For me it’s the notification light you used to find on older phones, was particularly good to know if your phone was charged without picking it up
For me it’s the notification light you used to find on older phones, was particularly good to know if your phone was charged without picking it up
Those use arrays of electropermanent magnets
Aah cool, interesting
Edit: let me pick your brain regarding them as it seems you know more about them, is it feasible? What I described that is