Wednesday, January 04, 2017

Today's Vintage Ad


3 comments:

Ken said...

Maths is never simple!

Don Coffin said...

I always hated slide rules.

Mike Stamm said...

It's been decades since I used a slide rule, and I never learned how to use it to its full capacity, but I enjoyed it; back in the late '60s, a friend and I were invited to teach our science class how to use one, since we were the only ones who knew how. And I still have two or three, with an instruction book, against the day when all the electronics fail...