How six cups of ground coffee can improve nose, throat surgery.

How six cups of ground coffee can improve nose, throat surgery.Engineers have designed a 'granular jamming cap' filled with coffee grounds that can improve the accuracy of the sophisticated 'GPS' system that surgeons use for nose and throat surgery. In essence, that is what a team of Vanderbilt University engineers are proposing in an effort to improve the reliability of the sophisticated "GPS" system that surgeons use for these delicate operations. They have designed a "granular jamming cap" filled with coffee grounds that does a better job of tracking patient head movements than current methods.more