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

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

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

“It seems to me that every time those scientific laddies get busy with their slide rules life becomes more complicated. What was wrong with things the way they were?” —Robert Heinlein, Double Star, 1956

Predicting atomic rockets in the future, but not the electronic calculator or pocket computers.

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

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

@ompaul haven't found it yet but dug up old phone memory card with 2 pics of #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

Charity shop swag: a micrometer (with an inch-based scale), the Aristo MultiLog 970 (accept no substitutes) and Bletchley Park Top Trumps. Excellent. #retrocomputing #sliderule #engineering #computing

Just as an introductory post, here are a few interesting slide rules from my collection... #sliderule #sliderules

it took about a month for this to arrive and it's amazing

an aristo 0969 StudioLog #SlideRule in excellent condition

what caught me off guard was the size of it. this thing is a beast

I don't love plastic rules generally but there's a lot of precision here, and it has the perfect scale set: A, B, C, D, K, BI, CI, DI, folded and inverses, trig, LL0 through 3 and LL00 through 3, and a P!

Best #pocket #calculator I own. Needs no batteries. #sliderule #analog #rechenschieber #rechenstab #taschenrechner

Best #pocket #calculator I own. Needs no batteries. #sliderule #analog #rechenschieber #rechenstab #taschenrechner