The path traced by Gyroscope is elliptical in nature and is finally settled towards the meridian. Lets find out how. Path traced by north end of Gyroscope The north end of the Gyro spin axis initially points at some point X, which is above the Earth's...

Sagnac effect : The Difference in path Length (∆L) is directional proportional to Angular Rotation (ω). When course is steady:- Path traveled by F1=2πR Path traveled by F2=2πR When Course changes:-     Path traveled by F1= 2πR+AB Path traveled by F2= 2πR - AB Difference in Path Length i.e. ∆L  =  2AB or ∆L =...