Columbus is host to the National Hockey League All Star game this week-end. The NHL showcase will bring thousands fans and visitors to the city as well as international media attention.
NOVA: Making Stuff Cleaner- Wed., Aug. 28 at 9pm on WOSU TV
Host David Pogue is on a quest to clean up, using new green materials to build and power the devices of the future. Batteries grown from viruses, plastics made of sugar and solar cells that cook up hydrogen are just the beginning of a new generation of clean materials.