16-05-18 Designing materials that better respond to dynamic loading can help vehicles minimize vibration, better protect military convoys or potentially make buildings safer during an earthquake. Granular materials -- assemblages of particles that range broa...

13-02-18 Ever wonder why sand can both run through an hourglass（沙漏） like a liquid and be solid enough to support buildings? It's because granular（颗粒的） materials -- like sand or dirt -- can change their behavior, or state. Researchers from North Caro...