Posted 8 years ago by andrej in category: geeky   Comments (0)

Posted 14 years ago by bertram2 in category: geeky   Comments (0)

If you visit the YouTube page for this video you can download the actual images and print your own illusions

Posted 12 years ago by boyt in category: geeky   Comments (1)

A proportional-integral-derivative controller (PID controller) is a control loop feedback mechanism (controller) widely used in industrial control systems.

Posted 9 years ago by JPNch1 in category: geeky   Comments (0)

Posted 12 years ago by boyt in category: geeky   Comments (2)