Shakeable Dynamo Part 1: Why bother?
Firstly, there is no such thing as ‘free energy‘ you have to always put something in to get something out. I call this free energy because it comes from your own movements rather than having to pay cash for a battery or the juice to charge it, I guess it’s better to call it ‘financially free energy’. Also when you look at this, some of you may point out that this isn’t a dynamo because it generates AC current, but I call it a dynamo because of the bridge rectifier built in to that converts this to DC.
Basically like all alternators and dynamos it works on the principle of converting mechanical energy into electrical energy by inducing current in a conducting medium, such as copper wire, using a magnetic field. Typically this is done by rotating a magnet inside coils of wire.
