A terrella or globe-shaped magnet with lumps of
A terrella or globe-shaped magnet with lumps of iron to represent mountains and showing the north-seeking property of a magnetic needle. From William Gilbert De Magnete, London, 1600
Picture No
13907722
Media ID
48444223
Size
6000px x 6303px
(3.4MB)
Credit
World History Archive / Mary Evans Picture Library
Source
World History Archive





























