This ten-key non-printing electric pinwheel calculating machine has an iron frame painted dark green. It has fully automatic addition, subtraction, multiplication, and division, as well as electric ...

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 stepped drum, manually operated ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. In 1642, French mathematician Blaise Pascal invented a calculating machine that could add and ...

Jeroen van den Bos and Davy Landman honor the computer scientist Alan Turing by recreating his calculating machine with LEGOs. Kasia Cieplak-Mayr von Baldegg is the former executive producer and ...

SCIENTIFIC computing has been materially aided of late years by the development of calculating machines, a development in which scientific workers themselves have had a say. We may instance the use of ...