Quote:
Originally Posted by GH85Carrera
On November 11, 1935 Albert W. Stevens took a specially designed infrared camera to a height of 72,395 feet over South Dakota. Albert took the first photograph of the left to right curvature of the earth. This was published in the May 1936 issue of National Geographic. A 35″x17″ insert was included in the issue. I purchased a copy of the magazine and the fold out. A high-resolution scan of the insert is included below.
The photograph was taken with a Fairchild K-17 camera with a Kodak 304mm f5 lens on Eastman infrared Aero film through a red filter. The film is 9″ wide for a huge photograph.
-https://mctoon.net/first-curve/ |
You can read more about the flight and the scientific experiments conducted on it here:
https://archive.org/details/national-geographic-magazine-complete-pdf/National%20Geographic%201936-05%20069-5%20May.pdf