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