Swimming bacteria work together to go with the flow

Swimming bacteria can reduce the viscosity of ordinary liquids like water and make them flow more easily, sometimes down to the point where the viscosity becomes zero: the flow is then frictionless.

Unusual thermal convection in a well-mixed fluid

Researchers from Tokyo Metropolitan University, have recently discovered unusual thermal convection in a uniform mixture of high- and low-viscosity liquids. Kobayashi and Kurita found that concentration fluctuations are enhanced ...

Bacteria used to create superfluids

(Phys.org)—A team of researchers with Université Paris-Sud and Université P.M. Curie/Université Paris-Diderot, both in France, has discovered that putting certain types of bacteria into an ordinary fluid, can cause it ...

Improved wind tunnel testing of aircraft models

When testing numerical predictions regarding performance of aircraft, wind tunnels are still the next best thing to actual flight. EU-funded researchers improved the accuracy of test measurements with important implications ...

Long-standing question about swimming in elastic liquids, answered

A biomechanical experiment conducted at the University of Pennsylvania School of Engineering and Applied Science has answered a long-standing theoretical question: Will microorganisms swim faster or slower in elastic fluids? ...

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