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 can you see pink dolphins? 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 can you see pink dolphins?

Amazonian river dolphins are often pink in color. It is not due to pigmentation - all dolphins are dark gray, but over time they brighten and turn pink due to the abrasion of the skin.

The intensity of pink is higher in males due to the injuries they receive in battles with each other for females.

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

What is a pomegranate?

The pomegranate has a very interesting history. The ancient Greek myth tells that the pomegranate was exactly the fruit that Persephone ate in the kingdom of Hades. Because she ate six seeds, she had to spend six months every year in the underworld. For the Greeks, the juicy, multi-seeded pomegranate has always symbolized the forces of darkness. In China, the pomegranate was a symbol of fertility.

As it is written in the Bible, King Solomon had a pomegranate garden. When the Israelites wandered the deserts, they really wanted pomegranates, which they were used to in Egypt. Muhammad advised his followers: "Eat the pomegranate, as it purifies the soul from envy and hatred."

Thus, you are convinced that in the East in ancient times great importance was attached to the grenade. It is assumed that it comes from Persia, but since ancient times it has grown in the warm countries of southern Asia, northern Africa and southern Europe. It has now gained distribution in South and Central America and in the United States.

Pomegranate grows on a shrub reaching a height of 1,5-6 meters. It has glossy leaves, and coral-red, waxy flowers grow at the ends of slender branches. The fruit is about the same size as an orange. It has a dense peel, painted in dark yellow with an admixture of red. There are many small seeds inside the fruit. They are covered with a sweet, red, juicy mass, which is often used in the manufacture of soft drinks. This juice is especially suitable for people living in hot, dry places. There are many varieties of pomegranate.

One Moor more than 700 years ago described 10 different varieties that grew in Spain at that time! There are three main varieties cultivated in the United States. They have the names "Wonderful", "Paper Shell" and "Spanish Ruby".

 Test your knowledge! Did you know...

▪ Did King Arthur really exist?

▪ Where can one observe elongated cylindrical clouds up to a kilometer long?

▪ How did the Peloponnesian War unfold?

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

Artificial eyes 27.07.2002

Canadian doctors managed to partially restore sight to a 39-year-old farmer who was blinded 20 years ago as a result of an accident. This is not the first patient whom Dr. W. Doubel, the inventor of "artificial eyes", helped to get rid of seemingly hopeless blindness.

Patients wear what looks like sunglasses with a miniature camera embedded in them. The microcomputer and stimulator are located in a special bag or on a belt. All this equipment is attached to a tiny device resembling a fire hydrant and implanted in the skull. This device connects two electrodes to the surface area of ​​the brain responsible for vision.

Unfortunately, "artificial eyes" will not help, for example, those who are blind from birth or who lost their sight in childhood, since in such patients the cerebral cortex is underdeveloped. Those who have lost the ability to see already at a fairly mature age, and who remember what and how it should look, with the help of "artificial eyes" will be able to distinguish between surrounding objects.

Other interesting news:

▪ Smartphone Xiaomi Redmi 10C

▪ The fastest non-cluster supercomputer in the world

▪ Intel to build chip factory in Ohio

▪ Integration of electric vehicles with the home power system

▪ Samsung 1TB SSD

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ site section Lightning protection. Article selection

▪ article A helpful fool is more dangerous than an enemy. Popular expression

▪ article Why a ban on marriages between cousins ​​does not make sense? Detailed answer

▪ article Geyser at home. Children's Science Lab

▪ article Antenna with switchable radiation pattern. Encyclopedia of radio electronics and electrical engineering

▪ article Building a hybrid cascade. 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