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A comment on Why I Had a Magnet Implanted in My Finger.

Re:Why I Had a Magnet Implanted in My Finger by slowmovintarget on Wednesday July 06, 2016 @04:59PM (#12045859)
You can get much of the same "sixth sense" by wearing a magnetic ring instead of an implant... No worries of rejection or infection, and you get to loan the "feeling" out when you talk about it.

Example: https://supermagnetman.com/collections/magnetic-wedding-ring...

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Re:Why I Had a Magnet Implanted in My Finger by dpark on Wednesday July 06, 2016 @05:44PM (#12046083)
This comes up every time someone posts one of these articles. A ring at the base of your finger will not provide the same sensation as a magnet under your fingertip. The nerves are far more sensitive in your fingertips and the transmission of vibration is far more effective when the magnet is trapped between layers of skin vs sitting loosely at the base of a finger.

I expect you could get a similar sensitivity from gluing a small rare earth magnet to your fingertip.

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