A person's perception of the surrounding world has a number of mysterious features, for example, it is no secret to anyone that artificially created optical illusions are capable of misleading any person due to their "apparent" reality.
Such effects were familiar to people in ancient times, and many priests and sorcerers skillfully used them when conducting their rituals. There are several such artifacts that attract the attention of specialists from all over the world due to their unique properties of "playing with light". $ CUT $
One such item is the well-known crystal skull found in the ancient city of the Mayan civilization on the Yucatan Peninsula. This skull was carved from a single piece of crystal using unknown technologies, which have not yet been mastered by mankind. In addition, a mysterious skull can cause strange images in people, and if you look into its eye sockets, you can see in it a complete reflection of the room in which the person is. With the right lighting, two bright beams of light emanate from the eye sockets of the skull, which no doubt looks very impressive.
Mysterious mirrors, which once terrified the inexperienced minds of people of previous centuries, are shrouded in a mystical aura. One of these mirrors belonged to Pan Tvardovsky, who was considered a sorcerer and warlock. Pan's strange mirror had mysterious properties, and people saw in it either the figure of a devil or a woman's silhouette. This subject has long caused superstitious fear, however, the development of science did not stand still, and gradually more attention was paid to optical phenomena.
It was then that they remembered about the interesting mirror of the sorcerer, and this subject was subjected to detailed study. It turned out that on the mirror surface, with the help of the finest engraving, images of that same devil and a portrait of one of the late queens were applied. The one who made this mirror knew perfectly well that with a correctly chosen distance, illumination with a candle through a smoke screen (when using, for example, a censer), the mirror was able to reproduce images applied to it.
Such experiments were carried out by the priests of Ancient Egypt, who were well aware of such "miracles", Pythagoras and Plato also knew about this, who was the first to describe the secret of light projection.
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Despite the fact that science has made a huge leap forward, some optical phenomena are still poorly understood. So, at the end of the last century, one of the employees of the scientific and technical journal Vadim Orlov took his self-portrait at a distance of three meters in front of the mirror, accidentally glancing at the scale of the optical rangefinder after the photograph, he saw that it indicated a distance of six meters. It turned out that his image in the looking glass was also at a distance of three meters!
But reflection is “not real”, and according to the principle of superposition in optics, the interaction of a light source with rays from another object (if we assume that the reflection is also “woven from light”) is impossible, and therefore this could not be! Nevertheless, a few years later, a letter from a reader with a similar case came to the editorial office. An experiment using a camera with an ultrasonic locator capable of determining the time of reflection of sound from a photographed object showed the same result: ultrasound was not reflected from the mirror, as it should have happened, but penetrated it, and only then the waves were reflected from something completely "material "In the depths of the mirror world. This effect has never received a reasonable interpretation.
A person's abilities to perceive the world around him are very different at different stages of his development, for example, children under 4-5 years old are not at all able to see the so-called 3D drawings on the walls of houses or on asphalt, which are popular recently. And the ability to find a convex image encoded in stereoscopic drawings is also not given to everyone, since some people, due to their characteristics, are completely deprived of the ability to stereoreception, i.e. cannot see the world in volume due to weak interconnections of visual channels. Therefore, they cannot get the right to drive a car.
Optical illusions have long been used in architecture to achieve the desired visual effect by authors, and simple illustrated examples can clearly show how a person can perceive ordinary-looking drawings. Here are two examples:
When looking at this picture, you can see how these bright "gears" rotate relative to each other. However, when the gaze is fixed at a certain point, the rotation disappears. The principle of "revitalizing" the image is as follows: shades of different brightness are sensitively captured by the peripheral vision, and a well-chosen combination of different fragments and the alternation of their colors makes it possible to have the strongest effect on peripheral vision, as a result of which the effect of changing directions arises, and the circles begin to move.
The world around us is three-dimensional, but the projections of images onto the retina are two-dimensional. And studying illuminated objects, the eye tirelessly fixes the alternation of shadows and light on their surface.
Lightning-fast brain processing of the information received allows you to recreate a three-dimensional image. In a drawing with coffee beans, the illusion of waves traveling along the surface arises due to the distribution of the black and white border of the "seeds", which is perceived by the brain as a shadow. And since the position of the "shadow" is different everywhere, it seems that the picture is moving.
Each person is unique, therefore, despite the identical structure of the eye, the number of receptors in it, as well as the shape of the lens, can be quite different from each other. All this creates the preconditions that someone is easier to fall for optical illusions. And someone with difficulty. However, those who see these "games of light with the mind" are still the majority.