"Mobile robots." . . "Models and modelmaking." . . "Robots." . . . . . "The LEGO technic idea book. Volume 3, Fantastic contraptions" . . "Livres électroniques" . "The LEGO® Technic Idea Book: Fantastic Contraptions is a collection of hundreds of working examples of simple yet fascinating Technic models that you can build based on their pictures alone. Colors distinguish each part, showing you how the models are assembled. Each photo illustrates a different principle, concept, or mechanism that will inspire your own original creations." . . . . . . "Fantastic contraptions" . . . . . "Electronic books" . . . . . . "LEGO toys." . .