Interesting for sure, but I don't think rings can match the level of a magnet that's implanted beneath the skin. Must be at least a factor of 100 in terms of sensitivity, the magnet on the inside will vibrate in very close proximity to the nerves in your fingers, way more fidelity. I can feel loads on fairly weak appliances, very easily determine ferrous vs non-ferrous--including the degree to which a material is ferrous. Most of the time I forget all about them, until I randomly feel the vibration and realize I'm close to a field. I noticed you said you couldn't really feel laptop charger/transformers, I can definitely perceive these with... (read more)
Interesting for sure, but I don't think rings can match the level of a magnet that's implanted beneath the skin. Must be at least a factor of 100 in terms of sensitivity, the magnet on the inside will vibrate in very close proximity to the nerves in your fingers, way more fidelity. I can feel loads on fairly weak appliances, very easily determine ferrous vs non-ferrous--including the degree to which a material is ferrous. Most of the time I forget all about them, until I randomly feel the vibration and realize I'm close to a field. I noticed you said you couldn't really feel laptop charger/transformers, I can definitely perceive these with... (read more)