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.
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Details
Creative#:
TOP07425423
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N
Property Release:
NO
Right to Privacy:
No
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