he problem as to when this photograph plified in practice, since all we need for its solution are of the Creighton University Observatory (at Omaha, the length of C B measured on the roof, and the lengths Neb.) was taken. In the present one I wish to find of AO and AB measured on the photograph on… … on the building and upon the pho- z WHERE DID THE PHOTOGRAPHER STAND WHO TOOK THIS PICTURE? —— =—, that is, we divide thc tograph. In case it should be im- EF DE possible to‘obtain these measures from the building distance of the camera by 57.8, and get HD=13.47 upon the door itself or upon its…
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