From the red line. Meaning, origin, examples of the use of phraseological units

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WINGED WORDS, 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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From the red line

Proverbs and sayings

Phraseologism: From the red line.

Meaning: From a paragraph, from a line that is slightly indented to the right.

Origin: The word red in this phraseological unit means "beautiful, painted with bright, mostly red colors." In ancient manuscripts, the main text was usually written in ink, and the initial letters of each paragraph were decorated with colored drawings, sometimes gilded.

Random phraseology:

A ghost haunts Europe, the ghost of communism.

Meaning:

About a situation when a potential threat can come true, a certain probable phenomenon can become a reality, etc.

Origin:

The first sentence is from the Communist Manifesto, written in 1848 by Karl Marx (1818-1883) and Friedrich Engels (1820-1895). The Russian edition was first published in 1869 in Geneva; several illegal editions appeared in Russia in the 80s. XNUMXth century The phrase usually serves for all sorts of paraphrases, with the replacement of the word "communism" with something else appropriate to the occasion.

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Vortex electron microscope 20.11.2012

Electron microscopes are an extremely important scientific tool, especially in the field of materials science. Scientists from the Vienna University of Technology have improved this device and created an electron beam that rotates like a tornado. Vortex electron beams can be used not only to display the objects under study, but also to study the properties of materials on a nanometer scale.

In a tornado, individual air molecules do not necessarily rotate around their axis, but the general suction of the entire mass of air creates a powerful vortex. Rotating electron beams behave in a similar way, although they are primarily subject to quantum effects. Electrons behave like waves, and these quantum waves can spin like a tornado or water behind a ship's propeller. One of the advantages of the vortex electron microscope is that the vortex of electrons can transfer angular momentum to the object of study. As is known, the angular momentum of electrons in solid materials is closely related to its magnetic properties, which are very important for science.

The first successes in the creation of a vortex electron microscope were achieved two years ago, when an electron beam was passed through a tiny grid that divided the beam into three partial beams (one rotated to the right, the other to the left, and the third did not rotate). Now a more advanced version of this technology has been developed, does not require splitting the beam into three parts. For this, a screen was created, half of which is covered with a layer of silicon nitride. This layer is so thin that electrons can penetrate it with little or no absorption, but the screen leads to a phase shift and, with the help of special astigmatic lenses, effectively swirls the electron beam.

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