Magnetic dip and latitude. Page from 'De Magnete' (On the Magnet,1600) by English physicist William Gilbert (1544-1603). This diagram was provided by Gilbert as a means of using a magnet to determine latitude without any need to see the Sun or stars. His experiments with a terrella ('small Earth',magnetised sphere) had shown that the magnetic dip of a needle depended on latitude. 'De Magnete' reported Gilbert's studies of magnetism and electricity. He theorised that the two forces were closely related. He also considered the Earth to be a spherical magnet. This first edition of 'De Magnete' consisted of 115 chapters in six books and 246 pages. This folio is from between pages 200 and 201,chapter 8,book 5 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Library of Congress |
Bildgröße: | 4487 px × 4769 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |