Reading Metrics
Grade Level
Upper Grades (UG 9-12)
Book Level
8.8
Points
4.0
Fiction/Nonfiction
Nonfiction
Word Count
20716
Points per Word
0.000193
Page Count
144
Points per Page
0.027778
Series
Innovators (Oliver Press)
Description
This book traces the development of weapons through the lives and inventions of such inventors as David Bushnell and the submarine, Samuel Colt and the revolver, and Ernest Swinton and the tank.