Innovation stems from the minds of individuals who recognize a need and strive to develop a new way to fill it. One such innovation was the difference engine, an automatic mechanical calculator ...

Difference Engine A numerical table is a tool designed to save the time and labor of those engaged in computing work. The oldest tables which are preserved, were compiled in Babylon in the period 1800 ...

Calculating machines were sometimes used to compute and print the mathematical tables widely used by nineteenth century engineers, mathematicians and scientists. A small number of digital computing ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This is a replica of the portion of a ...