Self-healing plastic bleeds when cut, and that's a good thing
 

Wouldn't it be great if everything was as good at healing itself as our own skin? That's the concept behind a new self-healing plastic that's been developed over at the University of Illinois at Urbana-Champaign. Unlike ordinary plastics, this one...

http://www.engadget.com/2014/05/11/s...=rss_truncated