The Motion of a Gyroscope Freely Falling Along the Radial Geodesic in the Space-Time of a Black Hole with a Global Monopole

By means of the orthonormal frame,the motion of the axis of a gyroscope freely falling along the radial geodesic in the space-time of a black hole with a global monopole is investigated.It is shown that the axis of the gyroscope rotates about the radial direction as it falls into the black hole.