Ultrathin membrane makes plane cabins 100x quieter
 

While air travel is quicker and safer than driving, it's also louder. The continuous low-frequency drone of the engines is why some people invest in noise-canceling headphones. To help reduce that non-stop hum, researchers at North Carolina State Uni...

http://www.engadget.com/2015/04/27/a...=rss_truncated