Small finlets on owl feathers point the way to less aircraft noise

A recent research study conducted by City, University of London's Professor Christoph Bruecker and his team has revealed how micro-structured finlets on owl feathers enable silent flight and may show the way forward in reducing ...

The mechanism of cellular migration mode switching

When faced with difficult terrain, off-road vehicles can switch from two- to four-wheel drive to keep moving forward. Similarly, cell migration can be driven either by protrusion-directed crawling, or by contractile pulling ...

Quantum physics and origami for the ultimate get-well card

Paper-based diagnostic tests are cheap, convenient and biodegradable. However, their use is limited by conventional dyes—which are not bright enough to show trace amounts of analyte, are prone to fading, and can be environmentally ...

Trembling aspen leaves could save future Mars rovers

Researchers at the University of Warwick have been inspired by the unique movement of trembling aspen leaves, to devise an energy harvesting mechanism that could power weather sensors in hostile environments and could even ...

How to separate linear and ring-shaped molecules

What is the difference between linear chains and rings composed of the same material? The molecular building blocks are identical, but from a mathematical point of view, the two structures have distinct topologies, ring and ...

Robotic fish navigate flowscapes

The EU funded European research project FILOSE has developed robots with a new sense - lateral line sensing. All fish have this sensing organ but so far it had no technological counterpart on man-made underwater vehicles.

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