Johnson's Gyroscope is a curiosity. It performs no function essential to the station. It is a marvel of engineering, however, and many visitors to the station are content to spend hour upon hour watching as its interior parts spin silently and with nearly perfect synchronicity. Mr. Johnson, for whom the instrument is named, was a third cousin to Vice Admiral G.C. Martin. He served in various capacities on the station, including grand sommelier (the wine cellar on Station M has to be one of finest ever assembled).