Category: electrical engineering

U.S. Census Bureau employees, circa 1960s, wit…

U.S. Census Bureau employees, circa 1960s, with the Film Optical Sensing Device for Input to Computers (FOSDIC), a device used to transfer data from paper questionnaires to microfilm.

Melba Roy, January 1st, 1964. Roy headed the g…

Melba Roy, January 1st, 1964. Roy headed the group of NASA mathematicians, known as “computers,” who tracked the Echo satellites. Roy’s computations helped produce the orbital element timetables by which millions could view the satellite from Earth as it passes overhead. She went on to become Program Production Section Chief at Goddard Space Flight Center.

Dorothy Whitaker at the National Oceanographic…

Dorothy Whitaker at the National Oceanographic Data Center (NODC) magnetic tape library, circa 1960s-70s.

Thaddeus Cahill’s 1897 patent for the Te…

Thaddeus Cahill’s 1897 patent for the Telharmonium’s tonewheel mechanism, one of the earliest musical instruments to generate sound by means of electricity.

An illustration from Charles Barnard’s 1…

An illustration from Charles Barnard’s 1875 short story “Kate: An Electro-Mechanical Romance”. In this scene, Kate and John are installing a private telegraph line for their amorous communications using abandoned wires.

Margaret Hamilton, lead Apollo flight software…

Margaret Hamilton, lead Apollo flight software engineer, in the Apollo Command Module, circa late 1960s.

1915 illustration of Elisha Gray’s telautograp…

1915 illustration of Elisha Gray’s telautograph system, an instrument designed for the electrical reproduction of handwriting.

Jagadish Chandra Bose with other prominent sci…

Jagadish Chandra Bose with other prominent scientists and engineers at Calcutta University, circa 1920s. Bose was born in Bikrampur (present day Munshiganj in Bangladesh) and made many pioneering developments to radio research in the 1880s. Seated, left to right: Meghnad Saha, Jagadish Chandra Bose, Jnan Chandra Ghosh. Standing, left to right: Snehamoy Dutt, Satyendranath Bose, Debendra Mohan Bose, N. R. Sen, Jnanendra Nath Mukherjee, N. C. Nag.

Alfred Norton Goldsmith, a founder of the Institute of Radio…

Alfred Norton Goldsmith, a founder of the Institute of Radio Engineers, one of the predecessor societies to the modern IEEE, with Italian Nobel laureate Guglielmo Marconi, June 26th, 1922.

Record matrix room, Berliner Gramophone Company, Montréal,…

Record matrix room, Berliner Gramophone Company, Montréal, Québec, 1910.