Tiny nematodes can survive in harsh environments, regenerate damaged tissue, remember things and make decisions. Sharing 70% of their genome with humans, they're being studied for hints about new medicines and human longevity. We'll also look at the world's first fully recycled concrete.

This episode looks at Japan's leading shipping innovations, such as the world's first electric tanker and fuel-saving "air lubrication." Also, out-of-body illusions.