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Engino Discovering STEM Mechanics: Gears & Worm turns abstract mechanics into action. Young engineers explore gear ratio, force-speed trade-offs, bevel and crown gears, rack-and-pinion, and worm drives while building real working machines. The booklet teaches how gears reduce or increase speed, change force, and transfer motion; it also shows how worm drives cut rotational speed dramatically and how screws turn rotation into powerful linear motion. Structured theory, hands-on experiments, and quizzes guide learning, from a carousel speed study to a helicopter gear-train investigation. Build guidance is available in print and online, with a 3D viewer for error-proof assembly. Designed for young engineers to master gears & worm drives through play.
