Inventions that changed the world

Alexander Graham Bell revolutionized the way people communicate. Readers will enjoy this book about Bell's life and his impact on the world. The text follows Bell's early life and work, with an emphasis on his experiments in sound transmission. Readers will learn all about early telephones and how they worked, as well as a few of Bell's other inventions. Authentic photographs and fascinating content bring Alexander Graham Bell to life. This is the...