Eadweard J. Muybridge (1830 – 1904) was an English photographer who spent much of his life in the United States, says Wikipedia.
He is known for his pioneering work on animal locomotion which used multiple cameras to capture motion, and his zoopraxiscope, a device for projecting motion pictures. It pre-dated the flexible perforated film strip.
In 1872, former Governor of California Leland Stanford, a businessman and race-horse owner, had taken a position on a popularly-debated question of the day: whether all four of a horse's hooves are off the ground at the same time during the trot. Up until this time, most paintings of horses at full gallop showed the front legs extended forward and the hind legs extended to the rear. [9] Stanford sided with this assertion, called "unsupported transit", and took it upon himself to prove it scientifically. Stanford sought out Muybridge and hired him to settle the question.[10]
In later studies Muybridge used a series of large cameras that used glass plates placed in a line, each one being triggered by a thread as the horse passed. Later a clockwork device was used. The images were copied in the form of silhouettes onto a disc and viewed in a machine called a Zoopraxiscope. This in fact became an intermediate stage towards motion pictures or cinematography.
At the University of Pennsylvania in the 1880's Muybridge used banks of cameras to photograph people and animals to study their movement.
The models, either entirely nude or with very little clothing, were photographed in a variety of undertakings, ranging from boxing, to walking down stairs, to throwing water over one another and carrying buckets of water.
Between 1883 and 1886 he made a total of 100,000 images, working under the auspices of the University of Pennsylvania. They were published as 781 plates comprising 20,000 of the photographs in a collection titled Animal Locomotion.[16]
Muybridge's work stands near the beginning of the science of biomechanics and the mechanics of athletics.
At the Chicago 1893 World's Columbian Exposition, Muybridge gave a series of lectures on the Science of Animal Locomotion in the Zoopraxographical Hall, built specially for that purpose.
He used his zoopraxiscope to show his moving pictures to a paying public, making the Hall the very first commercial movie theater.[17]
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