1. In 1925 Rybin was appointed magnetic deviation chief of the Ob basin. 2. The sources of magnetic deviation vary from compass to compass or vehicle to vehicle. 3. This involved measuring the magnetic deviation as the ship was oriented in several compass directions. 4. Halley also hoped that careful observations of magnetic deviations could provide a determination of longitude. 5. Are you thinking of magnetic deviation ? 6. Non-magnetic methods of taking bearings, such as with gyrocompass, GPS ) or radio navigation, are not subject to magnetic deviation . 7. He knew five languages, accumulated a collection of 1, 100 American plants, observed the weather, and studied magnetic deviation and astronomy. 8. The name, meaning needles in Portuguese, is said to come from the fact that the compass's needle pointed true north there, without magnetic deviation . 9. Thus, a comparison of bearings taken with such methods with the bearing given by a compass can be used to compute local magnetic deviation . 10. In areas of confused magnetic deviation ( such as the Labrador coast ) a sunstone would have been a more reliable guide than a magnetic compass.
Mobile