Science: Three-Dimensional Movies?

It takes a sharp, experienced eye to read an aerial photograph, locate targets, measure bomb damage. The picture is flat, looks unnatural because the camera has only one eye and cannot register distance, depth, or solid shape. The third dimension can be added only by double vision, each eye having a slightly different angle on the scene. Such photographs have long been made by double cameras with lenses as far apart as are human eyes. But the production of motion pictures in three dimensions has lagged.

Last week demonstrations by Floyd Ramsdell of Worcester...

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