It’s unclear why river dolphins do this, but it might serve some kind of social function.
Category: Space & Astronomy
Firefly’s picture-perfect Moon landing charts the future of commercial lunar exploration
“Every single thing was clockwork… We got some Moon dust on our boots.”…
Firefly’s picture-perfect Moon landing charts a course for lunar exploration
“Every single thing was clockwork… We got some Moon dust on our boots.”…
Falcon 9 Sonic Booms Feel Like Seismic Waves, Shaped by Trajectory, Wind Shear, and Coastal Topography
Trajectories, wind shear, temperature gradients, topography, and weather can affect how a sonic boom spreads.
How Android Phones Became a Real-Time Earthquake Warning System
The system uses phones’ accelerometers to trigger warnings ahead of the shaking.
Ice Discs Self-Propel Across a Patterned Metal Surface, Inspired by Death Valley’s Sailing Stones
VA Tech experiment was inspired by Death Valley’s mysterious “sailing stones” at Racetrack Playa.