Mr. Hoganmiller, my high school math teacher (1964-68) had a huge slide rule just like that, mounted on the wall above the blackboard.
He used it all the time, showing us how to "get it done". Great teacher, no idea what happened to him.
Hoagie was especially memorable because his summer job was on a survey crew for Hogan and Schock... a local survey/engineering firm that my surveyor cousin Dick Coughlan worked for at the time.
I have my Dad's big K+E slide rule.?ÿ I figured out how to multiply on it one time.
My memory of visiting him at his office in the 60s involves one of the big electric calculator machines.?ÿ He clicked some number keys then hit the thing and it sounded like some serious calculating was going on in there.?ÿ I asked if that was the answer and he said NO I have to look it up in the book here.?ÿ I was very disappointed, look it up in the book? What the heck?
I used one to pass my PLS exam in WI. The old HP 45 battery never held a charge very long.?ÿ
I also have my great uncle's 20" slide rule.?ÿ No fancy extra scales, but extra precision by spreading out the numbers twice as far.
My slide rule from high school is on my office wall, tucked into the sleeve of an 8" floppy containing my resume from 1970 something.
I honestly don't remember how to use either one.
this one is real cheap plastic, I have a much one in the drawer where it will not get damaged.
out of view about a meter to the East is my Curta, and I actually do use that.
The great thing about those floppy drives and the 5 1/2" ones, you knew which side was up and down, unlike these new USB sticks.
