Navigation slide rule, c.1800.

Made:
1780-1800

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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Two-ft boxwood slide rule, for navigators, late 18th century

A 2 foot boxwood slide rule for navigators, c.1800. 'Sliding Gunters' , or navigator's rules with a slide are comparatively rare, as most navigators preferred to stick with the ordinary 'Gunter' scale based on the combination of trigonometric, logarithmic and surveying lines suggested by Edmund Gunter in the 1630s.

Details

Category:
Mathematics
Object Number:
1921-676
Materials:
box (wood), brass (copper, zinc alloy)
type:
slide rule (navigation) slide rule (navigation)
credit:
Mr Thomas Manser
status:
Permanent collection

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