This reminds me of the practice of implanting a very small, very powerful magnet into the tip of your finger - which then allows you to feel magnetic fields. h

This reminds me of the practice of implanting a very small, very powerful magnet into the tip of your finger - which then allows you to feel magnetic fields. http://discuss.biohack.me/discussion/278/so-you-want-to-put-a-magnet-in-your-finger/p1 http://discuss.biohack.me/discussion/278/so-you-want-to-put-... http://io9.com/what-you-need-to-know-about-getting-magnetic-finger-imp-813537993 http://io9.com/what-you-need-to-know-about-getting-magnetic-...