Support Vsauce3 and get 2 months of Skillshare courses for FREE: http://skl.sh/vsauce33 Subscribe to DONG: null Twitter: http://twitter.com/jakerawr Instagram: http://instagr.am/jakerawr Facebook: http://facebook.com/vsauce3 Impossible Objects for Printing: Impossible Triangle: https://www.thingiverse.com/thing:547580 Depth Triangle: https://www.thingiverse.com/thing:6513 Penrose Steps: https://www.thingiverse.com/thing:210267 Impossible Cube: https://www.thingiverse.com/thing:1702165 Belvedere: https://www.wikiart.org/en/m-c-escher/belvedere Ascending & Descending: https://www.wikiart.org/en/m-c-escher/ascending-descending Principles of Design: https://www.smashingmagazine.com/2014/03/design-principles-visual-perception-and-the-principles-of-gestalt/ Visual Curiosities: https://plus.maths.org/content/visual-curiosities-and-mathematical-paradoxes Depth and Perspective: http://mathstat.slu.edu/escher/index.php/Depth_and_Perspective Books I read for this: Principles of Gestalt Psychology: https://www.amazon.com/Principles-Gestalt-Psychology-Kurt-Koffka/dp/8857523934 Eye and Brain: https://www.amazon.com/Eye-Brain-Psychology-Princeton-Science/dp/0691165165 Oxford Compendium of Visual Illusions: https://www.amazon.com/Oxford-Compendium-Visual-Illusions/dp/019979460X Penrose Article: https://onlinelibrary.wiley.com/doi/abs/10.1111/j.2044-8295.1958.tb00634.x *CREDITS* Written, directed, edited and hosted by Jake Roper VFX and Cinematography by Eric Langlay (null) **VSAUCE** Vsauce1: null Vsauce2: null Vsauce3: null DONG: null