Analysis:
Mirrors can be roughly divided into three types: flat mirror, concave mirror mirror and convex mirror. Later, it was extended to Feng Shui mirror by Feng Shui master, and developed Eight Diagrams Mirror and Tiger Head Mirror.
Archimedes, an ancient Greek scientist, studied the reflection of light from a plane mirror and a spherical mirror, and found that the spherical concave mirror has the characteristic of focusing light on the focal point. The speed of light is 300,000 kilometers per second, from the earth to the moon, the whole journey is 380,000 kilometers, and the light only needs a little more than 1 second. It took only 8 minutes for light to travel from the sun to the earth through 654.38+50 million kilometers in space. Physics tells us that the seven-color light in the spectrum only occupies a small narrow band in the electromagnetic spectrum, while there are many electromagnetic waves besides red light and purple light, and visible light is related to gas. The light beam and light wave from the universe to the earth will condense into a gas or a mass of matter, just like a ball, which will have a direct impact on the human body. The ancients said that "gathering makes success", "dispersing makes qi", "visible makes qi" and "turning qi into qi", obviously referring to what kind of objects are on the ground, what kind of "evil shapes" (qi of objects) will appear. No wonder the sharp corner of another building rushed at your door or window. You must be uncomfortable.
A flat mirror is an ordinary mirror with the function of "reversing". It not only reflects or pushes back foreign objects, but also has the function of "diffusion and cancellation", which is called "feedback" and "negative feedback" in electronics. Positive feedback can be increased and negative feedback can be reduced.
The convex mirror is like a turtle shell, and the mirror surface is convex. In addition to reflecting light, it also has the function of astigmatism, which is the same as the car mirror. When an evil object rushes in, the evil can be driven away, so the convex mirror belongs to the product of "eliminating evil".
Concave mirror has the function of gathering, which is similar to the appearance of microwave antenna. If you see mountains, green mountains and green waters or beautiful gardens all around outside the house, you can use concave mirror to "inhale" them to increase the auspicious atmosphere inside the house.
Common mirroring functions:
First, the most primitive function is to reflect the appearance of predecessors or objects in the mirror by using the principle of luminescence.
Second, focus on fire.
Third, hanging a big mirror on the wall, relying on the reflection principle of the mirror, can visually increase the permeability of the room, broaden people's visual range, and thus play a role in relieving stress. Putting green plants in places where mirrors can reflect light will also alleviate visual fatigue to some extent.
Fourth, anti-tracking, you can see the rear by holding the small mirror in your hand.
Fifth, looking in the mirror more is good for your health! This is confirmed by experiments in St. Petersburg Institute of Medical Continuing Education in Russia. The radiation reflected by the mirror has an influence on the optical density of blood, which is related to the blood itself, the metal composition of the mirror coating, the shape of the mirror and the air composition between the mirror and the blood. Under the action of self-radiation, water molecules in the body vibrate, which leads to the improvement of blood antioxidant capacity and enzyme activity, and improves the biological function activity of the body as a whole.