News tagged with diffusion

Partitioning by collision

An ensemble consisting of a binary mixture of particles of equal size can partition itself into its component fractions - provided that the two species differ in their diffusion constants.

dateFeb 05, 2016 in General Physics
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Radio shadow reveals tenuous cosmic gas cloud

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered the most tenuous molecular gas ever observed. They detected the absorption of radio waves by gas clouds in front of bright radio sources. ...

dateDec 07, 2015 in Astronomy
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A barrier against brain stem cell aging

Neural stem cells generate new neurons throughout life in the mammalian brain. However, with advancing age the potential for regeneration in the brain dramatically declines. Scientists of the University of Zurich now identified ...

dateSep 17, 2015 in Cell & Microbiology
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