At the "Cosmology At the Beach" conference earlier this month, Grammy-award winning percussionist Mickey Hart performed a composition inspired by the eruptions of supernovae. "Keith Jackson, a Berkeley Lab computer scientist who is also a musician, lent his talents to the project, starting with gathering data from astrophysicists like those at the Berkeley Lab’s Nearby Supernova Factory, which collects data from telescopes in space and on earth to quickly detect and analyze short-lived supernovas. 'If you think about it, it's all electromagnetic data — but with a very high frequency,' Jackson said of the raw data. "What we did is turn it into sound by slowing down the frequency and "stretching" it into an audio form. Both light and sound are all wave forms — just at different frequencies. Our goal was to turn the electromagnetic data into audio data while still preserving the science.'"

quaith writes "It's not the way they dress, but the appearance of their face. A study published in PLoS One by Nicholas O. Rule and Nalini Ambady of Tufts University used closely cropped greyscale photos of people's faces, standardized for size. Undergrads were asked to categorize each person as either a Democrat or Republican. In the first study, students were able to differentiate Republican from Democrat senate candidates. In the second, students were able to differentiate the political affiliation of other college students. Accuracy in both studies was about 60% — not perfect, but way better than chance."

An anonymous reader passes along this quote from a report at 24/7 Wall St.: "There have been over 3 billion downloads since the inception of the App Store. Assuming the proportion of those that are paid apps falls in the middle of the Bernstein estimate, 17% or 510 million of these were paid applications. Based on our review of current information, paid applications have a piracy rate of around 75%. That supports the figure that for every paid download, there have been 3 pirated downloads. That puts the number of pirate downloads at 1.53 billion. If the average price of a paid application is $3, that is $4.59 billion dollars in losses split between Apple and the application developers. That is, of course, assuming that all of those pirates would have made purchases had the application not been available to them for free. This is almost certainly not the case. A fair estimate of the proportion of people who would have used the App Store if they did not use pirated applications is about 10%. This estimate yields about $459 million in lost revenue for Apple and application developers." A response posted at Mashable takes issue with some of the figures, particularly the 75% piracy rate. While such rates have been seen with game apps, it's unclear whether non-game apps suffer the same fate.

An anonymous reader writes "During several months of 2009, Moscow police looked at fake pictures displayed on their monitors instead of what was supposed to be video from the city surveillance cams. The subcontractor providing the cams was paid on the basis of 'the number of working cams,' so he delivered pre-cooked pictures stored on his servers. The camera company CEO has been arrested."

iamapizza writes "New Scientist reports on the quest of two math boffins for the perfect way to slice a pizza. It's an interesting and in-depth article; 'The problem that bothered them was this. Suppose the harried waiter cuts the pizza off-center, but with all the edge-to-edge cuts crossing at a single point, and with the same angle between adjacent cuts. The off-center cuts mean the slices will not all be the same size, so if two people take turns to take neighboring slices, will they get equal shares by the time they have gone right round the pizza — and if not, who will get more?' This is useful, of course, if you're familiar with the concept of 'sharing' a pizza."