William Gilbert's Dip Instrument for measuring the dip of the magnetic field. The diameter of the dial was "six fingerlengths". The instrument was made of wood and brass,with a steel needle magnetised by hand rubbing with a lodestone. The illustration was published in Gilbert's book De Magnete,first published in 1600. This picture was taken from the second edition reprinted in 1628 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 2683 px × 3425 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |