Dinamo
There are a couple of things and stuff that use Dynamo as a tool to run. Dynamo used to transform electricity into motion style style or other style in accordance with the usefulness of the object.
Some examples of these are bicycles that use Dynamo will turn the motive force being light on lamps that are used when the evening. Or, any ordinary Dynamo used to make propeller as the basis for creating the fan as a task given by teachers at the school.