I put in order my desk drawer and found this is what:
Then I found it in Internet - http://terni.ru/slide_rule
Alex Sokolov написал(а):
Adorable!
But the Japanese minimalism:
Самая маленькая логарифмическая линейка
В начале 60-х годов японец Тадао Икегао изготовил логарифмическую линейку длиной 22 мм. Несмотря на микроскопические размеры, на ней можно производить все математические расчеты, которые только возможны на логарифмических линейках.
The smallest slide rule
In the early 60s the Japanese Tadao Ikegao made the slide rule length of 22 mm. Despite the tiny size, it is possible to produce all the mathematical calculations that are only possible on the slide rule.
Philip Oakley написал(а):
The 'Japanese' slide rule looks very much like the http://www.scientificamerican.com/media/pdf/Slide_rule.pdf 'make it yourself' paper slide rule. It's quite nice with a moderate weight paper. Made a few my self very recently.
Not only a paper slide rule - a paper computer too
See please Компьютер из бумаги? ЛЕГКО!!!!! - YouTube
Or this origami:
Hello everyone!
I, in my drawer ... I have a Nestler, HP55, HP41, HP 65 SX, ... out of a drawer ... HP Vectra 486 33T ... ect (1024x646).jpg)
One scene from the Soviet comedy film "Самогонщики - Bootleggers"
One character ("Балбес") calculates with a slide rule how many sugar from the bag add in need, to get a good самогон (hand made vodka).
See pls Самогонщики HD1080p - YouTube. This film is without words. Only fine music...
A slide rule in one more soviet movie "Once Again About Love" - about Love to... a slide rule 
I just figured out what this is:
I've had it for years, but never knew what it was. Just some "weird ruler". It's called a Gunter's rule, or Gunter's scale. It was a precursor to the slide rule. There's more about how it was used here:
http://www.nzeldes.com/HOC/Gunter.htm
There are some other examples here:
http://www.sliderulemuseum.com/Rarities.htm
Based on the examples shown, mine is from the early 1800's. Note in particular the style of the numbering, and the fact that the 12 inch scale on the top of side 1 runs from right to left, rather than left to right.
There's a higher resolution image in the attachment.
Yesterday I visited a laundry. A receptionist (one old women) weighed my linen on some balances (one picture from Internet):
and calculated the price with this "computer":
You can see the result on the "screen" (It is my photo) - 531 rubles and 48 kopeks (1$=80 Ruble).
At home I have checked it (Mathcad Prime 3.1).
I was surprised at first, but then I thought that all of this (and the phone) will work after... a nuclear war
From Wikipedia
In Russia, the slide rule called a logarithmic rule. But we can not calculate with this device ... logarithm or 10^x. Or I'm wrong?
One solution of one student
It is for Mathcad Mad House - Маткадовский дурдом
Lawrence Lederer написал(а):
No sure if the slide rule split his head in two or he is making it part of his brain.
It is a double slide rule - I never seen someone!
I was able to solve differential equations on such device (Robotron?) in my student years. If you divide by zero, the carriage of this device goes from left to right - to the stop and there chirped until it laboratory assistant stopped.
