The slide rule is operated by rotating the large disc by the edges. The first side displays radii of destruction of various structures and vehicles. The other side allows to calculate the size and magnitude of nuclear fallout. I'm not sure how to use the smaller slide rule in the centre. It would be great if someone could share some more info about this device.
...I basically stole this. $17.50 (Canadian).
I don't actually use my slide rules at work, but I may someday as soon as I get good. I'm practicing at home on a K&E 4081-3 and a Post 1460 Versalog. This is my 20in. K&E 68 1200 I brought to my office for a photo.
I'm sure this is off topic, but the closest I can think of is a slide rule and I'm sure some of you have adjacent interests in the world of flat mechanical computing devices or mechanisms.
like a linear or circular slide rule where at least 3 portions move and moving one moves another at a different rate. I'm thinking a simple 2d device, maybe with a gear, maybe a non-circular gear, maybe a couple of internal gears... but much simpler than something like a watch...
Are any of you aware of such a device? any slide rules seemingly fit this description?
( and not to be obtuse, I've dreamt of having something similar be part of a custom board game to do something like supply and demand based price generation or whatever... inspired also by the game Tzolkʼin: The Mayan Calendar )
My collection of slide rules. The first overall picture was taken before the sixth one arrived, and I didn't take an update shot.
- First and foremost, of course the famed and popular Faber Castell 2/83N. Came with the instructional manual and plastic ruler. It does smell a little, which I can't get rid of so far. The middle portion is also a bit difficult to move around, might need to loosen it up.
- Aristo Multilog Nr. 970. Missing one of its legs and the lid. I bought this off Scott's Market (Bogyoke Aung San Market) back in Yangon. I have to do my best to look uninterested.
- Sun Hemmi Japan No. P261. Bought this in Singapore at a local online marketplace. Think it was their dad's or their grandparents'.
- A slide rule from Soviet Union. Soviet-LSLO 250-10P 5161-72, I believe. Year of manufacturing is 1976, at least from what the ruler says. Slide Rule Museum's website has a 1979 version.
- Graphoplex (NOT Raphoplex, as I mistook it). Graphoplex 640 System Electric Log Log, more precisely.
- Staedtler Mars 544A. Missing its cursor, bought without a case or anything. Interestingly, this was sold at an electronics and engineering shop... in the early 2000s. My first ever slide rule, and it showed. I didn't know what it was, and I wish my kid-self took care of it better.
Hi everyone! I recently joined this subreddit because I need some help finding a slide rule. I have a large group of friends going on an international trip (I live in the U.S.A.) and want to gift them a slide rule similar to the one pictured (in the comments) because they won’t have consistent phone access to look up conversions, and this would just be simpler. (Yes, U.S. schools should just teach what the rest of the world uses, but that’s a different conversation.) I’m very busy the next few days and would like to include it in a gift I’m giving them on Wednesday, so I don’t have time to design my own printable version. Does anyone know of one I can order online? Or a simple way to create a printable version? Basically this is the exact slide rule I’m looking for, or any similar one with Fahrenheit to Celsius and metric to U.S. Customary conversions.
Hi everyone! I made a post a few days ago about my first ever slide rule I found buried in London's Portobello Road Market. That post got way more love than I ever expected, along with a lot of asks for more pictures/details.
Reddit, being reddit, is refusing to let me update the first post, so I hope this effective repost will be forgiven!
The original post is: https://www.reddit.com/r/Sliderules/s/qBksdOWV6h
P.s. since then I decided to use my eyes and found a an ID number on the top left corner: No. 411090. Removing the slide shows it's a P.I.C. 121.
Searching those details reveal rules on the net that are similar to mine, though most are still different. The one exact match i did find was the P.I.C. No. 121 Electro on the slide rule museum site.
Any help, information would all be valued and cherished!
