<p><b>Calling All Tinkerers, Experimenters & Inventors! Unleash Your Creative Powers with Exciting LEGO¿ Innovations </b><br><br>Use science and engineering to transform your bin of LEGO¿ bricks into amazing, movable toys, machines and gadgets. Bestselling author Sarah Dees is back with an all-new collection of projects featuring ingenious designs and simple scientific principles that real engineers use every day. Make yourself a robot pal whose legs move as he rolls along, or a drummer who really plays the drums. Build a wind-up car complete with a flywheel that¿ll send your minifigures zooming. Or challenge your friends to a game of pinball on a LEGO¿ pinball machine you built from scratch. Each project is cooler than the next! <br><br>It¿s easy and fun to build each of these awesome contraptions and games by following the clear step-by-step instructions and photographs. Think you have a different way to build something? Exercise your inventing muscles and tinker away! You¿re in char