Category: mechanical engineering

Trackwomen, Baltimore and Ohio Railroad, 1943.

Trackwomen, Baltimore and Ohio Railroad, 1943.

Unidentified riveter at Lockheed Aircraft Corp…

Unidentified riveter at Lockheed Aircraft Corporation, Burbank, California, circa 1940-1945

Anna Bland, a burner, working on the SS George…

Anna Bland, a burner, working on the SS George Washington Carver, April, 1943.

Alexander Graham Bell’s Oionos triplane,…

Alexander Graham Bell’s Oionos triplane, 1910

Illustration of a hydropowered perpetual flute…

Illustration of a hydropowered perpetual flute from “The Book of Knowledge of Ingenious Mechanical Devices” by Ismail al-Jazari in 1206.

Samarkand Station, Russian Empire (modern day Uzbekistan), 1890.

Samarkand Station, Russian Empire (modern day Uzbekistan), 1890.

Holt Steamer No. 77, the second prototype of a…

Holt Steamer No. 77, the second prototype of a crawler-track-type tractor built by the Holt Machinery Company, 1905.

Harriet Quimby in the cockpit of her Blériot monoplane, 1911.

Harriet Quimby in the cockpit of her Blériot monoplane, 1911.

Dawn O’Mara sitting on the edge of the front cockpit of a de…

Dawn O’Mara sitting on the edge of the front cockpit of a de Havilland DH82 Tiger Moth biplane, circa 1953.

Depiction of the flight of M. Poitevin, July 14, 1850. M….

Depiction of the flight of M. Poitevin, July 14, 1850. M. Poitevin and his horse flew over Paris in a hot air balloon. Poitevin later declared having seen Paris from so high, that the city looked like a map.