On this week’s Tech Nation, Moira speaks with Structural Engineer Roma Agrawal about her book, “Nuts and Bolts: Seven Small Inventions That Changed the World in a Big Way.” Then Nicolas Vachicouras, CEO and Co-Founder of Neurosoft Bioelectronics, takes us on an inside tour of our brain and what flexible implants might do. And Tech Nation Health Chief Correspondent Dr. Daniel Kraft talks about the newest XPrize worth an unprecedented $101 Million.