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Description: | This is the 63rd volume of papers of the Royal Astronomical Society, covering the years 1902-3. Among the papers for the June 1903 issue is one contributed by Edward Walter Maunder (Photography and Spectroscopy Assistant at the Royal Observatory) and Joseph Edward Evans (Headmaster of the Royal Hospital School at Greenwich) ?Experiments as to the Actuality of the ?Canals? observed on Mars?, pp.488-499. This paper reported on vision experiments carried out with the help of boys from the Royal Hospital School, in which they were sat at increasing distances from drawings of the surface of Mars made by Maunder. The boys furthest away were more likely to draw straight lines, which their eyes resolved from dots on the surface. This showed that ?canals? observed on Mars were a visual artefact. The article includes plates of the drawings by Maunder and by some of the boys. | Publisher: | "http://collections.rmg.co.uk/" | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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