Great Discoveries and Inventions That Changed the World

History’s Greatest Innovations Take an extraordinary journey through the wonders of transportation, communications, medicine, information technology, and everyday devices in Great Discoveries and Inventions That Have Changed the World. Within this fully illustrated book, you’ll encounter the developments of robots and space travel as well as the common zipper and ballpoint pen. You’ll also learn the history behind gramophones and smartphones, light bulbs and lasers, and vaccines and video games.