Are they moving? Posted on 2020/12/02 by Carl Robitaille Reply Are they moving? https://t.co/39cPlFdCZt— Marco Bravo (@marcobravoram) November 28, 2020
Concentric circles appear to be spirals Posted on 2020/12/02 by Carl Robitaille Reply Concentric circles appear to be spirals. pic.twitter.com/X1BcGblS0g— Akiyoshi Kitaoka (@AkiyoshiKitaoka) November 24, 2020
The camouflaged cube Posted on 2020/10/13 by Carl Robitaille Reply Another v cool illusion. The camouflaged cube https://t.co/5OqO9hmAfd— Alex Bellos (@alexbellos) October 6, 2020
A perfectly square grid Posted on 2020/06/30 by Carl Robitaille Reply A perfectly square grid(inspired by @DrGBuckingham) pic.twitter.com/JnJTVTHu8D— 〈 Berger | Dillon 〉 (@InertialObservr) June 26, 2020
A demo of the foot-step illusion Posted on 2020/06/30 by Carl Robitaille Reply A demo of the foot-step illusion (Anstis) pic.twitter.com/HhJdxcNvRR— Akiyoshi Kitaoka (@AkiyoshiKitaoka) August 31, 2017
Map of the Mediterranean but tilted by 90 degrees Posted on 2020/06/09 by Carl Robitaille Reply Just a map of the Mediterranean but tilted by 90 degrees. It somehow makes the Mediterranean Sea look even smaller. So confusing to look at! Source: https://t.co/vMQlQXzQoW pic.twitter.com/fIPR7kkok3— Simon Kuestenmacher (@simongerman600) October 27, 2019
Artist Yurii Perepadia is a graphic designer realizing illusory motion images Posted on 2020/05/27 by Carl Robitaille Reply Artist Yurii Perepadia (@yurrey_p) is a graphic designer realizing illusory motion images like this one. Learn more about illusory motion: https://t.co/NYirvk707A [Visit Yurii's IG account for more: https://t.co/URvbqyV4x7] pic.twitter.com/p8YgFyCWvV— Massimo (@Rainmaker1973) May 27, 2020
In this image there are 16 circles Posted on 2020/04/17 by Carl Robitaille Reply In this image there are 16 circles. Don't you find them? Look again carefully and discover the 'coffer illusion' https://t.co/FTkIYhvbqp pic.twitter.com/2exEEWexPb— Massimo (@Rainmaker1973) April 17, 2020
John H Conway performing the knot trick Posted on 2020/04/12 by Carl Robitaille Reply Here is a better-quality video clip of John H Conway performing the knot trick that @wtgowers mentioned.It’s impressively done. Even watching it on a loop, I can’t see the sleight of hand. pic.twitter.com/8WuBWZ1PKy— .robin. (@robinhouston) April 12, 2020
Impossible Ring Posted on 2020/03/27 by Carl Robitaille Reply Impossible Ring a little impossible doodlehttps://t.co/to7IWWsmp2 pic.twitter.com/E7fR1y0VGk— Luna (@lunasorcery) March 26, 2020