Slide rule

António Teixeira1769

Portuguese Maritime Museum, a world of discoveries
Lisboa, Portugal

Slide rule made in 1769 by António Teixeira, in Brazil, then a Portuguese colony. It was used to calculate the triangle of velocities, thus helping to determine the position of the ship.

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Details

Title: Slide rule
Creator: António Teixeira
Date Created: 1769
Location: Permanent Exhibition / Tall Ships Hall
Physical Dimensions: Lenght: 345 mm; Width: 320 mm;
Type: Nautical Instrument
Rights: Belongs to the Museum

Portuguese Maritime Museum, a world of discoveries

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