Detektorradio aus Klopapierrolle & Draht – Baue ein Notfall-Radio, das ohne Strom funktioniert!

In this video, I'll show you how to build a crystal radio from a toilet paper roll and some wire – completely without electricity, batteries, or any prior electronics knowledge. This simple DIY project uses the fundamentals of radio technology and demonstrates how fascinating analog technology can be. Perfect for school, experiments, tech enthusiasts, or anyone who wants to understand how radios used to work. You only need a few materials, and the result is a working radio powered solely by radio waves. An exciting project for kids, makers, hobbyists, and anyone curious about technology.