Experiments with small falling particles show that their orientations oscillate which may help explain the settling of volcanic ash and the formation of snow.
Great minds, from Buddhists to Beyoncé, have grappled with the deeper meaning of sandcastles. But in practice, how do you make one that is truly great?
How far microplastics travel in the atmosphere depends crucially on particle shape, according to a recent study by scientists at the University of Vienna and th