This is probably a weird question, but I need a good website that tells me what a flashlight is. Describes and has diagrams about a flashlight. Thanks to all who can help. It's a bit of a project and I can't seem to find any good sites!

In regular flashlights it is just a contact from the bulb to the bateries. what dose the solid state do to the light to make the bulb brighter?

I would think if this is possible in small-scale, could it not be possible in a large scale method of producing energy? What I really need to know is how it works. How is the energy produced by just shaking something?

How does the winding action charge the battery or mechanism inside to allow the light to illuminate?