Gregory's Server@freemo
... to find out that it's already patented in the end.
But still fun!
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3 comments
 @skobkin being done with a small ball: https://incoherency.co.uk/blog/stories/electromagnet-grid.html  @freemo |
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Top-level
3 comments
@skobkin being done with a small ball: https://incoherency.co.uk/blog/stories/electromagnet-grid.html @freemo |
@skobkin
checkers with some ferrofluid looks easy enough :)
https://www.researchgate.net/figure/Ferrofluid-in-movement-on-a-hexagonal-grid-of-electromagnets-on-board-the-ISS-KSat-eV_fig2_334770953