Annotation: "Ferdinand von Zeppelin invented the floating airship that bears his name in the late 1800s and made way for a wave of advances in aviation. Reginald Fessenden was a different sort of pioneer, making the first radio broadcasts over long distances in the early 1900s. The time period in which Zeppelin and Fessenden worked also includes the discoveries of Thomas Edison, Alexander Graham Bell, Nikola Tesla, George Washington Carver, and many others. Their work is profiled in this volume and supported with well-chosen photographs. Informative text introduces the lives of both familiar and little-known inventors to readers of all all int