Unwinding an Unusual Slide Rule - If the Otis King slide rule in [Chris Staecker’s] latest video looks a bit familia... - https://hackaday.com/2025/05/12/unwinding-an-unusual-slide-rule/ #retrocomputing #sliderule #otisking
The #SlideRule, like the #LogBook, is probably as useless as the #PocketCalculator, today. But I am obsessed with those relics, even in the face of modern 64-bit and 128-bit CPUs.
I hope, in a couple of decades when I'm six-feet-under, people still appreciate those CPUs as we do the slide rule.
Showing my age I know but here is my first ever ‘scientific calculator’. With no batteries to run out, the slide rule was the perfect solution to carrying out engineering and scientific calculations. #SlideRule #calculator
Mechanical Calculator Finds Derivitives - We like mechanical calculators like slide rules, but we have to admit that we had ... - https://hackaday.com/2025/01/06/mechanical-calculator-finds-derivitives/ #derivimeter #derivitive #mischacks #sliderule #calculus
So it’s a Circular #SlideRule ! Outstanding!
#CircularSlideRule
After looking for a long time, I finally found this #Sliderule, which belonged to my late father. Some of you will know that these #devices were used, before the advent of digital #Calculators, to perform #arithmetic operations such as #multiplication and #division to about three significant figures, by #scientists and #engineers.
#Mathematics #Computation (1/2)
Found in a thrift store. Hard to believe that people used to use this actual thing to do actual calculations to fly actual planes. #SlideRule #AnalogComputer #aviation
:-)
Our fellow Mastodonian
@AmenZwa has written a lovely historical article on all things sliderule:
I was trying to typeset the 4 chapters K&E 4083 #sliderule supplement manual in plain #TeX for better readability but ended up adding 1/3 more materials, and half of the addendum is now my original writing.
The Genius of Slide Rule Precision - Most people have heard of or seen slide rules, with older generations likely havin... - https://hackaday.com/2024/05/29/the-genius-of-slide-rule-precision/ #sliderule #science
@mattblaze Nathan Zeldes’ site is a treasure trove! #sliderule #sliderules
Best #pocket #calculator I own. Needs no batteries. #sliderule #analog #rechenschieber #rechenstab #taschenrechner
Joost Bürgi and Logarithms - Logarithms are a common idea today, even though we don’t use them as often as we u... - https://hackaday.com/2024/02/27/joost-burgi-and-logarithms/ #retrocomputing #logarithms #sliderule
Calculation Before We Went Digital - We have to like [Nicola Marras]. First, he wrote a great mini-book about analog co... - https://hackaday.com/2023/12/17/calculation-before-we-went-digital/ #retrocomputing #calculator #sliderule
Pocket Calculator isn’t a Brain or Magic - If you predate the pocket calculator, you may remember slide rules. But slide rule... - https://hackaday.com/2023/10/20/pocket-calculator-isnt-a-brain-or-magic/ #retrocomputing #calculator #sliderule #teardown
Just as an introductory post, here are a few interesting slide rules from my collection... #sliderule #sliderules
@PointyEndUp Maybe you also need to scale it up? 
(I'll have to see if I have photos of my Pickett slide rules, too. Too lazy to open the boxes. 
)
Best #pocket #calculator I own. Needs no batteries. #sliderule #analog #rechenschieber #rechenstab #taschenrechner
Close enough, I think.
The angles don't quite match. But the book design isn't true, anyway, as the scales are not like the original slide rules. Also my StudioLog wasn't closed completely.
