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Quantum Physics For Everybody 145


Comment Re:Wash your hands! (Score 1) 374


Comment Oh, cruel irony (Score 2, Interesting) 374





The Milky Way's Black Hole Is Not So Quiescent 152

esocid writes in with a followup to the recent discussion about the possibility that our galaxy's central black hole could reignite. "Using NASA, Japanese, and European X-ray satellites, a team of Japanese astronomers has discovered that Sagittarius A* let loose a powerful flare three centuries before the time at which we are observing it (i.e., 26,000 years in the past). X-ray pulses emanating from just outside the black hole take 300 years to traverse the distance between the central black hole and a large cloud known as Sagittarius B2, so the cloud responds to events that occurred 300 years earlier. 'By observing how this cloud lit up and faded over 10 years, we could trace back the black hole's activity 300 years ago,' says team member Katsuji Koyama of Kyoto University. 'The black hole was a million times brighter three centuries ago.'"
The Internet

Higher-Resolution YouTube Videos Currently In Testing 214

jason writes "YouTube has never really been known for streaming videos at a high resolution, but it appears that they are taking early steps at providing higher quality videos. The project was announced last year by the site's co-founder Steve Chen, and now appears to be in the earliest stages of deployment. By adding a parameter onto the end of a video's URL you're able to watch it in a higher quality (in terms of audio and video) that is actually quite noticeable. Not all videos have been converted at this point, but they do have millions upon millions of videos that they need to do."

More Spacecraft Velocity Anomalies 339

ZonkerWilliam recommends a bulletin from the American Institute of Physics, which discusses a study noting that recent spacecraft, such as NEAR, appear to display velocity anomalies much like those seen in Pioneer 10 (which were observed beginning ten years ago). The anomalies amount to up to 13 mm/sec., with a measurement accuracy of 0.1 mm/sec. Quoting: "A new look at the trajectories for various spacecraft as they fly past the Earth finds in each case a tiny amount of surplus velocity. For craft that pursue a path mostly symmetrical with respect to the equator, the effect is minimal. For craft that pursue a more unsymmetrical path, the effect is larger."

Antidepressants Work No Better Than a Placebo 674


NASA Awards Space Cargo Grant 43

pha7boy writes "NASA has made a recent award of 171 million dollars to Orbital Sciences Corp. of Virginia in order to aid the company in developing a feasible space cargo delivery service. 'The US space agency intends to hold an open competition in the years ahead for actual space station cargo-delivery contracts, but Orbital of Dulles, VA, is one of two companies receiving financial help from NASA to develop their proposed systems. The other is Space Exploration Technologies of El Segundo, CA.'"

UK ISPs To Face Piracy Deadline 287

superbrose notes that despite lots of legal difficulties regarding Internet privacy, the UK government is going ahead with plans to punish ISPs for allowing their customers to download illegal music and films. The claim is that there is "rampant piracy" in Britain with more than 6 million broadband users downloading files illegally every year. "The government will on Friday tell internet service providers they will be hit with legal sanctions from April next year unless they take concrete steps to curb illegal downloads of music and films. Britain would be one of the first countries in the world to impose such sanctions. Service providers say what the government wants them to do would be like asking the Royal Mail to monitor the contents of every envelope posted."

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