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Scientific American, Vol. 5, No. 48 (1850) (1850)

leaf 3

An illustration from Scientific American, Vol. 5, No. 48 (1850), 1850, leaf 3
n fig. 5, or as the outer magnet in fig. 6. al. are presented to it, a cylindrical base, M, : sed with, but it allows a greater body of wire Figure 5. Lis the centre of the magnets’ supports it, and the lower series of planetary tem tothe solar magnets. And I wrap the to be coiled when desired… … central shaft, L. the planetary magnets: the poles of the suc- These series of planetary magnets change cessive solar magnets being on the one side, ewes en aerrr” their poles at the points of perihelion, or near- or end, positive, the succeeding one negative, est approach, and aphelion, or…

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