# Category In detail

Phrases of Lichtenberg Georg Christoph Lichtenberg (1742-1799) was one of the main representatives of the German illustration. Scientist and writer, he was a top-ranking moralist and also a master of irony. Here you can find the best phrases of Lichtenberg to enjoy his sharp wit.

Look at these two faces that we present to you. Which of them corresponds to a man and which to a woman? Solution Most of us answer that the woman corresponds to the face that appears on the left and the man's face is what we see on the right. However, both sides are the same. A simple change in the contrast of the image makes us perceive it as a man or woman even when it is the same face.
In this image we see five birds flying, or are they more? Solution Actually if you look you can see up to 7 birds. The back of the wings of the large bird delimit the silhouette of two more birds.
What do you see in the drawing, two dragons fighting or a woman's face? Solution It is an optical effect of the drawing, the silhouette of the dragons forms a woman's face in the central area.
Look at this picture, can you see the face of the bearded man? What about the man on horseback who looks at the person on the ground? Solution It is an image with an optical effect that represents both.
In this image, only our experience allows us to discover the figure that is hidden behind these spots. What do you see? Solution They are a rider and his horse moving to the left.
Can you see how many people hide in this beautiful frog? Solution There are 5 in total.
Can you see where the devil hides? Solution In this beautiful drawing we can see an illustration of a street where the entrance to a variety theater is located, but the farther we go we discover the devil's face smiling in front of him.
Look at the two figures. Do you think there is one bigger than the other? Solution Apparently the one at the bottom seems larger than the other, but in reality the two are exactly the same.
Be careful where you step, do not bite the shark! Quiet solution, it is only a drawing made with the anamorphosis technique that seems to really come out of the ground.
In this drawing we see two men transporting some woods with an owl on top, but the columns are somewhat strange, don't you think? Solution The top of the wall is in a straight line, but the three pillars are standing in a three different planes.
Look carefully at this window, is it open inward or outward? Solution It is an optical effect, both are possible.
In this photo there is the reflection of a church in what looks like a small pond, but ... is it possible? Solution No, it's really another illusion of 3D drawing
It is this image you can see the discovery of archaeological remains, but are they really? Solution It is actually another optical illusion of 3D drawing.
In the middle of the street there is a strange pond, which also has a sailboat sailing ... Solution It is a 3D effect drawing with the anamorphosis technique of the wonderful artist Julian Beeber.
What is hidden between the sheets? Solution You can see the body of a woman stretched upside down and with her head to the left.
Look at this drawing, the mountain looks like a face that is crying. Solution is a drawing by Joe Santana.
In the image we see a child climbing a high stick, hopefully it does not fall ... Solution Actually the child is on the ground. It's another 3D effect drawing with Julian Beeber's anamorphosis technique.
What a snail! ... Solution To draw the parts of the snail on the bright bench, a paper had to be cut and glued in place on the top and on the side of the bench. Further back, a steel column standing in the street was incorporated to make one of the snail's horns. Performed by Julian Beeber.
Nice drawing of some Greek columns, do you notice anything weird? Solution Perspective is impossible, it is not known which columns are below or above.
Look at this picture, it seems that the boy is painting himself ... Solution It is an optical effect between photography and drawing.