Descartes optics theory, 17th century

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Descartes optics theory, 17th century

Descartes optics theory, artwork. This is the eye diagram from Descartes book Optics (1637). Three external points are shown depicted on the retina at the back of the eye. The light rays from these three points have been focused on the retina by the structures at the front of the eye, including the lens. The image formed on the retina is being observed by the homunculus at bottom - a human figure that is here being used to represent the unknown process by which the brain interprets a visual image. Artwork from Pioneers of Science (Oliver Lodge, 1893)

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Media ID 6448125

© SHEILA TERRY/SCIENCE PHOTO LIBRARY

1600s 17th Century 1893 Descartes Diagram Eye Ball Focussing Historical Image Imagery Lens Light Nineteenth Century Observing Oliver Lodge Ophthalmology Optics Physiological Physiology Pioneers Of Science Rays Refracting Refraction Retina Sense Theory 1637 Dioptrics Homunculus Physical

EDITORS COMMENTS
This artwork captures Descartes' groundbreaking optics theory from the 17th century. The intricate diagram showcases the eye's anatomy, specifically focusing on the retina located at the back of the eye. Three external points are depicted on the retina, illustrating how light rays from these points are skillfully focused by various structures in the front of the eye, including the lens. At the bottom of this illustration stands a homunculus - a human figure symbolizing our limited understanding of how our brain interprets visual images. This enigmatic representation emphasizes that even though we can observe and comprehend physical processes like refraction and physiological functions within our eyes, there is still much to uncover about how our mind comprehends what we see. The historical significance of this image is further highlighted by its inclusion in Oliver Lodge's renowned book "Pioneers of Science" published in 1893. Lodge was an esteemed physicist who recognized Descartes as one of those pioneers whose theories shaped scientific progress. This remarkable piece not only offers us a glimpse into Descartes' revolutionary ideas but also serves as a testament to humanity's continuous pursuit to unravel nature's mysteries through science and exploration.

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