Roto is the largest builder of high-quality, museum-grade science exhibits in North America, including hundreds of proven interactives which have delighted science center visitors for a generation. Available singly or to fill multiple galleries for new or renovated science museum projects anywhere in the world, no firm builds and warranties these classic exhibits with greater quality and reliability. A sampling of these catalog exhibits appears below, on topics ranging from motion and fluid dynamics, to sound and light, energy and simple machines, earth science and much more.