Talk:Oscar Reutersvärd

Was Escher inspired by Reutersvärd?
I found the following statement:


 * One of his better known works is the "impossible staircase", which was rediscovered and published by M.C. Escher and Roger Penrose in 1958. They had not known of Reutersvard's previous work.

Does anyone know of a "reliable source" supporting the claim that Escher was inspired by Reutersvärd? Lambiam 02:21, 5 March 2006 (UTC)

Why the Penrose Triangle?
Is there a reason why the article uses the Penrose Triangle, when it's about Reutersvärd? Wouldn't this image be a better choice? It's the first "impossible figure" that Reutersvärd drew, and is his original version of the impossible triangle. (I have no idea if the image is in the public domain, though.) Saffran 10:20, 2 October 2007 (UTC)

Seconded! www.cs.bham.ac.uk/~axs (talk) 01:14, 30 September 2015 (UTC)

Or better yet, something like https://sis.modernamuseet.se/internal/media/dispatcher/15071/preview (from https://sis.modernamuseet.se/objects/28602/opus-1--perspective-japonaise-no-293-aa-min-forsta-omojl) which is his original Nov 1934 drawing but enlarged (and possibly redrawn?) in 1958, which he titled "Opus 1." The only downside (I can think of) to this is that because Reutersvärd died in 2002 (and Swedish copyright law is 70 years after the death of the artist), the drawing won't enter the public domain until 2072. If you put the Swedish into Google Translate it gives "My first impossible figure, constructed in November 1943, enlarged 1958." though note that the year should be 1934 because whoever typed it from the handwriting on the artwork (which says 1934) made a typo. Copyright in the US is probably different (and IMNSHO ridiculously more complicated). It may be in the public domain already or it may go into the public domain in 2053, assuming it was 'published' in 1958 and depending on whether copyright registration was renewed (assuming there was copyright registration in the first place). (There is a flowchart at https://www.sunsteinlaw.com/copyright-flowchart that tries to make this determination easier.) 66.234.88.172 (talk) 06:42, 15 August 2022 (UTC)

Query
The citation for "In 1958, he read the now classic article by Lionel and Roger Penrose on impossible objects, which included the triangle and staircase that the British father and son team had developed independently" is evidently the 1958 Penrose article itself. How can it be that that article itself refers to the fact that Reutersvärd read it after it was published? — Preceding unsigned comment added by 78.145.168.66 (talk) 17:34, 17 August 2022 (UTC)