Lantern of Diogenes. Meaning, origin, examples of the use of phraseological units

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

Winged words, phraseological units

Directory / Winged words, phraseological units

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Lantern of Diogenes

Jean-Leon Gerome, Diogenes

Phraseologism: Lantern of Diogenes.

Meaning: Search for the truth, search for a real person among the corrupted society.

Origin: Greek writer of the 4rd century n. e. Diogenes Laertes in the XNUMXth book of his work "The Life, Teachings and Opinions of Famous Philosophers" tells that the Greek philosopher Diogenes (XNUMXth century BC) once lit a lantern in the afternoon and, walking with him, said: "I am looking for a person ". Hence the expression "the lantern of Diogenes" - a way to seek the truth, to look for a real person among the corrupted society.

Random phraseology:

Tastes differ.

Meaning:

A proposal to end the dispute, the essence of which does not allow one to hope for any positive result.

Origin:

From Latin: De gustibus non est disputandum. From medieval scholastic sources. The expression probably came to Russian from French: On ne dispute pas de gouts.

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Scientists succeeded in synthesizing a decanter 26.05.2022

For more than a decade, various groups of scientists have tried with varying degrees of success to synthesize a new material, a form of carbon called graphyne, which is similar in many ways to the well-known graphene. And only recently, researchers from the University of Colorado at Boulder have developed a technique that allows you to perform the synthesis of a carafe with a guarantee of the result. This achievement will allow in the near future to more thoroughly study the properties of the decanter, which has prospects for its use in the fields of electronics, optics, nanotechnology, etc.

In nature, there are several ways in which carbon atoms can bond with each other and form different forms of carbon, allotropes. According to the possibilities of creating chemical bonds, carbon hybrids are designated as sp2, sp3 and sp. For example, the most common graphite is sp2 carbon, while the less common diamond is sp3 carbon.

However, the existing methods of chemical synthesis make it possible to synthesize carbon allotropes consisting of one type of hybrid atoms without any problems. This is exactly how graphene, fullerene and some other carbon materials were obtained at one time. Getting a carafe, a material in which there are different types of carbon atoms and carbon bonds, turned out to be a very, very difficult matter, and until recently only a few tiny particles of this material were obtained.

The University of Colorado scientists who synthesized the carafe are working towards what is known as reverse chemistry, complex chemical reactions that produce molecular structures and crystal lattices of a given type, such as synthetic polymers from DNA-like molecules. And the scientists decided to try to apply all their experience to try to synthesize a decanter.

After some theoretical research, the scientists decided to use a process called alkyne metathesis. This process is based on an organic chemical reaction, which entails the redistribution, reduction and transformation of alkyne bonds. By calculating the thermodynamics of the process with high precision and providing control over the kinetics of the chemical reaction, scientists were able to successfully synthesize the carafe, and in such a form that it had never been possible to synthesize before.

Having received a workable technology for the synthesis of a decanter and the first samples of the material, scientists are going to continue working towards ensuring large-scale industrial production. In parallel with this, research will be carried out on the properties of the obtained samples and methods for controlling the properties of the material using external influences of various kinds.

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