| 1. | In 1925 Rybin was appointed magnetic deviation chief of the Ob basin.
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| 2. | The sources of magnetic deviation vary from compass to compass or vehicle to vehicle.
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| 3. | This involved measuring the magnetic deviation as the ship was oriented in several compass directions.
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| 4. | Halley also hoped that careful observations of magnetic deviations could provide a determination of longitude.
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| 5. | Are you thinking of magnetic deviation?
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| 6. | Non-magnetic methods of taking bearings, such as with gyrocompass, GPS ) or radio navigation, are not subject to magnetic deviation.
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| 7. | He knew five languages, accumulated a collection of 1, 100 American plants, observed the weather, and studied magnetic deviation and astronomy.
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| 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.
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| 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.
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| 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.
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