in the real world
SCIENCE!
Elevators are an example of an Atwood machine.
How can the lemon battery project be applied in the real world
hfgh
selling insurance owning a casino
engineering
uses of crank rocker mechanism
photovoltic and photoelectrochemical cells <-- google that Alage for biofuel <-- or that!
An application called World Traffic is in development and should be out in September.
Object oriented means the internal structures used in an application represent the real world 'objects'. This means the application you are creating is using a model that is closer to the real world and that is always an advantage. The biggest advantage may be in the form of easy maintenance as the application evolves.
One obvious example would be cooking food.