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Mouse Mat : Professor Hasner's automatic eyeball, 1862. Creator: Unknown
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Professor Hasner's automatic eyeball, 1862. Creator: Unknown
Professor Hasner's automatic eyeball, 1862....mechanical model of the eye, ...made chiefly for the purpose of demonstrating the complicated and beautifully-contrived muscular movements of the human eyeball...[formed of] a hollow sphere of brass acting on a ball-and-socket joint...A set of strings being secured at proper intervals around the eyeball, each one of which is inserted with anatomical correctness, represent the several muscles of the human eye, and pass at a given distance to a set of small rollers, seen in the Engraving...Each of the rollers has a small pointer, which moves when the string is set in motion over the face of the semicircular plate seen standing near. Each thread then descends to the interior of the box, and is there made fast to as many levers or keys...The keys...when touched, indicate the name of the muscle put in motion, at the same instant its angular movement and deviation are accurately recorded and measured...the pointer shows with mathematical accuracy the limits of [the eyeball's] movements, as well as the power exerted, as one after the other are made to move the globe upwards, downwards, inwards, or outwards. The inventor has generously presented the instrument to the London Ophthalmic Hospital'. From "Illustrated London News", 1862
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Media ID 38078452
© The Print Collector/Heritage Images
Artificial Brass Contraption Diagram Eyes Instrument Invention Machine Machinery Measurement Measurements Measuring Mechanical Mechanism Model Muscle Muscles Ophthalmology Scale Scale Drawing Eyeball
Mouse Pad
Standard Size Mouse Pad 7.75" x 9..25". High density Neoprene w linen surface. Easy to clean, stain resistant finish. Rounded corners.
Archive quality photographic print in a durable wipe clean mouse mat with non slip backing. Works with all computer mice
Estimated Image Size (if not cropped) is 12.6cm x 23.7cm (5" x 9.3")
Estimated Product Size is 20.2cm x 23.7cm (8" x 9.3")
These are individually made so all sizes are approximate
Artwork printed orientated as per the preview above, with portrait (vertical) orientation to match the source image.
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EDITORS COMMENTS
This fascinating print captures Professor Hasner's automatic eyeball, a mechanical model of the human eye created in 1862. The intricate design showcases the beautifully-contrived muscular movements of the eyeball, with a hollow sphere of brass acting on a ball-and-socket joint. Strings secured around the eyeball represent the various muscles of the eye and are connected to small rollers that indicate movement on a semicircular plate.
Each string descends to levers or keys inside the box, which when touched, display the name of the muscle in motion and record its angular movement and deviation. The pointer accurately shows the limits of movement and power exerted as different muscles are activated to move the globe in various directions.
Professor Hasner generously presented this innovative instrument to the London Ophthalmic Hospital for educational purposes. This detailed engraving from "Illustrated London News" highlights not only scientific advancement but also serves as a testament to Professor Hasner's dedication to furthering understanding of ocular anatomy. It is truly a remarkable piece that continues to inspire awe and curiosity over a century later.
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