Host Mo Rocca shows us the innovation of floating down a river on a hammock; the fingerprint padlock; looking back at the female pioneers of the sky; and, saving eyesight in Africa with a smartphone app.

Host Mo Rocca shows us the cargo carrier that follows you; the device that allows doctors to examine you from the other side of the world; a new spin on the old-world butter churn; and, when the car industry moved to muscle cars.