Optical illusion, 19th century
Framed Prints
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Framed Print of Optical illusion, 19th century
Optical illusion, 19th-century artwork. Array of white circles on a black background, the starting point for a demonstration of an optical illusion. The circles appear to be hexagons depending on how they are viewed, and this illusion persists even when the image is replaced with a grey screen. The illusion, which varies between the right and left eye, is thought to be caused be after-imaging effects in the brain, where curves are interpreted as corners and vice-versa. Artwork from the 13th volume (first period of 1894) of the French popular science weekly La Science Illustree. Science Photo Library features Science and Medical images including photos and illustrations. © SCIENCE PHOTO LIBRARY
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Media ID 6338413
1890s 1894 Annual Volume Array Circle Circles French Grid Hexagon Hexagons La Science Illustree Louis Figuier Magazine Optical Illusion Pattern Popular Science Processes Weekly
Modern 14"x12" (36x31cm)
Ready to Hang Contemporary Framed Prints adds style, protection, and a polished touch to your space - effortlessly.
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Wood effect frame, card mounted, 10x8 fade resistant photo print. Overall outside dimensions 14x12 inches (36x31cm). Environmentally and ozone friendly, 40mm wide x 15mm Polycore® moulding has the look of real wood, is durable and light and easy to hang. Biodegradable and made with non-chlorinated gases (no toxic fumes) it is efficient; producing 100 tons of polystyrene can save 300 tons of trees! Prints are glazed with lightweight, shatterproof, optical clarity acrylic (providing the same general protection from the environment as glass). The back is stapled hardboard with a sawtooth hanger attached. Note: measurements provided are estimated outer dimensions, which include both the image and the frame. While we aim to keep sizing consistent, exact dimensions may vary slightly due to differences in print size or production requirements, which may result in a variation in the overall size (up to approximately 2.5cm (1"))
These are individually made so all sizes are approximate
Estimated Image Size (if not cropped) is 19.3cm x 19.3cm (7.6" x 7.6")
Estimated Product Size is 36cm x 31cm (14.2" x 12.2")
