Real stars, galaxies, and interstellar visitors in 3D, colored by their Doppler shift — and heard in quadraphonic sound that tells you where you are pointed. Music generated from the orbits themselves, with a player for your own tracks. Light-year scale.
A clockwork model of the solar system, named for the Earl who commissioned one in 1713. Planets as 3D globes, comets on real Kepler orbits, spacecraft flythroughs, generated music, and a player for your own audio, video or live input. AU scale.