A follow-up to the author’s Reinvent the Wheel, Build a Better Mousetrap presents even more projects based on classic inventions–from the kaleidoscope and the hovercraft to the suspension bridge and the solar water heater. It provides the history of each invention, details on how the original inventor solved the problem, and how the reader can reinvent the invention. Each fun, hands-on project includes a step-by-step activity followed by a complete explanation and an "Inventor’s Challenge," where readers are encouraged to find their own solutions to specific problems, as well as observe the world around them and experiment.