U.S. President Barack Obama bounces a soccer ball with his head at Ubungo Power Plant in Dar es Salaam

 
U.S. President Barack Obama bounces a soccer ball with his head at Ubungo Power Plant in Dar es Salaam
U.S. President Barack Obama (L) bounces a soccer ball with his head at Ubungo Power Plant in Dar es Salaam July 2, 2013. The ball, called a "soccket ball", has internal electronics that allow it to generate and store electricity that can power small devices. REUTERS/Jason Reed