William Gilbert of Colchester, physician of London, On the loadstone and magnetic bodies and on the great magnet the earth. A new physiology, demonstrated with many arguments and experiments .. (1893)
Gilbert, William, 1544-1603, Mottelay, Paul Fleury, b. 1841, tr, Wright, Edward, 1558?-1615 · New York, J. Wiley & sons · leaf 363
force does not proceed through thewhole of the medium, nor exists really as in a continuousbody; and so the spheres are magnetical, and yet are not realspheres existing by themselves. AB is the axis of a terrella and its spheres; CD the equa-tor. In all the spheres, as on the terrella, at the… … DlAGRAM OF THE MOVEMENTS IN THE MAGNETIC SPHERES. garded by the versorium L on the superficies of the terrella.But as is the proportion oi L \.o F on the terrellas superficies,such is that ol G to H in its own sphere, and oi E to D in itsown sphere; so all the revolutions in the spheres to the…
Magnetism
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