More than 450 million years ago, the entire genetic instruction book of spiders’ and scorpions’ common ancestor doubled, according to a genomic comparison of the common house spider and the Arizona bark scorpion.
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.
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.