Ramsden's circle, a five-foot high vertical circle finished in 1789 by the English scientific instrument maker Jesse Ramsden. Copperplate engraving by Wilson Lowry after a drawing by J. Farey from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1820.

- Image ID: P6EN6Y
Ramsden's circle, a five-foot high vertical circle finished in 1789 by the English scientific instrument maker Jesse Ramsden. Copperplate engraving by Wilson Lowry after a drawing by J. Farey from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1820.
Album / Alamy Stock Photo
Image ID: P6EN6Y