Make your own contraptions

the long version

This book shows you how to create the most mazelike contraptions imaginable. The different components that go into making a contraption, and how to build them. The scientific, mechanical, and engineering secrets behind each of the components. How to build working models that demonstrate all of the techniques. Finally, and most importantly, this book contains 50 easy-to-follow projects that show you how to make your own fiendishly complicated machines.