Sun-dial Robert White
Product images of Sun-dial
A plate depicting an instance of ‘projective dialling', where a horizontal dial is projected against a window. A string hangs from the ceiling, adjacent to the meridian line, and a figure lines it up against the light from the sun, thus recording the time.
Inscribed below: ‘Against Page 99 of the Ninth Tractate.’
Plate 18 from William Leybourn’s Dialling: plain, concave, convex, projective, reflective, refractive… (Black Swan, Pater-Noster-Row, 1690)
William Leybourn (1626-1716) British mathematician and land surveyor was not a Fellow of the Royal Society.
- Image reference: RS-18013
- ©The Royal Society
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Manufactured in the UK
All products are printed in the UK, using the latest digital presses and a giclée printmaking process.
We only use premium branded inks, and colours are independently verified to last between 100 and 200 years.