What Kind Of Ruler Is This?
By LawrenceWhile doing clean up I found this ruler. I got this from my father back in 1970s.
Do you know what it is?
Will post the answer tomorrow.
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It is a 6 inch mini slide rule =)
Interesting
Missed this one. Didn’t see it or I would have won the prize. 🙂 I still have the one I used when in school (a 10″ Faber Castell from Germany – cost an arm and a leg in those days, as a German imported product). I guess your dad and I went to school at the same time – before calculators, if any one knows what those are – leave alone a slide rule. 🙂
I am reminded of a joke about grandpa showing a leather bound book to his grandchild – who then asks with a puzzled look … how do you turn this darn thing on?
🙂
nice one! =)
He is about your age. I remember using the slide rule in exams where the teachers forbid the use of calculators. They don’t even know what the ruler can do. =P