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Random Question Quiz Online:

What expressions, according to the witty writer Georgy Pluzhnikov, should a glossy magazine avoid?


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Random aphorism:

"Оскорбляя другого, ты не заботишься о самом себе" (Леонардо да Винчи)
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Random proverb:

Сам держишь миску, сам держишь калебасу. Креольская пословица
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Random phraseological unit:

The science of tender passion
(О любви и искусстве обольщения)
From the novel in verse "Eugene Onegin" (1823-1831) by A. S. Pushkin (1799-1837) (ch. 1, stanza 8).
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Random phrase in Latin:

Ecce spectaculum dignum, ad quod respiciat intentus operi suo Deus. - Вот зрелище, достойное того, чтобы на него оглянулся Бог, созерцая свое творение.
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Random fun puzzle:

What is the quietest sport and why?


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Random fact "Did you know?":

A study conducted among German teenagers showed that their adherence to cigarettes depends on whether their parents smoke. If there are no smoking adults in the family, then only a fifth of the children smoke. If the father or mother smokes, 40 percent of children imitate them, if both parents smoke, then 45 percent. Two-thirds of children of smoking single mothers smoke.
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AT LEISURE

Effective means for relaxation and good mood

Aphorisms of famous people. The most popular quotes by famous authors

Big encyclopedia. Questions for quiz and self-education. Simple answers to complex questions

Riddles, puzzles, trick questions. Test your resourcefulness and sense of humor!

Online quiz. Interesting questions on any topic

Entertaining experiences at home. Interesting physical and chemical experiments with illustrations.

Do you know that... To help the erudite. Database on the history, geography, biology, science, technology, sports, culture, traditions of the peoples of the world

visual illusions. Are you sure you really see what you see?

Stories from the life of a radio amateur. True cautionary tales told from 2002 to 2024 by site readers www.diagram.com.ua

Winged words, phraseological units. Meanings, history of origin, examples of use

Cultivated and wild plants. Legends, myths, symbolism, description, cultivation, methods of application

palindromes. Magic phrases that read the same from left to right and vice versa

Proverbs and sayings of the peoples of the world. Popular wisdom in short sayings

Assembling the Rubik's Cube. A simple guide to solving the Rubik's Cube with detailed illustrations

Crosswordist's Handbook. Convenient word search by mask

Spectacular tricks and their clues. Impressive magic tricks with detailed explanation of secrets

Wonders of nature. An exciting journey around the world

THEORY OF ILLUSIONS

Theory of Illusions

EXAMPLES OF ILLUSIONS

Examples of illusions

VOLUME GIF ANIMATIONS

Volumetric gif-animations

IT IS INTERESTING

Random Question Quiz Online:

Max Frisch believed that without HER we cannot be truthful. Thomas Jefferson called HER the habit of sacrificing petty comforts. And Georg Hegel noted that SHE is a sign of benevolence and readiness for services, especially in relation to those with whom we are not yet in close acquaintance or friendship. Please name her.


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Random aphorism:

"Спорить умеют многие, мало кто умеет просто беседовать" (Эймос Бронсон Олкотт)
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Random proverb:

When the sand gathers, a hill grows, when people gather, a master appears. Karakalpak proverb
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Random phraseological unit:

What occasion is the noise?
(Used as a way to find out what is actually happening (jokingly), as well as a reminder of the need to maintain silence and order (jokingly ironic))
From the story "The Booth" (1868) by the Russian populist writer Gleb Ivanovich Uspensky (1843-1902), a question from policeman Mymretsov.
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Random fun puzzle:

The boy fell from 4 steps and broke his leg. How many legs will a boy break if he falls off 40 steps?


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Random fact "Did you know?":

99,9% of hereditary information is the same in all people. Such purely individual characteristics as skin color, eyes and hair, facial features, fingerprints, temperament, abilities and talents, as well as hereditary diseases, fit into 0,1% of our genome.
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Random article of the Great Encyclopedia for Children and Adults:

What language do the words ax and dog belong to?

We are accustomed to consider these words primordially Russian. However, philologists have found that this is not at all the case. In the VIII-VII centuries BC, at the time when the Slavic ethnos was taking shape, Scythian tribes roamed in the endless steppe between the Danube and Don rivers. It was a powerful, brave, gifted people.

The Scythians are famous not only for their raids on Persia and the Greek colonies, not only for their victories over the famous Roman legions. They left us magnificent examples of small sculpture - images of animals, warriors, scenes of battle and hunting, decorating their armor and weapons, are not inferior to the best examples of Greek art.

The Scythians not only fought - they built cities, laid trade routes. The Scythians lived more or less peacefully with their neighbors, the Slavs, in any case, no mention of serious military clashes was found in the documents of that era. But the fact that there were close ties between the Scythian and Slavic leaders is known for certain. It is also known that the Slavic leaders and their warriors adopted a lot from the Scythian culture.

When peoples are in close contact, such borrowings are inevitable. Including linguistic ones. So, the word "ax" is Scythian. The Slavs called this tool "ax". The word "dog" also came from the language of the Scythians - our ancestors called their four-legged friend "dog". By the way, the word "good" is also Scythian, perfectly coexisting with the original Slavic "good".
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A random story from the life of a radio amateur:

I am a radio amateur, callsign on the air is UT5EDT. But as for the repair of household radio equipment .. I pass. Didn't like it, didn't do it, experience - zero. But my friends get me. They ask to repair, then one thing, then another. And then my neighbor Dima comes and says: "The Rubin TV is covered. Look what's there." I reply that I don't understand. And he was surprised: "So you have a soldering iron!" The debate went on for a long time. Finally he said: "Yes, you just open it and look!" I unscrewed the back cover of his TV ... LOOKED and twisted it. Dima watched this procedure in surprise and said: "What is already working?" I answered: "No, but I, as you asked, LOOKED at it!"
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Latest news of science and technology, new electronics:

The speech of sperm whales is similar to that of humans 18.05.2024

In the world of the ocean, where the mysterious and unknown coexists with the studied, sperm whales, with their huge brains, are of particular interest to science. Researchers, working with a huge array of audio recordings collected during the Dominica Sperm Whale Project (DSWP) - more than 8000 recordings, seek to unravel the secrets of their communication and understand the structure and complexity of the language of these mysterious creatures. By studying in detail the recordings of 60 sperm whales in the eastern Caribbean, scientists have revealed surprising features of their communication, revealing the complexity of their language. "Our observations indicate that these whales have a highly developed combinatorial communication system, including rubato and ornaments, which indicates their ability to quickly adapt and vary during communication. Despite significant differences in evolution, sperm whales have elements in their communication that are characteristic of human communication," says Shane Gero, a biologist at Carleton University and director of the CETI project. Issl ... >>

Electron spin for quantum information transfer 18.05.2024

The transfer of quantum information remains one of the key tasks of modern science. Recent advances in the use of electron spin to expand the capabilities of information transfer in quantum systems have become very important. Researchers at Lawrence Berkeley National Laboratory are pushing the frontiers of quantum information science by experimenting with the possibilities of electron spin. Electron spin, a natural quantum bit, is a potentially powerful means for storing and transmitting information in quantum systems. Magnon wave packets, collective excitations of electron spin, have revealed their potential to transmit quantum information over significant distances. The work of Berkeley Lab researchers has revolutionized the way such excitations propagate in antiferromagnets, opening up new prospects for quantum technologies. Using pairs of laser pulses, scientists disrupted antiferromagnetic order in one place and simultaneously studied it in another, creating ... >>

Sound-absorbing silk 17.05.2024

In a world where noise is becoming increasingly intrusive, the emergence of innovative materials that can reduce its impact is of great interest. MIT researchers have unveiled a new sound-absorbing silk fabric that promises to revolutionize quiet spaces. The Massachusetts Institute of Technology (MIT) has made significant breakthroughs in the field of sound absorption. Researchers have developed a special silk fabric that can effectively absorb sound and create cozy, quiet environments. The fabric, thinner than a human hair, contains a unique vibrating fiber that is activated when voltage is applied to it. This feature allows the fabric to be used to suppress sound waves in two different ways. The first method uses fabric vibrations to generate sound waves that cover and cancel out unwanted noise, similar to noise-canceling headphones. This p ... >>

Random news from the Archive

Converting a conductor to a dielectric 07.04.2020

A way has been found to control the electrical and magnetic properties of an extremely fragile quantum material for supersensitive sensors by stretching and compressing at the atomic level.

Complex oxides are curious compounds. Some of them, depending on the phase, can exhibit magnetic and electrical properties in different ways. Physicists have long observed the "unconventional" behavior of electrons in such materials and dream of controlling their conductive properties.

Researchers at the SLAC National Accelerator Laboratory and Stanford University have managed to fabricate an ultrathin membrane from an oxide codenamed LCMO, whose elastic deformation affects its conductive properties.

LCMO is an oxide of manganese and lanthanum-calcium La0.7Ca0.3MnO3. It is called "quantum" material. As soon as they mocked him in the laboratories before, but until now, scientists have not dared to stretch into a nanoscale membrane. Their conductive properties strongly depend on the distance between the atoms of such oxides. Unfortunately, destroying such material is easier than smashing a ceramic mug on a marble floor.

To fool Mother Nature, a thin LCMO membrane was artificially grown on a surface that had been pre-coated with a plastic film, sort of like a plastic bag in a grocery store. Using microscopic manipulators, the membrane together with the film was stretched and fixed on another solid surface with glue. With X-rays, scientists enlightened the resulting metamaterial and measured the distance between atoms, making sure that it really increased. Then we evaluated how the electrical resistance and magnetic properties changed after deformation.

Mechanical manipulation of the electromagnetic properties of materials will be useful to developers of new generation electronics. Such flexible materials will find their application in power transmission devices and computing circuits, as well as in the creation of ultra-sensitive sensors and detectors that measure minute changes in currents and fields.

Other interesting news:

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▪ Adults and children perceive time differently.

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News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ site section Indicators, sensors, detectors. Article selection

▪ article by Robert Penn Warren. Famous aphorisms

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▪ article Colored water. Focus Secret


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