A prototype of a turbine designed by the firm MCE was visualized in the CAVE at the Ars Electronica Center. The application is an early example of industrial simulation in the CAVE environment.
Humphrey was no conventional flight simulator. It was a special construction that let users fly through virtual worlds. Unlike conventional flight simulators that simulate „flying a vehicle“, “Humphrey” simulated the flying itself… free as a bird, a Superman or Supergirl.