David B. Steinman Papers, 1907-1959

Armstrong, Edwin H. (Edwin Howard), 1890-1954

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Edwin Howard Armstrong is one of America's greatest inventors and scientists. He was born in New York City on December 18, 1890 and died there on January 31, 1954. Armstrong studied electrical engineering at Columbia University. In 1912 he invented a feedback circuit that allowed signals to be produced with greatly increased amplification. This invention is the basis of radio and television and for it he was awarded the Franklin Medal, the highest U.S. scientific honor. In 1933 he invention circ...

Finch, James K.

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Steinman, D. B. (David Barnard), 1886-1960

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Engineer. From the description of Papers, [ca. 1920]-1960. (Unknown). WorldCat record id: 155504068 David B. Steinman, 11 June 1886- 21 Aug. 1960, bridge design engineer known for his studies of airflow and wind velocity that helped make possible aerodynamically stable bridges. He assisted in design and construction of the Hell Gate Arch Bridge (New York City), the Florianopolis Bridge (Brazil), the Mackinac Bridge (Michigan), and the Triborough Bridge (New York City). ...

Columbia University. Dept. of Civil Engineering and Engineering Mechanics.

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