Dip circle. 17th century illustration of a magnetic dip circle. This is an instrument to determine the angle between the horizon and the Earth's magnetic field at a given point on the surface. At the magnetic poles the dip is +/- 90 degrees,the field lines are perpendicular to the ground. This illustration was first published in De magnete by William Gilbert,printed in London in 1600 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Middle Temple Library |
Bildgröße: | 3234 px × 5433 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |