Wilde's explication of the secular variation phenomenon of terrestrial magnetism
نویسندگان
چکیده
منابع مشابه
analysis of reading comprehension needs of the students of paramedical studies: the case of the students of health information management (him)
چکیده ندارد.
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Chapters in the History of Terrestrial Magnetism
1--The science of Terrestrial Magnetism is based on the fact that a magnet, free to move about its center of gravity, tends to assume a position of relative rest in an approximately definite direction with respect to the geographical meridian and the vertical at the place of observation. That it should do so must be due to the existence of a field of force which is known as the terrestrial magn...
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Chapters in the History of Terrestrial Magnetism
l•In Chapter I* it was shown that the compass had been brought into use in northwestern Europe for the purposes of navigation by the year 1187, that its first mention in the literature of that year does not refer to it as being of recent introduction, that the discovery of the directive property of a magnet in the Earth's f•eld must have preceded this application by some considerable time, but ...
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ژورنال
عنوان ژورنال: American Journal of Science
سال: 1892
ISSN: 0002-9599
DOI: 10.2475/ajs.s3-43.258.496