submitted by marco 548 days ago (via feeds.digg.com)
Physicists at the Laboratory of Physics and Mechanics of Heterogeneous Media (CNRS / Université Paris Diderot / ESPCI ParisTech / Université Pierre et Marie Curie) have shown, in collaboration with scientists from the US and Algeria, that the size of giant dunes is controlled by the depth of the atmospheric convective boundary layer.img src="http://feeds2.feedburner.com/~r/digg/container/science