The Hovering Disk is a 3d printed device, which demonstrates almost frictionless motion. The air coming from the balloon is moving through a small whole to the bottom of the disk. At the bottom it is distributed all-over to all sides. This constant air stream prevents the disk from touching the ground and the disk therefore starts hovering.
See the disk in action:
https://youtu.be/wl0n9UZzOhQ
To demonstrate the hovering effect use even surfaces like glass or flat tables.
| Hovering_Disk.stl | 1.3MB |
