CC0 Usage Conditions ApplyClick for more information. This collection consists of ten black and white photographs of bombing control instruments and equipment designed and manufactured by Alexander de ...
Elmer A. Sperry casts a long shadow over the history of modern naval, nautical and aeronautical technology, one few people know much about, but should, for a man crowned both the “father of modern ...
The New York-born engineer Hannibal C. Ford (1877-1955) began his career with the South Premier Typewriting Company and then, from 1909 until 1914, worked with Elmer Sperry and the Sperry Gyroscope ...
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