http://www.ted.com Dr. Seyi Oyesola helped develop the “Hospital in a Box” to solve a few of the problems plaguing health care on the African continent — distance between doctors, spotty power, lack of supplies. But solving the health crisis in Africa will take more.

http://www.ted.com Sculptor and engineer Arthur Ganson talks about his work — kinetic art that explores deep philosophical ideas and is gee-whiz fun to look at.