ScienceWiz(R) Inventions: This multi-award winning book and kit uses everyday materials to build A spinning motorA clicking telegraphA light-flashing generator A real radio.The use of simple materials (no plastic required) helps to demystify the "why" as well as the "how." The step by step, fully-illustrated, 40 page book makes the projects very doable and the explanations easy to understand. Imagine building a working radio using only aluminu...
CHF 34.90
