For the first few days after the surgery, it was difficult to separate out my newly implanted sense from the bits of pain and sensation created by the trauma of having the magnet jammed in my finger. Certain things were clear: microwave ovens gave off a steady field that was easy to perceive, like a pulsating wave of invisible water, or air heavy from heat coming off a fan. And other magnets, of course, were easy to identify. They lurked like landmines in everyday objects — my earbuds, my messenger bag — sending my finger ringing with a deep, sort of probing force field that shifted around in my flesh.
via Tumblr Cyborg America: inside the strange new world of basement body hackers