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Monday, July 20, 2009

Nature May 22 2008 (Vol.451 Issue.7194)


Cover:
Translucent materials such as milk, clouds and biological tissues owe their appearance to the way they interact with light, randomly scattering an incident ray many times before it re-emerges. This process — analogous to the brownian motion of particles in a fluid — is called a random walk, a concept central to statistical physics.

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