One day Oersted saw that moving a compass in an electric cable the needle moves as soon the currents flows, Oersted concluded that an electric current produces a magnetic camp.
Oersted think that if inverting the process he could produce electricity, I mean moving an magnet between a cable or moving cables between an magnet produces a flow of electrons or electricity, this is the principle of the Mini Ecologic Generator (MEG).
Step 1: DC motor
Step 2: Diode
Step 3: A little battery
Believe it or not we finished our MEG all you need to do to produce some electricity is spin the wheel. Now you can use it in any system that spins for example: attach it to the wheel of a remote control car or in a common car, you can make a wind generator with recycle materials (you can use cardboard for the blades, I made this with big motor and you can illuminate your house).