This was selling for $40.82 last week and is now the lowest price ever from Amazon.
- 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