Summary: In this hour, we hear about a materials science advance that makes metal repel water, discuss black holes with Roger Penrose, learn about the health of coral reefs off the coast of Cuba, and take a tour of the Explorers Club.
Summary: In this hour, we hear about a materials science advance that makes metal repel water, discuss black holes with Roger Penrose, learn about the health of coral reefs off the coast of Cuba, and take a tour of the Explorers Club.