The Windows Washing Machine is made out of a pc, an electrical tincan-opener, an alu-frame and two roadbricks.

As the computer rotates 360 degrees around its axis, all desktop elements such as windows, buttons and scrollbars respond to the constantly changing direction of gravity: they fall to the bottom of the screen all the time.
A little stone is attached to the mouse which is also connected to the computer and functions as a balancing receptor. When the computer rotates, the mouse clicks and releases by the changes in gravity.

Harm van den Dorpels.
Thanks Sascha.