As you might expect from its name, the "Difference Engine" is a strangely difficult object to describe. You might start by imagining the side of a large crib with uprights ringed by small metal wheels ...

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 ...

Created by Charles Babbage, the Analytical Engine was a general-purpose, completely program-controlled, mechanical digital computer with no human intervention. It was designed to be programmed using ...

This is the first printing calculator sold. From ancient times, scientists and mathematicians have calculated numerical tables. These tables were often rife with error, both from incorrect ...