News tagged with flow

Understanding dynamic stall at high speeds

When a bird in flight lands, it performs a rapid pitch-up maneuver during the perching process to keep from overshooting the branch or telephone wire. In aerodynamics, that action produces a complex phenomenon known as dynamic ...

date21 hours ago in Engineering
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How bacterial communities transport nutrients

Under threat of being scrubbed away with disinfectant, individual bacteria can improve their odds of survival by joining together to form colonies, called biofilms. What Arnold Mathijssen, postdoctoral fellow in bioengineering ...

dateDec 12, 2018 in General Physics
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InSight Mars lander takes its first selfie

NASA's InSight lander isn't camera-shy. The spacecraft used a camera on its robotic arm to take its first selfie—a mosaic made up of 11 images. This is the same imaging process used by NASA's Curiosity rover mission, in ...

dateDec 12, 2018 in Space Exploration
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Slow flow for glaciers thinning in Asia

Providing water for drinking, irrigation and power, glaciers in the world's highest mountains are a lifeline for more than a billion people. As climate change takes a grip and glaciers lose mass, one might think that, lubricated ...

dateDec 11, 2018 in Earth Sciences
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