MagiDeal Plastic Civil Aviation Plane Ruler Aeronautical Flight Slide Ruler Flight Planing Scale Rulers

hello youtube today I thought I'd share with you the basic operation of a slide rule slide wheels were used up until 1972 when the first pocket scientific calculator the hp-35 was released slide rules are capable of doing multiplication division squaring and cubing as well as square roots and cube roots at their most basic level but some slide rules in fact most can also do trig nemetrix and natural logs regular logs and stuff like this in fact slide rules work on the properties of logs if you add two logs and then take the antilog you get the multiplication of two numbers hence as you can see if we're looking at the C and D scales the space between 1 & 2 is large and it gets progressively smaller between each set of two numbers by a logarithmic scale and what a slide rule does when it does multiplication is it adds the logarithm of two numbers and the respective logarithms of two numbe