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 ...

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.

Butterfly proboscis to sip cells

A butterfly's proboscis looks like a straw -- long, slender, and used for sipping -- but it works more like a paper towel, according to Konstantin Kornev of Clemson University. He hopes to borrow the tricks of this piece ...

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? ...

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 ...

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