Bacterial Biomagnetism and Geomagnetic Field Detection by Organisms
نویسندگان
چکیده
The Earth is a magnet. Its dipole character from e results massive currents within the molten portion of its core. These currents, presumably by gravitational in driven i energy, induce, the manner of a self-sustaining dynamo, a global dipolar magnetic field with t a magnitude of rouehly g 0.7 gauss at the gne ti poles. Although the ancient Chinese were familiar with the polar alignment of magnetized needles, geomagnetism became science with the publication in 1600 of HilHam Gilbert's classic exposition De Magnete, Magneticisque Corporibus Et De Magno Magnete Tellure: Physiologia Nova, Plurimis ~ Argumentis ~ Experimentis Demonstrata. Gilbert's predecessor, Peter Peregrinus de Maricourt in his Epistola de li
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