Gvilielmi Gilberti Colcestrensis, medici londinensis, De magnete, magneticisqve corporibvs, et de magno magnete tellure; physiologia noua plurimis et argumentis, et experimentis demonstrata / [William Gilbert].

  • Gilbert, William, 1544-1603.
Date:
1600
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    DE MAGNETE, LIB. lil. Ijp C A P. XII; Q^modo verticitas exiftit in ferro quouis excodo magnete non excito. Adlenus naturales & ingenitas caufas, & acquifitas per lapidem potentias declarauimus: Nunc vero & in excocto ferro lapide non excito, magnetica- rum virtutum caufe rimandae funt. Admirabiles nobis magnes & ferrum promunt & oftendunt fub- tilitates.Demonftratum eftantea fepius,ferrum Ia¬ pide non excitum infepten^nes ferri &meridiemjfed & habe¬ re verticitatem, id eft proprias & fingulares polares diftindiones, quemadmodum magnes, aut ferrum magnete attritum. Iftud qui¬ dem nobis mirum & incredibile primum videbatur; Ferri metallum ex vc na in fornace excoquitur, effluit ex fornace, & iri magna maf- fam indurefcitjmalTa illa diuiditur in magnis officinis, &in bacilla ferrea extenditur, ex quibus fabri rurfus plurima componunt inftru- menta, & ferramenta neceffaria. Ita varie elaboratur &in plurimas limilitudines eadem maflTa tranfformatur.Quid eft igitur illud quod
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