Messer smiled widely when Professor Roslund gave points for his answer. Then the Professor put back the sun dial and held up a new object. His eyes automatically went to the object. Oh he know that one. Messer raised his hand up in the air "Its a Nocturnal, Sir. Its a portable instrumentused to determine the time based on the position of a certain star in the night sky. The nocturnal is an instrument developed for use by sailors who noticed that the northern stars appeared to rotate around the Pole Star." Speaking of Pole Star he felt a little deja vu.