Physicists from the University of Utrecht and the Faculty of Physics at the University of Warsaw have observed—for the first time experimentally—the Brazil nut effect in a mixture of charged colloidal ...

Shake a can of mixed nuts long enough and the biggest nuts end up on top. Studied since the 1930s but still poorly understood, this phenomenon–called the Brazil nut effect–also occurs in batches of ...

First there was the “Brazil nut effect”, then the “reverse Brazil nut effect” – and now physicists in the UK have cracked the “water-enhanced Brazil nut effect”. For those of you not familiar with ...