My Auto E-ography

I have older siblings, and I remember them coming home with their math homework and doing homework with a logarithmic ruler. I was a numerophile from an early age, and although I had no idea what a logarithm was at the time, I was curious and mystified about how the manual contraption could be solving their equations. I never did actually use the old-fashioned log ruler in my own courses, except maybe perhaps once or twice to demonstrate that it approximated the values generated on my calculator. I still marvel at how technological devices can replicate various tasks by different means.