The Human Meat Mole
webword writes "SciTech Daily is reporting on a 'mole' that Japanese scientists have developed that can cut through a 2cm thick chunk of beef steak in 20 seconds. The tiny machines could be injected into a vein, and could be steered around the body using an external magnetic field. The idea is to use them to remove cancerous tissue and move drugs around the body. Not that anyone cares, but they remind me of the bore worms from Flash Gordon."
If there's a little robot inside my arteries I think I'd rather that it DIDN'T have the capability to cut through meat. That could play real havoc with various sphincters I think. Suppose the things takes it's bearings, discovers it's in the heart, but really wanted to be in my liver. The most direct route might not be the one that is the best.
On the other hand, it would be cool to attach a little wire to this thing and have it run around my torso and limbs just under the surface of the skin. Voila! My very own subdermal chain mail! That would be very cool.
If tits were wings it'd be flying around.