Based on the experiments of Newton and later on the ones made by Mark Roget and Michael Faraday about retinal persistence, the Belgian Josep Plateau invented in 1832 the phenakistiscope.
The retina, which is a membrane that lines the inside of the eye, senses and sent to the brain via the optic nerve, the changes in the brightness of the image perceived. This membrane secretes a substance that breaks down and is regenerated with an estimated range of a tenth of a second, the vision being in that small space of time "blind" , so after a complicated neurological process, the brain picks up the image and view then the image is closed, to perceive immediately the next and so on, making it possible for successive images representing slight variations of movement, by making them pass more than 12 frames per second rate, perceived as a single image moving.
The phenakistiscope contains in essence, then, the fundamental principle of film, since it is also based on the persistence of vision highlighted by the disk Plateau; images drawn on the disc have been replaced on film by photographic images of celluloid film, but the principle is the same.
Our phenakistiscope is composed of twelve disc with illustrations of the time and is presented in a nice case to make a perfect gift.
Measures:
Of the box: 27x24x5 cm
Instrument:
Mounted with disk height: 33 cm
Each disc diameter: 20 cm
2 opinion(s) "Phenakistiscope"
- RU7LQK4357o
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RU7LQK4357o
10 de Enero del 2017
il vento solare non farebbe sventolare almeno un poco l&e;#3ev9ntuale bandierone? Il vento solare ha la densità di qualche particella subatomica per centimetro cubo (oggi quasi 4). E\' troppo poco per spostare qualsiasi cosa che sia più pesante di un granellino di polvere.Price Recommendation Quality
See more details in the video below that we offer.
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