On May 16, 2022, at 01:08, Greg D <[email protected]> wrote:Yep!? Once I was shown that trick (adding using linear rulers), the rest was obvious.
I did a short presentation on it to our ham club a few years ago:? https://www.youtube.com/watch?v=OZWMzUpMSis
Enjoy,
Greg? KO6TH
Burns Fisher wrote:
Absolutely re understanding the problem.? I learned about logs by using two rulers like a slide rule to realize that we are actually adding if the scale were linear.? I think many users at the time did not really know why the slide rule worked for multiply and divide
On Sun, May 15, 2022 at 4:01 PM Greg D <[email protected]> wrote:
More than just logarithms. Slide rules force one to understand the problem being solved. It's far too easy to come up with the wrong answer (to 9 digits of "accuracy") using a calculator, with total confidence in the result.
Greg KO6TH
On May 15, 2022 12:52:41 PM PDT, Burns Fisher <[email protected]> wrote:I used? a slide rule all through HS and college, but the most long-term and useful long-term thing I learned was how logarithms work.
On Sun, May 15, 2022 at 3:33 PM <[email protected]> wrote:
Clint, All,
?
There were several large wooden slide rules made by Pickett and other manufacturers as teaching props. My son has one that is a straight forward two scale Log-Log that his school gave him. He used to use a slide rule in science and math classes when his classmates all were using programmable calculators. He usually had answers before anyone else did. Sadly, they are just an interesting collector piece for hobby room walls now.
?
Jack ? KD4IZ
?
From: Clint Bradford <[email protected]>
Sent: Sunday, May 15, 2022 14:39
To: [email protected]
Cc: [email protected]; AMSAT BB <[email protected]>
Subject: Re: [AMSAT-BB] Slide Rules?
George - is a a fold-up slide rule? A movie prop??
?
Clint
?
?
On 5/14/2022 23:58, George Henry wrote:
My son-in-law has a fully functional SIX FOOT slide rule...
George, KA3HSW?
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