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

Where is a protest breed of pigs raised that resembles the national flag in a pattern? 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?

Where is a protest breed of pigs raised that resembles the national flag in a pattern?

At the beginning of the 20th century, Danes living in the northern regions of the German state of Schleswig-Holstein were forbidden to fly the Danish flag. In response, they tried to embody his design in pigs and developed a new breed with a vertical white stripe, called the "Danish Protest".

In 1968, the breed began to be considered extinct, but then pigs with a similar phenotype were again found. Today, the authorities of Schleswig-Holstein encourage their breeding, noting the cultural value of the breed.

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

What keeps a duck afloat?

When we use the word "duck" we really mean a very wide variety of birds, from the familiar inhabitants of the poultry yard to the wild travelers in the sky. The duck family includes swans, geese, mergansers, or fishing ducks, and various types of ducks.

Most wild ducks live from the Canadian border to areas where rare trees are still found in the Far North. Only in winter they fly to the central and southern states. But in the south they remain for a short time. As soon as the ice begins to melt in the north, they return home - to reservoirs, rivers, swamps, on the shores of lakes and the sea coast, where they like to live.

Ducks can swim in icy water without any problems.

The reason they stay afloat is because the duck's body is densely covered with waterproof feathers. A gland located near the tail secretes an oily liquid that wets the feathers. Under them is a thick layer of fluff. Even the webbed feet of ducks protect them from the cold winter: since they have neither blood vessels nor nerves, they simply do not feel the cold.

The paws of ducks are located behind the body, which allows them to swim excellently, and on land gives them a characteristic waddling gait. Ducks can move quickly through the air and in short flights reach speeds of up to 112 km / h! Most ducks build nests on the ground near water. They lay them out with tender plants and crush them with their breasts. Females heat their eggs with their breasts while hatching. The duck lays from 6 to 14 eggs and sits on them herself.

Birds molt after mating season. Until the feathers on the wings grow back, they cannot fly. To protect themselves at this time from enemies, they become very quiet, trying not to draw attention to themselves.

There are about 160 species of ducks worldwide, and they are found on every continent except Antarctica.

 Test your knowledge! Did you know...

▪ Who was Muhammad?

▪ Why does the highest peak in the world have an English name?

▪ The title of which Rembrandt painting is the opposite of the artist's intent?

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:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

The phone will tell a lot about its owner 20.11.2016

Of course, your smartphone can give away a lot of your secrets, but it turns out that it can tell a lot about you, even if you do not use the Internet on it and always erase SMS along with your call history.

That film of sweat and grease that covers the screen of any actively used smartphone is essentially your bacterial selfie, and it is not going to put you in the best light.

It turns out that this raid can tell a lot about your life and daily habits. In a recent study, researchers swabbed the hands and phones of 39 volunteers. By simply analyzing the samples in a mass spectrometer (a machine that sorts and identifies chemicals), the researchers were able to tell quite accurately about the lifestyles of everyone involved in the experiment.

For example, the researchers found that one of the participants spent a lot of time outdoors, thanks to the ingredients in sunscreen and insect repellants in the samples. They also quickly identified anti-aging creams, taking medications like antidepressants, a man who had recently been treated for baldness, and even ascertained the subjects' preferred cuisine from trace amounts of herbs and spices in the samples.

If it seems to you that all this is like some kind of crime show, then you are not far from the truth. The study was supported by the US Department of Justice. As the researchers write, forensic scientists may be interested in such methods to determine the location and lifestyle of the offender. But in this way it is also possible to reveal whether a person was exposed to harmful substances that were present in the air at a certain time and in a certain place.

To quickly understand where you've been and what you've been doing on the fly, you need to compile a database that contains the characteristics of most lotions, foods, and other chemicals that we come into contact with on a daily basis. Now such a base does not exist, and it will take quite a lot of effort to create it.

Other interesting news:

▪ Earth black box

▪ Robot gardener

▪ Cow with a methane tank

▪ Portable projector LG PF1000U

▪ Google+ social network

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ site section Acoustic systems. Article selection

▪ article At the dawn of a foggy youth. Popular expression

▪ article Why Korney Chukovsky in one of the books under his editorship called God a magician? Detailed answer

▪ article Woodruff odorous. Legends, cultivation, methods of application

▪ article Small-size antennas of portable stations of SV communication. Part 2. Encyclopedia of radio electronics and electrical engineering

▪ article Restoration of fusible links. 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