Have you ever seen an apple defy gravity? With the Thames & Kosmos Newton's Apple Tightrope-Walking Gyrobot Kit, your young learner can make it happen. This kit contains seventy-four pieces plus an illustrated full-color experiment manual with instructions on building its bright green gyro-powered apple robot and walking it along a tightrope. With this fun and engaging kit, kids ages eight and up learn the principles behind gyroscopic devices by getting the robot to walk on tracks and strings.