Talk:Spirograph

message: I have an early 20th C. device (it shows up in a Sears catalog of 1908) called "The Marvelous Wondergraph". It has no gears but uses a rotating disc for the paper and a reciprocating arm with adjustable pivots to hold a dip pen. When cranked it produces designs just like a Spirograph. --Saxophobia 13:39, 30 June 2006 (UTC)
replies: text: Thanks for that information. I looked it up and included sourced information in the article. Interesting. SilkTork ✔Tea time 15:56, 17 July 2011 (UTC)
replies: text: I think you mean the Dumont network. 2601:545:8201:6290:D81D:AC37:9BB1:FDF7 (talk) 13:52, 25 February 2024 (UTC)
thread_title:  Pre-Spirograph drawing toy 

message: On the Polish version it is said that spirograph was first invented and patented by Bruno Abakanowicz, on English and Polish versions of this man entries it is confirmed, but on English version of spirograph page he is not mentioned. What is the truth?  —Preceding unsigned comment added by 87.206.105.125 (talk) 19:23, 8 April 2011 (UTC)
replies: text: It appears that Abakanowicz did make an instrument he called a spirograph which was used for measuring curves. He did not, though, make the toy. I have done some research and included sourced material in the article. SilkTork ✔Tea time 15:56, 17 July 2011 (UTC)
thread_title:  Inventor ? 

message: The figure in the math basics section looks wrong. r is the radius of a small circle, but in the figure r is defined as the distance from the center of a large circle to the center of a small circle. I don't have a drawing software to fix. Can anybody fix that mistake?  — Preceding unsigned comment added by 67.188.234.114 (talk) 23:27, 9 October 2011 (UTC)
thread_title:  Wrong figure? 

message: The image is marked "resonance cacade" - what is this? Oli Filth(talk|contribs) 15:54, 30 April 2012 (UTC)
replies: text: Spirograph images are hypotrochoids, with curved "sides". Polytopes (like the runcinated 6-simplexes) though have straight line segments. Andy Dingley (talk) 15:51, 27 December 2016 (UTC)
replies: text:  I did overlook that difference. Thanks. My parents bought me a Spirograph round 1972. 83.85.143.141 (talk) 16:11, 27 December 2016 (UTC)
thread_title:  Resonance cascade? 

message: The text states the Spirograph was developed between 1862-1864 and that the inventor exhibited it at a 1965 toy fair. I’m guessing the development was actually between 1962-1964?--jqubed (Talk | Contributions) 02:40, 17 January 2020 (UTC)
thread_title:  Date Inconsistency? 

message: Here is a link to the 1823 book by Jopling. There are numerous websites offering the PDF "free", but it isn't available on Internet archive. I prefer to avoid Google, but I couldn't find another source which allowed some viewing. 
https://books.google.ca/books?id=fWUUAAAAQAAJ&pg=PA1&source=gbs_toc_r&cad=3#v=onepage&q&f=false
The Septenary system of generating curves by continued motion
By Joseph Jopling Humphrey Tribble (talk) 07:02, 3 January 2022 (UTC)
thread_title:  Joseph Jopling's prior claim (1823) 

message: Official Website link is https://www.kahootztoys.com/spirograph-home.html But this website seems to have gone down sometime during 2021. I checked archive org and confirmed that 2 snapshots in 2021 April, are of a temporary page which redirects to playmonster .com Since this is just an online store rather than a "home page for spirograph", I don't want to replace it with the new website's link. If anyone does not have a better source link in the lines of home page or some thing similar, I will remove this external link in the coming weeks. --Guyver (talk) 09:09, 11 August 2022 (UTC)
thread_title:  Official Website is down