Gianni A. Sarconeさんのイラストまとめ

Mon livre "Pliages, Découpages et Magie" pour ceux qui aiment les maths autrement! 🙂 Ce manuel de prestidigéométrie est toujours d'actualité et disponible chez: https://t.co/FxBx0ebyU4
Un joli cadeau pour les génies en herbe...

Unstair
A lucid dream of a distorted world: the platform and stair form an impossible continuous loop. The girl could walk and climb the stair forever and never get any higher. Available as prints from my online gallery: https://t.co/TWQ2osqnwy
#opticalillusion #surrealism

Hands around the Moon
This is a romantic figure-ground illusion involving negative spaces...
Interested in my collection of optical illusions? Feel free to contact my UK agent: https://t.co/4zznJut24x
#opticalillusion #syndication

Want some Fibonacchos?

"We are NOT in the same boat. We are in the same STORM. Some have yachts, some have canoes, and some are drowning. Just be kind and help when you can."
- Adapted quote by Damian Barr
(illustration by Barbara Kelley)

Visual Test
Have a look at these color boomerangs (arcs of circle). Which one of them is the widest and which is the thickest?
More visual tests: https://t.co/rElnF80BR5
#test #opticalillusion #visualillusion

Distorted Checkerboard
Alternating cross patterns make the columns of the checkerboard diverge (click to enlarge the picture to see the visual effect)
Image taken from my book "Fantastic Optical Illusions": https://t.co/TlpwIn69W0
#opticalillusion #opart

Stained Glass Illusion by G. Sarcone
The pane that looks green is actually the SAME color as the pane which looks red!

There are stairs that go up whatever direction you are facing... Illustration taken from my little children's book Eye Bogglers. Available here: https://t.co/xWP1Pul5lF
#opticalillusion #impossiblefigure #escheresque

Vogue Illusion (2003)
Cognitive figure-ground optical illusion
Do you see two or three elegant women? More from: https://t.co/qSGkgDPiZB