International Snowflake Day: festival of crystalline harmony Introduction: at the intersection of science and poetry International Snowflake Day (International Snowflake Day) is an unofficial but recognized by the scientific and cultural community festival celebrated on January 27. This date was chosen not by chance: it was on this day in 1885 that the American farmer-scientist Wilson Elvin Bentley made the first successful microphotography of a snow crystal. The festival symbolizes the unique intersection of scientific knowledge, natural perfection, and aesthetic admiration, prompting reflection on the invisible harmony governing the world. Wilson Bentley: the man who gave the world the beauty of the snowflake Bentley, living on a farm in the state of Vermont (the "snow belt" of the United States), was fascinated by snow from childhood. By combining a microscope with a camera, he spent years developing a filming technique. In January 1885, at the age of 19, he achieved success. His technique was exquisite: to catch a crystal on black velvet, carefully transfer it under the lens without melting the breath, and make a photo before the shape begins to melt. Over 46 years of work, Bentley made more than 5,000 photographs, never finding two identical snowflakes. His album "Snow Crystals" (1931) became a scientific and artistic bestseller, and he was nicknamed "Bentley Snowflake." Scientific context: why snowflakes are so perfect Snowflake Day is primarily a festival of science, studying the amazing laws of water crystallization. Hexagonal symmetry: The basic form of the snowflake is determined by the molecular structure of water (H₂O). The angle between the hydrogen atoms in the molecule is about 104.5°, which, when forming hydrogen bonds in the crystal, leads to the formation of a hexagonal (hexagonal) lattice. This is the fundamental reason for the six-ray symmetry of all snowflakes. Factors of formation: The shape of a specific snowflake depends on the temperature an ... Read more