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 mounted photograph shows the ...

In the course of the 1970s, handheld electronic calculators transformed the way tens of millions of people did arithmetic. Engineers abandoned slide rules, business people gave up desktop calculating ...

Ancient civilizations didn't have super computers in their pockets, but that doesn't mean they did all their math by hand. Calculators haven't always been accurate, but engineers, scientists and ...