Jumperbot

With this kit from Thames & Kosmos, you can build an energetic bouncing robot that uses an electric motor and a spring-loaded mechanism to jump forward in a continuous motion. Watch the robot crouch down, compress its coil spring and store up energy. Then see how it instantly extends its legs and releases the stored energy all at once, launching itself upward and forward. Experiment with the metal coil spring to discover how the robot's jumping mechanism works. See if the robot can jump over objects in an obstacle course you design for it. Learn about elasticity, potential and kinetic energy, the spring constant, cams and linkages.

Build six other functional models using the same mechanical components - the spring, cams and motor - to perform other tasks and demonstrate physical science principles firsthand, including a car that moves forward on spiral-shaped wheels; a crab that moves sideways; a kicking machine; and a grappler claw. Assemble a fun amusement park ride that spins around using the electric motor. The full-color, 24-page instruction manual provides step-by-step illustrated assembly instructions.

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