Episode 18-16 The Valley of Arequipa, Peru

On this week’s Tech Nation, we discover what science might do for Food, Energy, Water and the Environment in the Arequipa Valley of Peru. Purdue University geosciences professor Tim Filley describes their work.

Then on Tech Nation Health, what the World Health Organization calls out as a burning need – healthcare management. Steve Sammut joins us with a solution in Africa. And Tech Nation Health Chief Correspondent, Dr. Daniel Kraft talks about electroceuticals - electricity as medicine.