Host Mo Rocca shows us the fog security system that deters burglars; the jet hoverboard that flies over 100 mph as high as 9,000 feet; the new discovery to grow crops in deserts; and, the history of ham radios keeping the world connected.

Host Mo Rocca shows us the woman who tames robots; keeping your phone clean with a box of light; the headset describing sight for the blind; and, how refrigerators came to our kitchens.