‘Mysterious Disk Calculator’ thread. How do I find it?

‘Mysterious Disk Calculator’ thread. How do I find it?

This topic has 5 replies, 4 voices, and was last updated 4 November 2024 at 20:26 by noel shelley.

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3 November 2024 at 21:54 #762790
Ian P
Participant
@ianp
A year or so ago, there was a long thread about trying to establish the purpose of a mystery circular Calculator, since I cannot recall any specific term to search for I wonder if anyone who remembers it could post a link please.

I’m not sure whether during the course of the thread, the existence of a Dutch Slide Rule website that is showing pictures of mystery calculators and maybe a path to solving the riddle of the one might start there.

Site is https://www.rekeninstrumenten.nl/Engels/mystery.htm

Ian P
Advert

4 November 2024 at 00:49 #762796
Michael Gilligan
Participant
@michaelgilligan61133
Here is the ‘revival’ Ian:

https://www.model-engineer.co.uk/forums/topic/that-strange-calculator-again/

MichaelG.

.
- Edit: __ I put nigel graham 2 circular into the Search box, and then trawled down the list
4 November 2024 at 11:02 #762831
peak4
Participant
@peak4
I believe this is the original thread, but it takes some finding
Forum search is basically broken for anything other than the first page of any search, but if you can find a broken link somewhere to the old forum, then archive.org is now back on-line following their recent problems.
That led me to here eventually

https://web.archive.org/web/20210921133655/https://www.model-engineer.co.uk/forums/postings.asp?th=171761

Which seems to translate to here

WHAT IS IT ?

Bill
4 November 2024 at 11:14 #762837
peak4
Participant
@peak4
Further to the above, adding InVid fake news debunker as a browser extension, allows a drop down menu when you right click a picture, showing a variety of reverse image searches

InVID Verification Plugin

Which, amongst other places leads you to an old Reddit post

What is this rotary calculator-looking thing from 1908?
byu/terrible_smell inwhatisthisthing

Bill
4 November 2024 at 12:00 #762839
Ian P
Participant
@ianp
Thanks Bill and Michael. I will read through all the posts because I had a feeling that someone may have already suggested contacting the Dutch slide rule enthusiasts group. I have an slide rule that they helped me identify.

This is their website https://www.rekeninstrumenten.nl/Engels/index.htm

Ian P
4 November 2024 at 20:26 #762945
noel shelley
Participant
@noelshelley55608
I put it on here about 3.5 years ago, my how time flies ! Noel.
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