Description
Build a motorized robot, race car, and countdown timer — all that run without any batteries or electrical power. The secret behind these fascinating machines is a power source called a mainspring — a spiral-shaped spring that stores up energy when wound up by hand, and then converts that stored energy back into motion when it discharges.
Product Details
- 3-in-1 engineering kit: Assemble three cool robots, wind them up, and watch them go--no batteries required!
- The models are powered by a mainspring, the main device found in old-fashioned clocks.
- Models include a race car that drives up to 60 feet, a robot that walks up to 20 inches, and a countdown timer that counts down up to 6 minutes.
- Learn about potential and kinetic energy and how gears and springs function in different mechanical devices.
- Includes a 64-page, full-color manual with clear language, simple step-by-step illustrated instructions, and scientific explanations.
Specification
| Ages | 6-14+ |
| Experiments | 3 |
| Piece Count | 133 |
| Manual Pages | 64 |
| Product Dimensions | 10 x 11 x 2.5 in. |