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Home > All Images > 1993 > October > 18 Oct 1993

Images Dated 18th October 1993

Available as Framed Prints, Photos, Wall Art and Gift Items

Choose from 5 pictures in our Images Dated 18th October 1993 collection for your Wall Art or Photo Gift. Popular choices include Framed Prints, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.


Diagram of magnetic dip on Earth Featured 18 Oct 1993 Print

Diagram of magnetic dip on Earth

Diagram of the Earth's magnetic field. Engraving showing the dip of the Earth's magnetic field at various latitudes, after the work of William Gilbert (1540-1603). In this picture, line AB is the equator, C is the North Magnetic Pole (Arctic) and D the South Magnetic Pole (Antarctic). The tip of the arrows are magnetic south, and the direction of the arrows indicates the direction a freely-rotating compass would point. To test the hypothesis, Gilbert used a special round lodestone called a terrela

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