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