The mathematical theory of electricity and magnetism (1911)
Jeans, James Hopwood, Sir, 1877-1946 · Cambridge [Eng.] : University Press · leaf 114
etc., are the new coefficients of potential. Further coefficients ofthe type p-i,n+i, P2,n+i, -••,Pn+i,n+i are of course brought into existence, but donot enter into the expression for the energy, since by hypothesis En+i = 0. Since expression (54) is less than expression (53), it follows that {Pu-… … Fig. 40. 122. This instrument is, as regards its essential principle, a balance inwhich the beam has a weight fixed at one end and a disc suspended fromthe other. Under normal conditions the fixed weight is sufficiently heavy 106 Systems of Conductors [ch. iv to outweigh the disc. In using the…
Electricity · Magnetism
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-237-146.webp)
