Thank you, Bob, for your video. For those who are unaware, the LogLog (LL) scales for the slide rule were invented by Peter Mark Roget in 1815. He was a British medical doctor, a Fellow of the Royal Society and the author of "Roget's Thesaurus" published on April 29, 1852.

@sliderulesandmathematics9232

Ай бұрын

Indeed he did and indeed he was. Very interesting fellow.

Dear Sir, I am elated to have found your channel. As i am a young bloke, not even 60, i haven't had the pleasure of learning how to use slide rules. But i inherited a handful of them, and me father only taught me the basic operations. Now i have to see some 2 yo videos of yours. Thanks! Cheers from Brazil!

@sliderulesandmathematics9232

Ай бұрын

Welcome aboard!

Fountain pen, very classy!!!

Thanks! Looking forward to the next videos on this topic 🙂

@sliderulesandmathematics9232

Ай бұрын

You got it!

Thanks

@sliderulesandmathematics9232

Ай бұрын

Welcome

i un(globe)earthed most of my slide rules today. actually more "mechanical calculators" than just slide rules. some of the more amusing slide rule models i have are : K&E 4002-3 (engraved with the original owner's name!) AccuMath 500 in nearly mint condition K&E K-12 Prep (681892) with instruction booklet Pickett N902-T "Simplex Trig" K&E 4058 C "Beginners Slide Rule" solid wood, excellent shape, missing one cursor leaf spring K&E 4058 W bamboo, nearly mint Post VersaLog 1460

@sliderulesandmathematics9232

Ай бұрын

They are remarkable

Logarithmic scales!!!

Your manipulation of the slide rule is excellent. As far as communicating the basis for the manipulation to the student, I think it would be very helpful if you included the appropriate basic algebraic equations. I have not watched all your videos maybe you covered this earlier. For example, logs turn multiplication into addition, but if you want to take any number to any power you are left with multiplying exponents...hence the need for the log of a log to convert that second multiplication to addition. A simple equation would really help the user to understand what is going on.

@sliderulesandmathematics9232

Ай бұрын

Great point. Obviously this is well into the series and I’ve discussed the basis several times. But that said, I’ll go over the ll scale math specifically. Thanks for the suggestion

My Aristo Studio 0968 slide rule came in yesterday. It is wonderfull to be able to replicate your video's.

@sliderulesandmathematics9232

Ай бұрын

That is a great choice. You will notice some of the scales are in different locations so you have to think of how to take advantage of that compared to the n3

@RensePosthumus

Ай бұрын

@@sliderulesandmathematics9232 Your video's rekindled the fire for sliderules. I already have some other slide rules (including the N3 and Aristo hyperbolog)

Thank you for this video. Does your six foot slide rule have LL scales?

@sliderulesandmathematics9232

Ай бұрын

Yes it does! It is a Pickett N-500