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With just a few weeks of training, you can learn to “see” objects in the dark using echolocation the same way dolphins and bats do. Ordinary people with no special skills can use tongue clicks to visualize objects by listening to the way sound echoes off their surroundings, according to acoustic experts at the University of Alcalá de Henares in Spain. “Two hours per day for a couple of weeks are enough to distinguish whether you have an object in front of you,” Juan Antonio Martinez said in a press release. “Within another couple weeks you can tell the difference between trees and pavement.” (via Make Like a Dolphin: Learn Echolocation | Wired Science | Wired.com)

There has never been a peace treaty formally ending the Korean War. This means the U.S., a combatant in the conflict, as leader of the U.N. Command, is free to use force against Pyongyang. On legal grounds, the U.S. Navy therefore has every right to seize the Kang Nam, treat the crew as prisoners of war and confiscate its cargo, even if the ship is carrying nothing more dangerous than melons. (via Korean War II - WSJ.com

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When the Sony Walkman was launched, 30 years ago this week, it started a revolution in portable music. But how does it compare with its digital successors? The Magazine invited 13-year-old Scott Campbell to swap his iPod for a Walkman for a week. (via BBC NEWS | UK | Magazine | Giving up my iPod for a Walkman

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In the weekend’s bizarrest news, a nearly finished, newly constructed building in Shanghai toppled over, killing one worker. As can be seen in the photo below, it collapsed with just enough room to escape what would have been a far more destructive domino effect involving other buildings in the 11-building complex. (via Shanghai Building Collapses, Nearly Intact - China Journal - WSJ

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