Trammell Hudson19h ago
Slide rule fans: have you ever seen one with two cursors and a second sliding rule? This odd sliderule illustration was on the cover of Astounding Science Fiction, May 1951 https://archive.org/details/Astounding_v47n03_1951-05_Sam_Hall/mode/2up
Show threadGina W6h ago
@th I used to have a few similar ones for calculating feeds and speeds rather than general math. They were intriguing but in practice I mostly used a computer.
Show threadTrammell Hudson
@ginabythebay were they linear or circular rules? I've seen round ones with three wheels for specialized computation like IBU.
9:31amWeb
Show threadGina W3h ago
@th I had some round ones and some linear ones. I am kind of fascinated by sliderules and picked up a selection from ebay.