Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon . in Bussia and Scheimpflug in Aus-tria have also lately done good work. The former was com-missioned by the Russian Government to make photographs inTransbaikalia, Transcaucasia, and other places, and kites seemedto him likely to be suitable for the work, seeing that a wind wasalways blowing in these mountainous parts. In 1899 he con-structed an apparatus consisting of seven cameras. The largest a. z 338 AIRSHIPS PAST AND PRESENT. of these took plates 9-J
Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon . in Bussia and Scheimpflug in Aus-tria have also lately done good work. The former was com-missioned by the Russian Government to make photographs inTransbaikalia, Transcaucasia, and other places, and kites seemedto him likely to be suitable for the work, seeing that a wind wasalways blowing in these mountainous parts. In 1899 he con-structed an apparatus consisting of seven cameras. The largest a. z 338 AIRSHIPS PAST AND PRESENT. of these took plates 9-J by 9-J in., and was placed in the middle,pointing vertically downwards. The other six were arranged atthe corners of a regular hexagon, pointing downwards at anangle of 10° to the horizontal. His first attempts were not verysuccessful. At last he completed his arrangements, but it wasthen found that the plan was not altogether suitable. He after-wards built a lighter apparatus, and worked successfully alongthe coast and rivers. His first combination weighed 44 lbs., butthis was reduced to 13 lbs. in the later designs. The lens, which.
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Keywords: ., bookcentury1900, bookdecade1900, bookpubl, booksubjectaeronautics
