noise generated by a supersonic jet engine. 'Computational fluid dynamics simulations test all aspects of a supercomputer. The waves propagating throughout the simulation require a carefully orchestrated balance between computation, memory and communication. Supercomputers like Sequoia divvy up the complex math into smaller parts so they can be computed simultaneously. The more cores you have, the faster and more complex the calculations can be. And yet, despite the additional computing horsepower, the difficulty of the calculations only becomes more challenging with more cores. At the one-million-core level, previously innocuous parts of the computer code can suddenly become bottlenecks.'"

KentuckyFC writes "While preparing for the job of US Secretary of Energy in the incoming Obama administration (and being director of the Lawrence Berkeley National Laboratory and a Nobel Prize winner to boot), Steven Chu has somehow found time to make a major breakthrough in the world of atom interferometry. One measure of an interferometer's sensitivity is the area that its arms enclose. Chu and colleagues have found a way to increase this area by a factor of 2,500 by canceling out the noise introduced by lasers, which work as beam splitters sending atoms down different arms (abstract). One thing this makes possible is the use of different types of atoms in the same interferometer, allowing a new generation of tests of the equivalence principle. (This is the assumption that the m in F=ma and the m's in F= Gm1.m2/r^2 are the same thing). Let's hope he's got equally impressive breakthroughs planned for his encore as US Secretary of Energy."

LawWatcher writes "On October 1, 2008, a federal judge in California upheld a class action claiming that Apple and AT&T Mobility's five-year exclusive voice and data service provider agreement for the iPhone violates the anti-monopoly provisions of the antitrust laws. The court also ruled that Apple may have violated federal and California criminal computer fraud and abuse statutes by releasing version 1.1.1 of its iPhone operating software when Apple knew that doing so would damage or destroy some iPhones that had been 'unlocked' to enable use of a carrier other than AT&T."

How do you know that you live in a dangerous place? One sign might be that your country is holding a Miss Landmine pageant. The contestants come from Angola's various provinces and are between 19 and 33. Each woman has a profile that lists not only their ages and favorite colors but also when they were injured and what kind of mine claimed their limbs. All the contestants get help to go back to school or to start a small business and best of all the winner gets a new prosthetic limb. Nike, who is sponsoring the event, says that the pageant proves people with disabilities can still be beautiful and that they would be happy to sponsor next year as well since it only cost half as much as usual.