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#Mon Aug 09 11:49:32 CEST 2010
Text__QpNq4KObEd-WfYQ0GneCwQ_title=Inclination Compass
Text__QpNq4KObEd-WfYQ0GneCwQ_text=It has been known since the 16th century that the direction of the Earth\u2019s magnetic field deviates from the horizon. Inclination compasses measuring this deviation complement declination compasses in drawing maps of the geomagnetic field.