Documents Geomagnetism (I)

Geomagnetism (I) The Earth’s magnetic field Magnetic field of the Earth measured at the surface comes from three sources: 97-99% represents main field generated by dynamo…

Documents Magnetism

Magnetism Magnetism Chapters 36 & 37 Magnetism A brief history Lodestones were found in Greece some 2000 years ago. The Chinese later used them for navigating ships.…