Ocean sound waves may reveal location of incoming objects
New acoustic analysis could pinpoint impacts by meteorites or possibly plane debris.
Engineers identify key to albatross’ marathon flight
Flying in shallow arcs helps birds stay aloft with less effort.
Deep waters spiral upward around Antarctica
Research reveals the upwelling pathways and timescales of deep, overturning waters in the Southern Ocean.
Technique spots warning signs of extreme events
Method may help predict hotspots of instability affecting climate, aircraft performance, and ocean circulation.
Our hairy insides
Engineers predict how flowing fluid will bend tiny hairs that line blood vessels and intestines.
New scaling law predicts how wheels drive over sand
Formula could help optimize construction vehicles, military tanks, and rovers on Mars.
Illuminating uncertainty
Youssef Marzouk aims to improve predictions of everything from underground pollution to daily weather.
Watering the world
New design cuts costs, energy needs for drip irrigation, bringing the systems within reach for more farmers.
High-speed images capture archer fish’s rocket-like launch
Insights into the hydrodynamics of the move may improve underwater vehicle design.
Engineers design “tree-on-a-chip”
Microfluidic device generates passive hydraulic power, may be used to make small robots move.
Scientists make microscopes from droplets
With chemistry and light, researchers can tune the focus of tiny beads of liquid.
A light rain can spread soil bacteria far and wide, study finds
Global precipitation may account for 1 to 25 percent of bacteria emitted from land.