Your Questions About Wind Turbine Generators How They Work

How to electric generators work? (Wind turbines etc.)?

I know the basic idea – turn a magnet in a coil of wire. But we did that in school and we could barely make a light stay on for more than a few seconds consistently.

So what is the design behind the generators in wind turbines? How are they actually designed in a real world situation (Not a toilet roll middle with some wire round it).

How do I make a model wind turbine?

I have to build a working model wind turbine for a science project. It has to actually produce energy but it cant be built from a kit nor can it use fancy equipment as it has to be made from house hold materials. I’v searched many web sites but i just cant find anything. Please help!
Thanks in advance