On Thursday, 12 September 2013 20:12:45 UTC-3, Mr. Luddite wrote:
I was down in the basement going through some boxes of junk and came

across my K&E sliderule that I used back in high school while taking a

drafting course. I was never very proficient with it, but I

remembered how to do basic functions like multiplying a couple of

numbers.



So, my 15 year old grandson showed up at the house. I handed him the

slide rule and asked him if he knew what it was.



Not a clue. He played with it a little then handed it back asking

what it was.



I explained it was a slide rule and, if you knew how to use it, it

could solve very complex math problems.



He said, "Cool, but I can do all that on my cell phone".


I have mine stashed away up in an old trunk, up in the attic.
Wish I still had the instructions that came with it. I forget how to do anything other than the simplest calculations.