Swimming Bacteria Stir Up Fluid
The above picture shows a bacteria-induced fluid convection
pattern in a half-inch-diameter fluid drop, viewed from above
The above picture shows the vector field of bacterial velocities
at the bottom of a drop hanging from the bottom of a petri dish, at
high magnification, with prominent regions of circulation evident.
(Images and captions courtesy Raymond Goldstein and colleagues,
University of Arizona.)
Reported by: Dombrowski et al., Physical
Review Letters, upcoming.
Associated Physics News Update
of Arizona news release on this work
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