Host Mo Rocca shows us learning the science of gravity with bowling balls; the physics involved with the art of stone balancing; the rivalry between Nikola Tesla and Thomas Edison; and the new bee hive that makes the honey flow.

Host Mo Rocca shows us the mother making sure all children can walk with their parents; innovators growing lungs for those needing transplants; the history of the farm equipment invented to feed the world; the most useful pizza box ever invented.