Posted June 25, 201410 yr This guy in Baltimore cam up with a gizmo to collect trash from a river or harbor NPR story http://www.npr.org/2014/06/23/324738205/baltimores-water-wheel-keeps-on-turning-pulling-in-tons-of-trash?utm_source=facebook.com&utm_medium=social&utm_campaign=npr&utm_term=nprnews&utm_content=20140625
Create an account or sign in to comment