The Horse In Motion, Eadweard Muybridge, 1878

via

When a horse trots or gallops, does it ever become fully airborne? This was the question photographer Eadweard Muybridge set out to answer in 1878. Railroad tycoon and former California governor, Leland Stanford, was convinced the answer was yes and commissioned Muybridge to provide proof. Muybridge developed a way to take photos with an exposure lasting a fraction of a second and, with reporters as witnesses, arranged 12 cameras along a track on Stanford’s estate. As a horse sped by, it tripped wires connected to the cameras, which took 12 photos in rapid succession. Muybridge developed the images on site and, in the frames, revealed that a horse is completely aloft with its hooves tucked underneath it for a brief moment during a stride.