They positioned windows to draw on prevailing breezes and dotted clever features like transom windows above interior doors, which could be cranked open to let stuffy air escape while the door stayed shut for privacy.
It says that you can build a machine that is functional, complex, smart, but all in a tiny little package, one so small that it's impossible to see it.
Moving on to a natty little device the whistle key holder, basically, this is where you whistle and the key holder gives off a high pitched noise and flashes light so you can find it.