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Physics and Astronomy News Archive: July 2005

Image: The Supernova That Just Won't Fade Away
The Supernova That Just Won't Fade Away
Source: ESA   Posted: 7/21/05
Scientists have found that a star that exploded in 1979 is as bright today in X-ray light as it was when it was discovered years ago, a surprise finding because such objects usually fade significantly after only a few months.

Image: Physicists Create a 'Perfect' Way to Study the Big Bang
Physicists Create a 'Perfect' Way to Study the Big Bang
Source: EPSRC   Posted: 7/21/05
Physicists have created the state of matter thought to have filled the Universe just a few microseconds after the big bang and found it to be different from what they were expecting. Instead of a gas, it is more like a liquid.

Image: 3-D Multilayered Optical Structures Made Without A Clean Room
3-D Multilayered Optical Structures Made Without A Clean Room
Source: AmesLab   Posted: 7/21/05
First in novel optical materials: researchers at Ames Lab made 3-D photonic band gap crystals 4mm square and 12 layers high without a “clean room” or multimillion dollar equipment traditionally required.

Image: Astronomers Debate Whether Oldest Known Dust Disk Will Ever Form Planets
Astronomers Debate Whether Oldest Known Dust Disk Will Ever Form Planets
Source: CFA/Harvard   Posted: 7/21/05
Astronomers have discovered the first exception to the dust disk planet formation rule - a 25-million-year-old dust disk that shows no evidence of planet formation.

Image: Wiring the Brain at the Nanoscale
Wiring the Brain at the Nanoscale
Source: NSF   Posted: 7/11/05
Working with platinum nanowires 100 times thinner than a human hair a team of U.S. and Japanese researchers has demonstrated a technique that may allow doctors to monitor individual brain cells.

Image: New device creates electricity and treats wastewater
New device creates electricity and treats wastewater
Source: WUSTL   Posted: 7/11/05
An environmental engineer at Washington University in St. Louis has created a device similar to a hydrogen fuel cell that uses bacteria to treat wastewater and create electricity.

Image: NASA's Deep Impact Tells a Tale of the Comet
NASA's Deep Impact Tells a Tale of the Comet
Source: NASA/JPL   Posted: 7/11/05
Data from Deep Impact's instruments indicate an immense cloud of fine powdery material was released when the probe slammed into the nucleus of comet Tempel 1 at about 10 kilometers per second.






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Science Quote

'Physicists like to think that all you have to do is say, these are the conditions, now what happens next?'

Richard Phillips Feynman
(1918-1988)





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