Davide Pesenti
 Tue, 14 Jul 2015 15:34:56 +0200 
Image/photo

Another idea that came to my mind is the one of pipes (toy pipes)
Davide Pesenti
 Tue, 14 Jul 2015 15:29:11 +0200 last edited: Thu, 16 Jul 2015 18:31:26 +0200  
Davide Pesenti
 Tue, 14 Jul 2015 12:03:53 +0200 
Penrose triangle - Wikipedia, the free encyclopedia
The Penrose triangle, also known as the Penrose tribar, is an impossible object. It was first created by the Swedish artist Oscar Reutersvärd in 1934. The psychologist Lionel Penrose and his mathematician son Roger Penrose independently devised and popularised it in the 1950s, describing it as "impossibility in its purest form". It is featured pro...


https://en.wikipedia.org/wiki/Penrose_triangle#/media/File:Penrose-dreieck.svg

https://en.wikipedia.org/wiki/Impossible_object#/media/File:Reutersv%C3%A4rd%E2%80%99s_triangle.svg

Image/photo
Davide Pesenti
 Tue, 14 Jul 2015 11:55:20 +0200 last edited: Tue, 14 Jul 2015 12:04:25 +0200