Practical Slide Rule 1/5: Basics

A short series where I show how to use a slide rule by solving practical problems (mostly). Playlist: • Practical Slide Rule
For a more theoretical introduction, see my "Basic slide rule theory and use" video series: • Basic slide rule theor...
All my slide rule videos (including advanced topics): • All Slide Rule Videos

[@willm6770]

This video was very enjoyable

[@warronfrench8163]

Professor Herning, this was great! I was able to follow along mentally with what you were doing. Thanks for sharing. By the way, what is the purpose of the L CI, C, K and other scales?

[@ProfessorHerning]

Warron, I see you saw my other comment. Here is a short summary of basic scale uses:
C/D: multiplication, division, proportions: the "main scales"
A/B: squares and square roots (also sometimes used similarly to C/D)
K: cubes and cube roots
CI: easier multiplication, combined operations (double multiplication, double division), easier reciprocals.
L: logarithms and exponentials with base 10. Used for arbitrary exponents and logs unless LL scales are available.
S/T: trigonometry (solution of [usually right] triangles. ST extends both S and T to small angles.)

[@vigwelding926]

For those of you that don't have an actual slide rule to follow along. Here is a link for an online slide rule.
www.antiquark.com/sliderule/sim/n909es/virtual-n909-es.html

[@riadriddick1680]

J'ai 140 regles a calcul faber castell tout neuf made in allemagne en 1965.N°57/88 N°57/89 Avendre