Latest Robert Behringer Stories
Scientists have gained a new understanding of the way the energy of a meteorite or a missile transfers to sand and dirt grains by observing high-speed video of projectiles slamming into a bed of disks.
It's easy to get in a jam.
Using color-changing plastic cylinders as a stand-in for a mass of granular material, Duke University physicists have created a computer-testable method to predict, particle-by-particle, how pushes, nudges and shoves at the edges transmit across large assemblages.
- A small wooded valley; a dell.
- The protecting weather-shed built around the entrance to a house.