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Title: James Gregory, 17th century Scottish mathematician and astronomer. Artist: Unknown
Caption: James Gregory, 17th century Scottish mathematician and astronomer. In 1663 Gregory (1638-1675) published Optica Promota describing his design for a reflecting telescope, an example of which was constructed by Robert Hooke. He was a supporter of the theories of Isaac Newton, with whom he corresponded.
Credit: Album / Oxford Science Archive / Heritage Images
Image size: 2752 × 3799 px | 29.9 MB
Print size: 23.3 × 32.2 cm | 1083.5 × 1495.7 in (300 dpi)