Neat! I’ve looked on amazon and eBay where I could buy a slide rule but haven’t been able to find one. One of my professors told the class that he had a teacher who would challenge any of his students to run any calculation on a handheld calculator before he could do it on a slide rule. The students could never beat him even with long complicated equations. Found that fascinating.
There's a 'Professor Herning' whose YouTube channel has both good tutorials on their use, as well as comparing many models (and the various scales they have):
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[ 3.4 ms ] story [ 22.1 ms ] thread[0]: https://news.ycombinator.com/item?id=24028351
What have on earth have you been typing in for search terms?
* https://www.ebay.ca/sch/i.html?_nkw=k%2Be+4081
* https://www.ebay.ca/sch/i.html?_nkw=k%2Be+4083
* https://www.ebay.com/sch/i.html?_nkw=aristo+slide+rule
* https://www.ebay.ca/sch/i.html?_nkw=post+versalog+ii
* https://www.ebay.ca/sch/i.html?_nkw=sun+hemmi+262
If you get one of the fancy ones with dozens of scales it may be harder to use.
* https://www.youtube.com/c/ProfessorHerning/videos