How a Hand-Cranked Radio Battled AIDS in Africa
A prolific inventor dreamed up everything from the self-weighing suitcase to electricity-generating shoes. But his ultimate invention was a simple device with the power to spread knowledge to the most remote corners the world.
May 19, 2015 at 05:09AM
via Digg http://ift.tt/1ddeVCn
No comments:
Post a Comment