Cross section of a diamond anvil cell. Illustration by Tobias1984.
Improved imaging of the Earth’s interior has unlocked new subsurface mysteries, including an area 600 miles (1,000 kilometers) down where the mantle’s usual flow pattern changes.
Now, at a lab bench on the planet’s surface, a team of researchers might have found the reason why.
Eight U.S. Department of Defense brain studies, one at Arizona State University, are investigating ways to help soldiers learn more efficiently.
The Defense Advanced Research Projects Agency (DARPA) hopes not just to make better sharpshooters, but also to shorten training periods for translators, analysts and cryptographers — and, perhaps, to improve outcomes for soldiers with brain injury and memory loss.
Arizona monsoon storm near Carefree Highway. Photo by Shredex.
The most extreme monsoon storms are growing more intense in central and southwestern Arizona, according to a study by the University of Arizona and the National Autonomous University of Mexico.
The findings conform to patterns expected under climate change conditions. Indeed, experts have already observed this effect.
Microburst near Amarillo, Texas. Image from the National Severe Storms Laboratory. Credit: Jason Boggs.
Phoenix, Arizona, is not known for strong winds, but that all changes when monsoons annually deliver destructive downdrafts like the one that damaged its five-story Burton Barr Central Library. In this piece, and in the interview that follows it, I clear up some of the confusion that still whirls around these blasts.
Unlike AM signals, FM is confined to line-of-sight, so Phoenix’s KBAQ radio station doesn’t typically reach much beyond the Valley of the Sun, let alone to a Volkswagen Beetle 875 miles away. So it’s no wonder that Ken Baker of the Radio Kansas Network was surprised to see what resolved on his HD tuner that day.