A German Carved Sycamore, Brass and Zinc Mounted Mathematical Model

A German Carved Sycamore, Brass and Zinc Mounted Mathematical Model

1900 to 2000 England

Offered by Finch & Co

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A German Carved Sycamore, Brass and Zinc Mounted Mathematical Model
For the demonstration of spherical geometry
With original printed paper label to the base reading: ‘Bewegliches Holzmodel Zur Erläuterung Des Dandelin’Schen Satzes ….. Leipzig’. (the cotton strings now missing)
Circa 1900

Size: 28cm high – 11 ins high
Provenance: From the estate of Lucas Mellinger, Architect and Mathematician
cf Finch and Co catalogue no. 9, item no. 17, for two other German mathematical models
Mathematics inform our perception of reality and models serve to demonstrate the precision and the elegance of the subject. Spherical geometry is used in the circumnavigation of the globe, particularly by airline pilots and this model pinpoints these lines. Although the earth is a three dimensional object its surface is two dimensional and its geometry is therefore two dimensional. Viewed from above the earth the aeroplane’s path does not appear to be a straight line since it follows the curve of the earth’s surface, but as far as the geometry of the surface itself is concerned it appears to have all the properties of a straight line.
Dimensions
Height 28.00 cm (11.02 inches)
Finch & Co

Finch & Co
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England

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