How Do Bridges Not Fall Down?

Have you ever wondered how bridges don't fall down or how really old buildings stay standing up? Basic principles of architecture and engineering, including an introduction to bridges, locks, arches, columns, and skyscrapers, are explored in this newest engaging addition to the How Do series. The How Do series is a great introduction to various STEM topics, each written in a format that encourages audiences to ask questions and guess the answers before exploring the science behind them.