Host Mo Rocca shows us a women's rain boot stylishly keeping shoes dry; the tomato sorter swatting away the green ones; the folding origami hot drink cup with no plastic lid; and, before superstores, there were general stores.

Host Mo Rocca shows us solar power that follows the sun; the wristband lulling you to sleep; the device letting us know if our water is pure; and, the beginning of superhero comic books.