There are Magnetic bacteria but this is certainly just heat/moisture related.
Comment on Double Plug Experiment
randamumaki@lemmy.blahaj.zone 3 weeks ago
Could it be electromagnetic fields making it grow in that pattern?
pigup@lemmy.world 3 weeks ago
FiniteBanjo@feddit.online 3 weeks ago
It’s probably that the plaster around the outlet when they installed it is mold resistant.
garibaldi_biscuit@lemmy.world 3 weeks ago
And/or paint