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.
As you assemble these models one at a time from over 130 pieces, you will learn about the inner workings of spring-powered devices like wind-up toys and ticking mechanical clocks. Discover the physics concepts of potential and kinetic energy as you experiment with your spring-powered machines. Easy, snap-together assembly requires no glue. The kit includes step-by-step illustrated instructions.
3-in-1 engineering kit: build three self-powered models, then wind them up and watch them go!
Learn about potential and kinetic energy and how gears and springs function in different mechanical devices.
Ages 9 and up (6 and up with help)
Product Features
Easy, snap-together assembly requires no glue.
Step-by-step illustrated instructions.
Experiments: 3
Piece Count: 133
Manual Pages: 64