Lmst

Dad showed me his slide rule today. This thing is probably 50-60 years old. It's German, a brand called Aristo-Elektro.

I'm in love with the fonts and colours. Few things are as classy lately.

#sliderule

🎉 Because who doesn't want to feel like a 1950s scientist while cooking lasagna? 🤓 Apparently, the pinnacle of culinary innovation is ditching your calculator for a kitchen slide rule! 🔢 Because, you know, math is more fun when it's unnecessarily complicated. 👩‍🔬 Bon appétit, nerds! 🍽️
https://entropicthoughts.com/kitchen-slide-rule #1950sCooking #KitchenInnovation #CulinaryMath #SlideRule #NerdyCuisine #HackerNews #ngated

81 year old sailor on next boat started talking slide rulers
So I pulled mine and and we raced calculations

#math #sliderule #sliderules #calculation #oldschool

Requires no batteries...

#SlideRule #Calculator

Happy Thanksgiving, #Fediverse!

#Linux
#StarTrek
#FOSS
#Fedora
#KDE
#SlideRule
#SlideRules
#AmIsraelChai
#Thanksgiving

@xaseiresh @FreeCAD

Those look fantastic! As a fan and collector of slide rules, I am interested to know more!

#SlideRules #SlideRule

honestly, tis just too much! all this pron!! this morning i found that ripper #sliderule pron page, & now this late arvo i'm ogling & drooling over a seemingly endless array of gratuitous #teamugs pron. tis almost too much for an over-stimulated innocent dropbear to, um... bear?

more #sliderule pron, for other lovers of the best ever human invention

https://amenzwa.github.io/stem/ComputingHistory/HowSlideRulesWork/

So what does a mathsphobe do with their Saturday morning?

She cleans and lubricates her slide rules, obviously!

#contradictory #mathsphobe #ClassicEngineering #SlideRule #Pickett #VintageTech

A detailed photograph of a vintage slide rule, prominently displayed against a textured black fabric background. The slide rule is elongated and constructed from yellow coated material with finely etched scales and numerical/symbolic markings in black and red. Toward the left side of the image, the device is equipped with a transparent sliding cursor made of clear plastic, framed by metallic ends secured with screws. To the upper portion of the photo rests a brown, worn leather carrying case with visible scuffs and age marks, its flap closed. The case's classic style and the instrument’s elementary engineering suggest both are mid-20th century artifacts. Soft lighting highlights the instrument’s details, making the scales and numbers readable while subtly accentuating the wear and patina on the leather case.

A richly detailed close-up photograph showing a vintage yellow slide rule resting on an open brown leather protective case atop a black cloth surface. The slide rule’s intricate logarithmic and mathematical scales are clearly etched on its surface, with a transparent central cursor framed by spring-loaded plastic edges for precise alignment. The instrument’s right end is extended, revealing additional scales. The leather case is open, displaying its fitted, pocketed interior designed to hold the slide rule securely. The leather bears signs of prolonged use, such as creases, minor scratches, and softened edges, conveying historical authenticity. The black backdrop emphasizes the color contrast between the yellow slide rule and brown case, while soft, diffuse lighting ensures all markings and textures are crisp and visible, evoking a sense of nostalgia and respect for classic engineering tools.

@thomasadam

Not too many folks still use slide rules. A few, but fewer all the time.

It's a shame, because they give you an insight about math and relationships between values that you just don't get from a calculator or a digital computer.

I keep one handy for quick calculations, but I'm not an engineer.

Have a look at The Oughtred Society, too: https://www.oughtred.org/index.shtml

...and their publication, The Journal of the Oughtred Society: https://www.oughtred.org/journal.shtml

#SlideRules #SlideRule

#sliderule

It's another post about #rulers -- well, of sorts.

I own a slide rule -- likely given to me by my dad. These would have been used a lot during schools and engineering bods alike. Until such time that the pocket calculator came along.

I ought to learn how to use it.

I own a copy of "The Slide Rule", by Burns Snodgrass, which is either a name, or an instruction, I'm not sure which...

Whilst I was rooting around, I came across these two gems:

The United Kingdom Slide Rule Circle: https://www.uksrc.org.uk

The International Sliderule Museum: https://www.sliderulemuseum.com

I really hope they're still being used somewhere, by some people.

Considering there's so many blooming different ones (some circular, for instance), it would be a shame these things were consigned to history.

Resuscitated #Seiko #Chronograph #FlightMaster #watch with new battery! Might learn to fly to use the #sliderule for fuel needs. 🛩️

#wristwatch #aviator

Picture of wristwatch with four sub dials and silver and gold band

Today's bike ride needed a little calculation. 60 minutes at 10.9 mph, plus 5 more minutes when my bike computer app was off, equals 11.8 miles. #SlideRule #FlightComputer

Used my #SlideRule today.

Excited to learn how to use this retro calculator!

Saw this on eBay and couldn't resist a little bid. Anyway I won, and this turned up today.

Always did like logarithms...

#retro
#sliderule

I am holding a slide rule which is about 12 inches long. Lots of scales on the top, middle and bottom sections. The middle section can slide left and right and the is a clear bit with vertical lines that slides over all 3 sections.

Picked up an ASA E6-B flight computer circular #SlideRule at a yard sale. It's the same kind Spock uses on TOS, though his is aluminum; this one is paper. I have an aluminum one from another company, which I occasionally use to calculate my #ebike daily ride mileage when my GPS app fails. This one is more legible, and lighter weight.

A circular slide rule made of paper in a clear plastic case.

In our high school math textbook, there were formulae for converting sums of trigonometric functions to products. We were tested of their knowledge. I hated them because there was no imaginable practical use for them.
One time, my late grandmother who was a chemical engineer, found an artifact of her young days in a cabinet — a slide rule.
When I came to visit her, she showed me that thing and offered to show me how it was used. "Look, it's trivial to multiply, but to add... let me show you, there's a trick for that".
Then the true purpose of the useless formulae clicked. They were there to help people make their lives simpler in the slide rule era. And then, no one thought to remove them from the textbook and it was reprinted with those out-of-context artifacts still in.

#math #trigonometry #sliderule

@tomwsmf I laid out my #sliderule for the #boardgame Acquire with a #LibreOffice spreadsheet.