A math-magic article I wrote for the German magazine Zeit Wissen: with the 13 triangular and square pieces (fig. 1) it is possible to form two large squares shown in fig. 2. Though the second large square has an extra piece the dimensions of the squares seem to be the same! Can you explain why this is possible?
In 1997, I remixed the Leonardo da Vinci’s famous painting Mona Lisa into 142 perfectly spaced color beads placed at the intersections of an imaginary two-dimensional triangular network. Close up, the picture of the set of beads makes no sense, but if you see it from a distance you will perceive (or at least ‘guess’?) the portrait of Mona Lisa, the most famous Leonardo Da Vinci’s painting.
Convex / Concave, it all depends on your point of view!
Although the plates are the same, in the second picture, the indents of the egg plate look more like convex domes rather than concave indents.
My name’s anagram (by Dario Uri): Gianni Sarcone → Insegno Arcani (Italian for “I reveal / teach mysteries”)
“Deep Blue”, the yellowish rays you see in this picture are a construct of your brain. My op art work is available as prints from Saatchi Art gallery.
Do the light gray triangular shapes in the diagram below have the same hue and brightness?Continue Reading
This is one of my oldest illusions I created in the 90s. In the picture you may see ghostlike dark radial beams. This illusion is a variant of the Herman’s scintillating grid illusion. I designed this illusion just by turning 45 degrees the Herman grid and then by applying a polar transformation.Continue Reading
Salvador Dalí : Sept corps nus et un crâne, 1951 (Human skull consisting of seven naked women).Continue Reading
Look at the colored rings from a distance. Then decide which ones have YELLOW inner circles, and which ones have BLUE inner circles.