Scientific American has a piece on speculation that dark matter may be behind diffuse radiation in the galactic center. Beginning in 2003, researchers led by Douglas Finkbeiner noticed a curious excess of microwave radiation in the WMAP data, after all known sources of such radiation were accounted for. Data from NASA's Fermi Gamma-Ray Space Telescope resulted in a similar anomaly in gamma rays. "A paper posted to the physics preprint Web site arXiv.org on October 26 and submitted to the Astrophysical Journal points to a possible signature of dark matter in the Milky Way, although the study's authors are careful to keep their observations empirical and table such speculation... In the new paper [the researchers] describe the Fermi gamma-ray haze and make the claim that it confirms the synchrotron origin of the WMAP microwave haze. And as with the microwave haze, the authors argue that the electrons responsible for the gamma-ray haze appear to originate from an unknown astrophysical process. ... 'We are absolutely in the process of exploring the Fermi haze in the context of dark matter physics,' [one of them] says."

According to scientists, city Great Tits prefer other city Great Tits over country Great Tits. (Lets act like adults). The researchers found that the city dwellers responded more strongly to songs of fellow city dwellers and the same held true for the bumpkins. The average minimum pitch of male Great Tit songs in noisy urban areas was higher than in quieter, rural areas just a few miles away. Dr Rupert Marshall, of Aberystwyth University, Wales, and his team recorded bird song in 20 different cities in Britain. He says, "People speak louder and higher in noisy places like pubs and bars but still recognise their friends' voices once they go outside. Great tits seem to learn the high notes from their neighbours but don't respond as strongly to lower rural tones even when it's quiet."

thefickler writes "A new study by the US National Institute of Environmental Health Sciences (NIEHS) has found a strong link between air quality and life expectancy. The researchers looked at air pollution, deaths and census data for 51 metropolitan areas between 1978 and 2001, and what they found was a direct correlation between improving air quality and extending life expectancy. People lived about 2.72 years longer over that time span and at least 15 percent of that increased life expectancy was from a decrease in air pollution."

Al writes "Researchers at Georgia Tech have come up with the ideal way to test a new peizo-electric device that efficiently harvests power from bio-movement — attaching it to a hamster. The device contains a series of zinc-oxide nanowires mounted on top of a flexible plastic surface. As the plastic bends, the wires generate around a nanowatt of power. The Georgia Tech team, led by Zhong Lin Wang, wanted to show that their device could produce power from irregular movements so they attached it to a tiny hamster jacket. They also tried attaching it to a volunteer's finger. Here's a video of the hamster wearing his piezo-power outfit."

Kotaku points out a recent patent filed by Nintendo which automates gameplay unless the user specifically chooses to play a particular part of the game. Quoting: "The new system, described in a patent filed by Nintendo Creative Director Shigeru Miyamoto on June 30, 2008, but made public today, looks to solve the issue of casual gamers losing interest in a game before they complete it, while still maintaining the interest of hardcore gamers. The solution would turn a game into a full-length cut scene of sorts, allowing players to jump into and out of the action whenever they wanted. But when played this way, gamers would not be able to save their progress, maintaining the challenge of completing a game without skipping or cheating."

An anonymous reader writes "Like many consumers nowadays, I find more of my time spent on the internet and various wireless devices (e.g. mobile phone). This has gotten to the point where I basically do not use a landline or cable television anymore, and they are essentially pork on my broadband bill, which further subjects the consumer to all sorts of clandestine fees that aren't disclosed until the first bill arrives and add a non-trivial sum (in my case, nearly 100%) to the monthly rate. However, it seems that all broadband access providers have this stipulation, that an internet customer must first have a basic phone or cable TV service in order to sign on for the internet service. Are there any ISPs that can get around this and still deliver broadband internet service at a competitive rate?"

Hugh Pickens writes "An engineer at Jet Propulsion Labs says it should be possible to identify people from the way they walk — a technique called gait analysis, whose power lies in the fact that a person's walking style is very hard to disguise. Adrian Stoica has written software that recognizes human movement in aerial and satellite video footage by isolating moving shadows and using data on the time of day and the camera angle to correct shadows that are elongated or foreshortened. In tests on footage shot from the sixth floor of a building, Stoica says his software was indeed able to extract useful gait data. Extending the idea to satellites could prove trickier, though. Space imaging expert Bhupendra Jasani at King's College London says geostationary satellites simply don't have the resolution to provide useful detail. 'I find it hard to believe they could apply this technique from space,' says Jasani." Comments on the article speculate on the maximum resolution possible from KH-11 and KH-12 spy satellites.

mcgrew writes "The AP is reporting that Leonard Nimoy will 'don his famous pointy ears again' in the next Star Trek movie, due out Christmas of next year. From the article: 'He greeted the crowd with a Vulcan salute. Nimoy was joined by the newly named young Spock, "Heroes" star Zachary Quinto [Sylar], who bears an uncanny resemblance to Nimoy. Both Spocks were introduced by the film's director and co-producer, J.J. Abrams.'"

reporter writes to point us to a story in the Washington Post reporting that the Iraq Study Group has reached consensus and will issue its 100-page report on December 6: 'The Iraq Study Group, which wrapped up eight months of deliberations yesterday, has reached a consensus and will call for a major withdrawal of U.S. forces from Iraq, shifting the U.S. role from combat to support and advising, according to a source familiar with the deliberations.' The Post mentions that first word of the panel's conclusions came from the New York Times yesterday. The Times points out that it is not clear how many U.S. troops would come home; some brigades might be withdrawn to Iraqi bases out of the line of fire from which they could provide protection for remaining U.S. operations.