Hand snake. Effective trick and its solution

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EFFECTIVE FOCUSES AND THEIR CLUES
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Hand snake. Focus secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

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Focus Description:

The magician suggests rubbing a plastic ruler on the wool and bringing it to the kite: it will raise its head.

Focus secret:

The ruler acquires an electric charge and begins to attract light objects.

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Random news from the Archive

A supramolecule 20 nanometers wide obtained 15.04.2020

Scientists from the University of South Florida (USA) have reached a new milestone in the development of two-dimensional supramolecules - the building blocks that are used in nanotechnology and without which the development of nanomaterials is impossible. They "built" a supramolecule 20 nanometers wide. Previously, the size of such structures did not exceed 10 nanometers.

"Our research team has been able to overcome one of the major supramolecular hurdles by developing a well-defined supramolecular structure that moves in size on a 20-nanometer scale," said Xiaopeng, assistant professor of chemistry at the University of South Florida and leader of the study. "This is, in fact, a world record in this area of chemistry.

Supramolecules are large molecular structures made up of individual molecules. Unlike traditional chemistry, which focuses on covalent bonds between atoms, supramolecular chemistry studies non-covalent interactions between molecules themselves. Often these interactions lead to the self-assembly of molecules, naturally forming complex structures capable of performing various functions.

In this latest study, the team was able to construct a metal-supramolecular hexagonal lattice 20 nanometers wide by combining intra- and intermolecular self-assembly processes. Li says the success of this work will further the understanding of the design principles behind these molecular entities and may one day lead to the development of new materials with as-yet-unknown functions and properties.

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