The biggest eye in the world winked open and shut last week, a finished article. It was a long-range camera for the Army air service, with a nine-inch lens (the largest ever ground for a camera) to photograph the earth from an altitude of seven miles or so. Experts of the Eastman Kodak Company (Rochester, N. Y.) had fashioned it, providing also a film specially sensitized to record light at the infra-red (long wave, dull light) end of the spectrum, a film taking exposures nine inches square, 100 exposures to a roll. Lieut. George...
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