Coloring. The nature of light and color

When composing a bouquet, one should pay attention not only to the set of colors and decorative elements, the meaning of the flower, but also to how it will look under different lighting conditions and how the color scheme affects a person.

I. Newton in 1666, using a sunbeam and a prism, determined the color spectrum. Red, orange, yellow, green, cyan, blue and violet are the colors that make up the white light. In other words, light is the region of electromagnetic radiation visible to the human eye (electromagnetic energy). As we know from school, the radiation comes from the main source – the Sun and is divided into infrared, ultraviolet and eye-visible waves. The last type of radiation – this is the white light that we see.

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Newton’s color spectrum

Starting from ancient Greek scholars, people tried to find the answer to the questions “what is light?”, “Where does it come from?”, And “how does it spread?”. Nowadays, when scientists have much more opportunities than Newton and others, science speaks of the duality of the nature of light. Penetrating through the hole, it behaves like a wave, and when it hits, for example, a metal surface, it behaves like a particle – a photon – bombards this surface.

Light waves

A wave is understood to mean a part of the oscillation that has translational motion. They can be refracted in different ways and cause different color sensations. It depends on their length.

The stream of light, reaching the surface of the body, is divided into three parts: reflected, transmitted and absorbed.

Bodies can be transparent and not transparent. Only transparent bodies tend to reflect, absorb and transmit light through themselves. We determine the color of the object after our eye fixes the interaction of light and the object, which depends on the wavelength of the reflected light. A white sheet is white because it reflects all colors, green will mainly reflect green colors, blue – blue, etc. if an object absorbs all colors, it is perceived by the eye as black.

Part of the violet, blue, blue rays is delayed and scattered by the air. As a result, we see a blue sky and pink snow on the tops of the mountains.

The reflection is mirror (the angle of reflection of the beam is the same as the incidence) and diffusion, in which the reflection beam can be different. The surfaces with which a person is in contact reflect the rays partly specularly and partly diffusely. Shiny and glossy surfaces give a clear specular reflection of color, and matte and rough surfaces are characterized by diffusion. That is why the eye sees a not so clearly displayed light source.

Sources of light

Natural

Natural. The sun and other components of the cosmos. But the glow of the planets, stars and the moon we see distorted due to the atmosphere.

Man-made

Artificial. These include various kinds of lamps, lasers, etc. When illuminating an object with an ordinary incandescent lamp, it acquires a warm yellowish tint (a tungsten filament heats up to yellow). The use of fluorescent lamps is known for cold glow (they shine mainly with ultraviolet light, and the visible spectrum is made up of violet, blue and green colors, and there is very little thermal radiation). Halogen lamps also consist of a tungsten filament, a pair of halogens that are not in vacuum (unlike obsolete Ilyich bulbs). Colors under such lighting become brighter and juicier, more cheerful.

Laser

The most useful piece of light is the laser. Photons are released from atoms in a laser tube by the action of electricity. They fly out of it in the form of a narrow ray of light or in some other form of electromagnetic radiation. It depends on the substance used to produce photons.

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