What is a collage? Detailed answer

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

What is a collage? Detailed answer

Big encyclopedia for children and adults

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

Did you know?

What is a collage?

A technique in the visual arts, which consists in gluing onto a base materials that differ from it in color and texture, as well as a work made using this technique.

Author: Mendeleev V.A.

Random interesting fact from the Great Encyclopedia:

What is a rainbow?

The rainbow is one of the most beautiful natural phenomena, and people have long thought about its nature. Even Aristotle, the ancient Greek philosopher, tried to explain the cause of the rainbow.

A sunbeam or ordinary beam of white light is actually a combination of all colors. You have probably noticed what happens when a beam of light hits the bevelled edge of a mirror or the surface of a soap bubble. The white beam splits into different colors. We will see red, orange, yellow, green, blue and purple.

An object that can decompose a beam of light into its components is called a "prism". The formed colors create a strip of colored matching lines, which is called the "spectrum".

A rainbow is a large curved spectrum, or a band of colored lines, formed as a result of the decomposition of a beam of light passing through raindrops. In this case, raindrops act as a prism.

A rainbow appears only during a downpour, when it rains and the sun shines at the same time. It is necessary to be strictly between the sun (it should be behind) and the rain (it should be in front of you). Otherwise, you won't see the rainbow! The sun sends out its rays, which, falling on the raindrops, create a spectrum. The sun, your eyes and the center of the rainbow must be in line!

If the sun is high in the sky, it is impossible to draw such a straight line. That is why rainbows can only be observed in the early morning or late afternoon. The morning rainbow means the sun is in the east and the rain is in the west. In an afternoon rainbow, the sun is in the west and the rain is in the east.

Superstitious people believed that the rainbow is a bad omen. They believed that the souls of the dead pass into the other world along the rainbow, and if a rainbow appeared, this means someone's imminent death.

Test your knowledge! Did you know...

▪ Why did Benjamin Franklin object to putting the eagle on the US coat of arms?

▪ When was the computer built?

▪ Who at the baptism of a child checked the temperature of the water in the font with a thermometer?

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

liquid laser in air 14.07.2015

Dye lasers are often referred to as "liquid" lasers because they use solutions of organic dyes as the laser material. This name smoothly migrated to the US Advanced Defense Research Projects Agency (DARPA) program High Energy Liquid Laser Area Defense System (HELLADS) - "High Energy Liquid Laser Protection System", and it remained there. This is despite the fact that the development of General Atomics was a combination of a solid-state laser with a high energy density and a dye laser that allows you to control the temperature.

The program began about ten years ago and set the goal of creating a 150 kW laser to destroy missiles and projectiles, which would weigh no more than 5 kg per kilowatt of energy and take up no more than 3 cubic meters in volume so that it could be placed in an aircraft. By 2007, a 15 kW laser had been built in the lab, and in April of this year, General Atomics conducted successful acceptance testing of the all-electric HELLADS system weighing less than 907 kg (i.e. about 6 kg per kilowatt) and with a volume of 1,3 x 0,4 x 0,5 m, powered by a lithium-ion battery. During the 30-second demonstration, the beam quality remained unchanged, thus confirming the possibility of maintaining the quality of the electric pump laser beam at a power of more than 50 kW.

Now the laser, or rather, its so far a demonstration sample for ground placement, will go for testing at the White Sands test site in New Mexico. The 8287 km test site is the largest area in the United States owned by the Department of Defense. General Atomics expects by 2018 to begin installing HELLADS lasers on its own Avenger-type drones, previously well known under the name Predator C.

Other interesting news:

▪ Light leads to the quantum world and the acceleration of supercurrents

▪ Fish in a cage

▪ NEC LaVie Hybrid Zero family of lightweight convertible ultrabooks

▪ DNA antenna

▪ Tsunami on Mars

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ site section Frequency synthesizers. Selection of articles

▪ Article King! Remember the Greeks. Popular expression

▪ article Who were the Aztecs? Detailed answer

▪ article Head of accounting department. Job description

▪ article Chandelier control by two wires. Encyclopedia of radio electronics and electrical engineering

▪ article Recharging a battery 7D-0,125 from a network charger. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

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