gorgeous 发表于 2025-3-28 14:40:16
Technique of Magnetic Measurements,struments. These instruments, essentially magnetometers, are distinguished not only by the component of the field they measure, but also by the principle of their working. The principles employed in magnetometers range from the elementary laws of forces acting on a magnetic needle, to the techniquedrusen 发表于 2025-3-28 19:50:32
Magnetic Observatories and Data Analysis,etic reversals. This is a multidisciplinary science and magnetic observatories (MOs) provide data to those institutes, whose interests range from geology, subsurface structural mapping, geophysics (including seismology and earthquake prediction), meteorology, solar-terrestrial physics, and astronomy危险 发表于 2025-3-28 23:31:19
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Experimental Geomagnetism,tions. Palaeomagnetism is a specialized study, which has provided positive evidence of continental drift and development of the hypothesis of plate tectonics. The other major contributions relate to understanding of the generation of EMF, palaeointensity, relative movements of continental blocks, coBasal-Ganglia 发表于 2025-3-29 07:42:29
Upper Atmosphere Studies,ly to electric and magnetic fields. Hence, electrical processes in one part of the system can influence the electrodynamical processes in another distant part. The redistribution of the charged particles in turn can modify the existing electric and magnetic fields in the atmosphere. Hence, an investBlood-Vessels 发表于 2025-3-29 12:47:37
Usefulness of Geomagnetic Research,arbons, in dating rock sequences and in unravelling past geologic movements such as plate tectonics. For studies related to different fields, suitably located MOs are operated throughout the country (Fig. 1.14) and worldwide (Fig. 5.1) to record strength, intensity, and direction of the geomagneticCulpable 发表于 2025-3-29 16:31:19
Perspective,ted to Earth and interplanetary space. These discoveries whetted the curiosity of the inquisitive mind to unravel the causative agents and look for interrelationships between the Earth, the Sun and other planets or satellites and use this knowledge to predictive purposes. Intricacies of changes in t