Category: history

1931 photo of the Liaodi Pagoda of Kaiyuan Mon…

1931 photo of the Liaodi Pagoda of Kaiyuan Monastery, Dingzhou, Hebei Province, China. Constructed in 1055, the pagoda stands at 276 feet tall and is the tallest brick pagoda in the world.

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.

Martha Euphemia Lofton Haynes, circa 1900s, th…

Martha Euphemia Lofton Haynes, circa 1900s, the first African-American woman to earn a PhD in mathematics. Her degree was awarded in 1943 by The Catholic University of America for her dissertation “The Determination of Sets of Independent Conditions Characterizing Certain Special Cases of Symmetric Correspondences”.

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.

1933 postcard advertising the Atlantic City Auditorium and…

1933 postcard advertising the Atlantic City Auditorium and Convention Hall. Opened in 1929, the Hall has been designated an Historic Civil Engineering Landmark.

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.

The Bund, a waterfront area in Shanghai, 1930.

The Bund, a waterfront area in Shanghai, 1930.

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

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