Kit includes more than 300 building pieces * Build a windmill, two-speed crane, force scale, sail car, mars robot, hammer machine * Experiment with simple machines: gears, levers, screws, inclined planes, pulleys, wheels and axles * Learn and understand the most fundamental physics equations * It is a 64-page, full-color experiment manual * Centrifuge, pinball game, centrifugal switch, ship"s lantern, and dozens of other models