Published 10 Jan 2010. Tags: math, art+design.
Nomograms (or sometimes nomographs) are graphical single-purpose analog computing devices. They range from the simple—like the above BMI calculator—to the (often beautifully) complex. Once upon a time they were commonly used for navigation, astronomy, surveying, and countless other things. Now, what with cheap omnipresent digital computers, they’ve fallen into disuse.