Assertion: gyroscope's spin axis | /r/HasProperty | west of the meridian
Facets:
Source sentences:
text: When the spin axis is west of the meridian Earth’s rotation causes the spin axis to set, thus reducing the pendulous torque.
text: The torque is horizontal and ideally is directed so as to precess the gyro toward the meridian at all times: it points west when the spin axis is east of the meridian and east when the spin axis is west of the meridian.