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Историческую версию EarthGeoMagnetic Calculator 3D можно получить на Android
Магнитное поле
Earth Geo Magnetic Calculator 3D
can be used to estimate magnetic field at a given point on Earth, and in particular, to compute the magnetic declination from true north.
Gps Information
• Location Address
• Altitude (M,FT)
• Longitude
• Latitude
• Speed (KM/MPH)