| 1. | Using a compass in Greenland involves accounting for a very extreme magnetic declination.
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| 2. | :Magnetic declination can be found on many sorts of maps, particularly nautical charts.
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| 3. | From 1893 daily observations of the magnetic declination were made at the observatory.
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| 4. | Over hundreds of years, magnetic declination is observed to vary over tens of degrees.
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| 5. | Wind, dust, magnetic declination, whatever, Cardinals manager Tony La Russa saw no room for excuses.
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| 6. | Instruments to measure magnetic declination arrived in 1892.
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| 7. | Shen Kuo was the first to discern magnetic declination of true north while experimenting with a compass.
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| 8. | The lowercase Greek letter ? ( delta ) is frequently used as the symbol for magnetic declination.
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| 9. | :: Magnetic declination is a favorite of mine : the variation of the compass needle from true north.
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| 10. | Some magnetic compasses include means to manually compensate for the magnetic declination, so that the compass shows true directions.
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