. . .four to seven projects in each volume of this hands-on series. . .demonstrate selected physical principles behind notable modern inventions. Each title opens with a boilerplate summation of the scientific method, very brief [i]dentifications of important associated inventors–Henry Ford for the automobile, for instance–a time line, and a comprehensive list of materials for the ensuing models. . . . The big, bright illustrations include views of partially and fully assembled models, historical photos of inventors and early devices, and extras (such as semaphore and Morse alphabets in Telegraph Projects). . .