PHYSICAL REVIEW FOCUS 25 October 2007 http://focus.aps.org/
- From: Sam Wormley <swormley1@xxxxxxxxx>
- Date: Fri, 26 Oct 2007 04:22:46 GMT
PHYSICAL REVIEW FOCUS 25 October 2007 http://focus.aps.org/
David Ehrenstein, American Physical Society
Introductions to the Focus stories of the past week;
visit http://focus.aps.org for the complete stories.
CONNECTIONS GET YOU EVERYWHERE, BUT SLOWLY
The Internet and other large networks can hang together as
connected wholes even when 10% or more of their communication
links are knocked out, according to some mathematical studies.
But in the 2 November Physical Review Letters, researchers suggest
that some networks may not be so resilient. Networks must provide
more than mere connection; they have to let information or other
resources move from point to point quickly and effectively. The
researchers argue that after a few links fail, the routes between
some points can become so long as to be unusable. The effect could
make networks fail even when simpler analyses would suggest they'd
still be working.
(Eduardo Lopez et al., Phys. Rev. Lett. to be published)
COMPLETE Focus story at http://focus.aps.org/story/v20/st15
Note: The Focus story on the Nobel Prize In Physics
(http://focus.aps.org/story/v20/st13) was revised on 23 October
2007 to improve the explanation of GMR physics.
Also from PRL (stories from AIP's Physics News Update):
NUCLEAR SYRUP
Story at http://www.aip.org/pnu/2007/split/843-2.html
(J. U. Andersen et al., Phys. Rev. Lett. 99, 162502)
GAMMA RAYS FROM THUNDERCLOUDS
Story at http://www.aip.org/pnu/2007/split/841-2.html
(H. Tsuchiya et al., Phys. Rev. Lett. 99, 165002)
THERMAL LOGIC GATES
Story at http://www.aip.org/pnu/2007/split/840-2.html
(Lei Wang and Baowen Li, Phys. Rev. Lett. 99, 177208)
RELATIVISTIC THERMODYNAMICS
Story at http://www.aip.org/pnu/2007/split/843-1.html
(David Cubero et al., Phys. Rev. Lett. 99, 170601)
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Copyright 2007, The American Physical Society.
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