Download or read book El Abece Visual de Los Inventos Que Cambiaron el Mundo 1 written by Silvana Franzetti and published by . This book was released on 2013-06-30 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: Answers questions about inventions and technological developments, including water wheels, the alphabet, money, chocolate, eyeglasses, printing, mirrors, parachutes, oil platforms, typewriters, radio, television, and hydroelectric dams.