Granular media friction explained: Da Vinci would be proud

New York | Heidelberg, 12 July 2017 Leonardo Da Vinci had already noticed it. There is a very peculiar dynamics of granular matter, such as dry sand or grains of wheat. When these granular particles are left on a vibrating ...

Leonardo da Vinci—the first systematic study of friction

Friction is immensely important to us – without it, for example, we could not walk or even crawl – yet it is only 50 years since a special word –  'tribology' – was first coined to describe its study.  Professor ...

New model sheds light on 'flocking' behaviour

Understanding how turbulence can alter the shape and course of a flock of birds, a swarm of insects or even an algal bloom could help us to better predict their impact on the environment.

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