🌉 Toy Block Bridge for a Car: Why Triangles and Arches Are Strong, a Strength-of-Shapes Game for Kids — 2D Side-View Strength Chart

2D side-view companion of the toy-bridge game: the bridge drawn with its real deflection, members coloured by stress, the car crossing and curves of worst stress and sag against car position, from the same beam finite-element module as the 3D page.