got out the Large Print slide rule for Sunday morning trigonometry
normally ill use the 6" pocket model, but I was trying to see the hairlines for .2° and it's more squinty than I feel like
Replying to @bweller@mstdn.social
Pickett N-300-ES and N-500-ES for anyone keeping score at home
Replying to @bweller@mstdn.social
dont ask why i decided to solve spherical triangles with a slide rule
if you keep asking ill get out the book of trig tables and make you do it that way instead
Replying to @bweller@mstdn.social
as luck has it, the book on spherical trig from 1907 has a lucid explanation of exactly what I need
theres a reason i buy these old ass books
Replying to @bweller@mstdn.social
thankfully Frank took good care of his book when he was studying for his degree in 1926
thats what the inscription says, anyhow 😊
Replying to @bweller@mstdn.social
ALT