Cool Technology

Syrian Water Wheel: early 1900s

Syrian Water Wheel: early 1900s

Water wheel on Orontes River, Hama, central Syria north of Damascus. Photo by American Colony, Jerusalem, between 1898 and 1914. LOC original medium: dry plate glass negative.

Frances Densmore at Work: 1917

Frances Densmore at Work: 1917

Frances Densmore transcribing American Indian music at the Smithsonian. Antique cylinder phonograph with large speaker horn. Photo taken between 1911 and 1917. Harris & Ewing, photographer. LOC original medium: glass negative.

Hydro-Aeroplane Exhibit: 1917

Hydro-Aeroplane Exhibit: 1917

Exhibition of the Curtiss Hydro-Aeroplane or Flying Boat, 1917. Exhibit near the House Office Building by National Aero Coast Patrol Commission with Capitol Building in the background. Harris & Ewing, photographer. LOC original medium: glass negative.

Aircraft Wagon: 1922

Aircraft Wagon: 1922

Wheeled vehicle with mounted airplane engine and propeller, 1922. National Photo Company. LOC original medium: glass negative.

Lab Rats: 1912

Lab Rats: 1912

Dr. George Stiles and two women in bacteriology laboratory showing microscope, petri dishes and other lab equipment, 1912. Harris & Ewing, photographer. LOC original medium: glass negative.

Pneumatic Mail Transport: early 1900s

Pneumatic Mail Transport: early 1900s

Pneumatic tube for moving mail at the New York City post office, early 1900s. Used in NYC from 1897 until 1953. Bain News Service, publisher. LOC original medium: glass negative.

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