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How to Use a Slide Rule

Dibbons

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When I was in grade school back in the '60's my Uncle Jack (real estate broker) tried to show me how to use his slide rule. I was totally lost that day and no one since then ever brought me up to speed. This video shows just a couple of very basic math skills one can perform.

 
When I was in grade school back in the '60's my Uncle Jack (real estate broker) tried to show me how to use his slide rule. I was totally lost that day and no one since then ever brought me up to speed. This video shows just a couple of very basic math skills one can perform.


I should watch and learn... But my phone has a calculator....
I have a really nice professional model slide rule from a talented engineer that worked on the Blackbird project back in the fifties... He passed away over thirty years ago...
 
Does anyone still use the Log Tables booklets .... sine and cosine of angles etc.???

I hated that at school. I think I have a slide rule somewhere in a drawer full of dust.
 
I loved the slide rule, it was almost instantaneous. Of course now I can't remember how to use one. But I do remember they were fast and cool.
 
Does anyone still use the Log Tables booklets .... sine and cosine of angles etc.???

I hated that at school. I think I have a slide rule somewhere in a drawer full of dust.
I had to use Smoley's log tables in steel fab school, never opened one since then.
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I used one for advanced placement chemistry my sophomore year in high school. When I got a C in the course, I figured I was going to be a truck driver, rather than the doctor my mother wanted.
 
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"How to Use a Slide Rule"​

How about a non dial vernier caliper?
 
I have my old slide rules from my Engineering school days in my back room. One of them might be my Dads. I was never great on them - the decimal point location on calculation results was always a bit challenging. I was glad when I finally bought a Bowmar Brain in my senior year as hand held calculators started becoming more accessible. I couldn’t quite swing the HP models that were coming out at the time and their reverse entry logic would probably have baffled my brain anyway.

I remember when I went over to the study hall my last semester to take what was called the EIT (Engineer in Training) 8 hour exam back then, which was probably one of the first sessions where nearly everyone brought a calculator and a charging unit with them. They ran extension cords back and forth across the room to provide enough outlets for everyone to plug their chargers into. It looked like a gigantic spider web spread across the whole big room about 7’ high above our heads.
 
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