What is DAH? Detailed answer

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What is DAH? Detailed answer

Big encyclopedia for children and adults

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

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What is DAX?

This is a German generalized index of stock prices, determined by the analysis of "blue chips" on the Frankfurt Stock Exchange.

Author: Mendeleev V.A.

Random interesting fact from the Great Encyclopedia:

Why was Alcatraz the only prison where inmates took warm showers?

The prison on Alcatraz Island, where especially dangerous American criminals were kept, worked until 1963 and was at that time the only federal prison where prisoners took a shower with warm water. But the reason for this was by no means humanistic considerations: the administration decided that the prisoners, accustomed to comfort, had less chance of successfully escaping by swimming through the cold San Francisco Bay.

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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. ... >>

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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

Chinese language sets children to music 28.01.2017

In many modern languages, the meaning of a word depends on the pitch at which it is pronounced; pitch variations of syllables and words can completely change the meaning of what we are talking about. Such languages are called tone languages, and one of the most famous examples is the Mandarin Chinese language, including its variety Putonghua, which is the official language in China, Taiwan and Singapore and which is distinguished four tones. There are also more complex cases, such as Lamnso, the language of the Nso people from Northern Cameroon. Nso communicate with each other already on eight tones, and the meaning of each tone is determined by its variations during the pronunciation of a particular word. It can be assumed that just such languages should be especially closely related to musicality.

This hypothesis was put forward some time ago by psychologists from the University of California at San Diego, who worked with music students. The researchers were trying to understand whether the pitch perception of students whose first language was Chinese is different from the pitch perception of those who speak English from birth. However, at first it was about absolute pitch, that is, the ability to recognize a sound (note) by itself, without interconnection with other sounds.

The scientists did not investigate absolute pitch, but "relative pitch", that is, the ability to determine the pitch of a sound in the context of its neighbors. It is precisely thanks to "relative" hearing that we can, for example, pull up a song after other singers, equaling other people's voices. And the participants of the study this time were not students, but children aged 3-5, some with native Chinese, some with native English. Both were asked to pass several musical tests to recognize the pitch of sounds and their timbre.

As a result, it turned out that both hear the timbre in the same way, but the pitch is different: children with native Chinese felt the pitch better than children with native English. Obviously, both speech skills and musical abilities do not develop in our brain separately, not independently of each other, but, let's say, in close cooperation - "language" affects "music".

However, it does not at all follow from this that a child who studies music must by all means begin to learn some tone language. Music is not only the difference between "la" and the note "si", it is also timbres, rhythms and a mass of syntactic rules by which any piece of music lives. So in order to know and understand music better, you need to deal with it; although it is worth noting that an additional foreign language has never bothered anyone.

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