Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

What are primary colors? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Comments on the article Comments on the article

Did you know?

What are primary colors?

If you pass a sunbeam through a glass prism, you will see that it turns into a rainbow of colors called a spectrum. It consists of all those colors that together form the so-called white light. But while you can probably see six or seven colors, white light is actually made up of three primary colors. These colors are called primaries because they cannot be combined with other colors.

The primary colors are orange-red, green and violet-blue. The other colors you see in the rainbow of the spectrum are combinations of primary colors. Looking at the spectrum, even with the naked eye, you can easily see three mixed colors, which are called secondary: blue-green, yellow and red. You can get these colors by mixing primary colors in certain combinations. But remember that we are talking about light. Paints for drawing are solids, that is, the exact opposite of light colors. Secondary light colors are the primary colors of paints. This means that among the colors, the primary colors are yellow, green-blue and red. By mixing these colors, you can get all the others.

There are many other ways to classify paints. Bright colors obtained without the help of black or white inks are called pure colors. Yellow, red, blue and green are pure colors. The colors obtained by mixing pure colors with black are called colored shadows. Dark brown is a color shade. Colors obtained by mixing them with white are called hues. Pink color, ivory color are shades. Colors obtained by mixing pure colors with black and white are called tones. Reddish brown, beige and gray are tones.

Here is another interesting fact about color. What color do you think the red paint is before you open the box? She doesn't look red, but black! This is because where there is no light, there is no color. In a dark room, there is no such thing as color. The color of an object depends on the material from which it is made and on the light in which we consider this object: for example, a red-orange sweater looks like this because wool dye reflects the red-orange part of the light spectrum. Violet-blue and green parts of the spectrum are absorbed by the material of the sweater. Only orange-red rays are reflected, which is what you see.

Author: Likum A.

 Random interesting fact from the Great Encyclopedia:

Where were gas lamps installed at the end of the 19th century where you could buy hot coffee?

In 1897, Pluto Lamp gas lamps were installed at several points in London. These devices were not only street lighting, but also worked as vending machines, offering hot coffee, tea and cocoa. In addition, cigarettes and postcards could be bought from vending machines. One of the models even had a telegraph connected to send messages to Scotland Yard - and it all ran on gas.

 Test your knowledge! Did you know...

▪ How does a cricket sing?

▪ When was the first underground launched?

▪ Who tried to put on chickens in poultry farms red lenses?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

Focus on the nose 17.09.2009

As psychologists from the University of California (USA) have shown, when looking at a face, we mainly pay attention to its central part.

By showing participants the images of familiar and unfamiliar people on a computer screen, the researchers recorded eye movements. Most people looking at images of faces look first at the area of ​​the face to the left of the nose, then at the tip of the nose, and then at the eyes.

In more than half of the cases, the first glance was enough to recognize a familiar face, the second glance increased the accuracy of recognition, and the third (by eye) did not solve anything. However, perhaps this behavior is typical mainly for Americans.

Similar experiments conducted by Scottish psychologists showed that the Japanese and Chinese pay special attention to the nose when recognizing faces, while the Europeans also look at the eyes and mouth.

Other interesting news:

▪ Smartphone Honor Play4 Pro with thermometer function

▪ Water from the wind

▪ Destruction of memory chips on command

▪ Power supplies Dark Power 12

▪ Fish in a cage

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the website Experiments in Physics. Selection of articles

▪ article Love and hunger rule the world. Popular expression

▪ How did Napoleon's wars unfold? Detailed answer

▪ article Pencil tree. Legends, cultivation, methods of application

▪ article Storozh-R - a device for continuous radiation monitoring. Encyclopedia of radio electronics and electrical engineering

▪ article Changing the characteristics of generators without rewinding the windings. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

Name:


Email (optional):


A comment:





All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews

www.diagram.com.ua

www.diagram.com.ua
2000-2024