A logarithm is the power which a certain number is raised to get another number. Before calculators and various types of complex computers were invented it was difficult for scientists and ...

In 1622, William Oughtred created the first slide rule, a simple and easy-to-use calculation device consisting of two parallel logarithmic rulers that can slide past each other. It was the beginning ...

Mark Arnold is currently at the University of Manchester Institute of Science and Technology (UMIST) on leave of absence from the University of Wyoming. He is the author or co-author of more than a ...