River_tamm t1_j4vnky0 wrote on January 18, 2023 at 4:10 PM Reply to comment by KingofCydonia in Baby Bear in a tree by Alex_Sisyphus I'm pretty sure this is a table - it's sand and a metal ball is rolled along with magnets on the underside - so you can program the computer that moves the magnet in wonderful ways like this. Permalink Parent 13
River_tamm t1_j4vnky0 wrote
Reply to comment by KingofCydonia in Baby Bear in a tree by Alex_Sisyphus
I'm pretty sure this is a table - it's sand and a metal ball is rolled along with magnets on the underside - so you can program the computer that moves the magnet in wonderful ways like this.