I was reading an article about stabilization of a spoon done with "motion sensors." I tried googling but I can't understand a thing. I'm really interested in doing some research on this spoon, but I don't get the crux itself. Can anyone please explain to me what are.. motion sensors? And also a bit of how do they work and exactly what work do they do (if possible)? I'll quote it here: "...contains a number of common motion sensors, the type that you might find in your iPhone or digital camera." I apologize if this is posted in the wrong section, I'm new.