KentuckyFC writes "Is it really possible for a 350-pound tiger to leap a 12.5-foot barrier from 33 feet away? (Said another way: a 159-kg tiger, a 3.8 m barrier, and 10 m away.) A physicist at Northeastern University has done the math, a straightforward problem in ballistics, and the answer turns out to be yes (abstract on the physics arXiv). But I guess we already knew that following the death of Carlos Souza at the paws of Tatiana, a Siberian Tiger he had allegedly been taunting at San Francisco zoo at the end of last year."

I Don't Believe in Imaginary Property brings us a Washington Post story which discusses how scientists are finding surprises among the pictures sent back from Mercury by the Messenger spacecraft. In particular, images depicting a crater with over 100 troughs radiating out from it are stumping researchers. The crater is referred to as 'The Spider', and it occupies a basin that has turned out to be larger than once thought. NASA also has a discussion of the crater. The Messenger craft began taking the up-close photos earlier this month. From the Post: "Scientists were also surprised by evidence of ancient volcanoes on many parts of the planet's surface and how different it looks compared with the moon, which is about the same size. Unlike the moon, Mercury has huge cliffs, as well as formations snaking hundreds of miles that indicate patterns of fault activity from Mercury's earliest days, more than 4 billion years ago."

iandoh writes "A team of scientists at Stanford University has tracked the movement of carbon nanotubes through the digestive systems of mice. They've determined that the nanotubes do not exhibit any toxicity in the mice, and are safely expelled after delivering their payload. As a result, the study paves the way toward future applications of nanotubes in the treatment of illnesses. Previous research by the same team demonstrated that nanotubes can be used to fight cancer. The nanotubes do this in two ways. One method involves shining laser light on the nanotubes, which generates heat to destroy cancer cells. Another method involves attaching medicine to the nanotubes, which are able to accurately 'find' cancerous cells without impacting healthy cells."

mikesd81 writes "Sunday we discussed apparently great news: a company announced making a deal with the major labels to provide DRM-free, ad-supported music. There's just one problem with that. Reuters reports that the Big 4 music labels have denied having any deal with Qtrax. Contrary to Qtrax's reports, Sony BMG Music Entertainment and Warner had publicly denied that they had agreed to back the new Qtrax service. Universal Music, the largest of the group, said it also had not signed a deal for the new Qtrax service and is still in discussions. EMI Group said that while its song publishing unit has an agreement with Qtrax, its recorded music arm, EMI Music, does not. EMI Music, Sony BMG and Warner all previously had agreements with Qtrax, which was testing a paid music download service. Sources say those agreements expired in the last year and did not cover the new free, ad-supported model now being promoted by Qtrax. Qtrax did not immediately respond to further queries about its agreements with other companies."

Anti-virus firm Trend Micro is suing Barracuda Networks over their use of the open source anti-virus product ClamAV. The issue is Trend Micro's patent on 'anti-virus detection on an SMTP or FTP gateway'. Companies like Symantec and McAfee are already paying licensing fees to Trend Micro. Groklaw carries the word from Barracuda that they intend to fight this case, and are seeking information on prior art to bring to trial. Commentary on the O'Reilly site notes (in strident terms) the strange reality of patents gone bad, while a post to the C|Net site explores the potential ramifications for open source security projects. "Barracuda has been able to leverage open source to bring down the cost of security. Early on Barracuda was blocking spam and viruses at roughly 1/10 the price of the nearest proprietary competitor (that was only selling an antivirus solution). Barracuda has helped to bring down prices across the board, and it has been able to do so because of open source. More open source equals less spam and more security. Trend Micro is effectively trying to raise the price of security." Slashdot and Linux.com are both owned by SourceForge.

nilbog writes "What's the actual cost of sending SMS messages? This article does the math and concludes that, for example, sending an amount of data that would cost $1 from your ISP would cost over $61 million if you were to send it over SMS. Why has the cost of bandwidth, infrastructure, and technology in general plummeted while the price of SMS messages have risen so egregiously? How can carriers continue to justify the high cost of their apparent super-premium data transmission?"