Unit 8 · Electricity and MagnetismThe Geomagnet
Words of This Topic
- Geomagnet: the giant magnet that the Earth itself is.
- Geomagnetic field: the magnetic field that the geomagnet makes all around itself.
- Neutral point: the point where the effects of two magnetic fields cancel each other.
- Geographical meridian: the surface joining the two geographic poles of the Earth.
- Geomagnetic meridian: the surface joining the two poles of the geomagnet.
- Magnetic declination: the angle formed between those two meridians.
- Declinometer: the instrument that measures declination.
- Aeronautical map: a map made for flying, which also gives the value of declination.
- Magnetic inclination: the angle the needle makes with the horizontal, also called the magnetic dip.
- Geomagnetic equator: the line where the needle lies parallel to the horizontal.
- Dip circle: the instrument that measures the angle of dip.
- Ores: the rock or earth from which a metal is taken out.