Terrella, c. 1765.

Made:
1760-1770 in London
maker:
George Adams
Terrella, c. 1765. (lodestones; spherical lodestones) Terrella, c. 1765. (lodestones; spherical lodestones)

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King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Terrella, c. 1765. A terrella is a spherical lodestone made of magnetite, a magnetic mineral. The word 'terrella', meaning little Earth, was given to spherical lodestones as they have the same magnetic properties as the Earth. This ornamental example was probably made by George Adams of Fleet Street, instrument maker to King George III.

Details

Category:
King George III
Object Number:
1927-1816
Materials:
brass and magnetite
Measurements:
overall: 170 mm x 85 mm diameter, 0.6 kg
type:
lodestones and spherical lodestones
credit:
King's College, London