This book documents several key inventions that have had an important impact on the growth of our modern industrialized world. Each chapter is more than a history of a particular invention it is also the story of the inventors who created these new products and processes. The book has been divided into four units - power, manufacturing, communications, and transportation. It can be used as a home school text book. Comprehension questions at the end of each chapter will help students to evaluate how well they understand the text. Frank Bachman PB 280 Pg.
