Well's natural philosophy : for the use of schools, academies and privte students, introducing the latest results of scientific discovery and research ; arranged with special reference to the practical application of physical science to the arts and the experiences of everyday life ; with three hundred and seventy-five engravings (1873)
Wells, David A · New York : Ivison, Blakeman, Taylor and Co. · leaf 432
is nearest the south pole.Accordingly, a needle which was accurately balanced on its support before being mag-netized, will no longer baUance itself when magnetized, but in this country its north polewill appear to dip, or appear to be the heavier end. Tliis circumstance has to be correctedin ships… … 428 WELLSS NATURAL PHlLOSOPnY. ing, that the points upon the earths surface where the greatest degree of coldis experienced, or where tlie yearly mean of the thermometer la lowest,coincides with the location of the magnetic poles. What is the ^^^ B^side the variation from the trueuo!rof^the north…
Physics · Science · Technology
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