Name Gustav Hellmann | ||
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Died February 21, 1939, Berlin, Germany | ||
Education University of Gottingen | ||
Gustav Johann Georg Hellmann or Georg Gustav Hellmann (3 July 1854 – 21 February 1939) was a German meteorologist.
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Hellmann was born in Löwen (Lewin Brzeski), Prussian Silesia. Since 1907 to 1922, he was the principal of the Preußischen Meteorologischen Institut (Prussian Meteorological Institute) in Berlin. He died in Berlin.
Works
Work with snowflakes
In 1892 Hellmann piqued an interest in pictures of snowflakes, after seeing some of Wilson Bentley's photography, he commissioned a microphotographer to take shots of snowflakes to study. Upon review of these microphotographs, Hellmann noted a large difference in the snowflake pictures he took, and the ones Wilson Bentley had taken. Hellmann's snowflakes were irregular, there were various types, sizes, shapes, and forms. Bentley's snowflakes however, were perfect, symmetrical, six-sided and reminiscent of stars. Hellmann was perplexed by this, and openly questioned the accuracy of Bentley's work. He accused Bentley of manipulating the snowflake to get these perfect results. Bentley eventually admitted to somewhat doctoring the photographs, by scraping emulsion of the negatives, but he claimed that this did not change the integrity or accuracy of the photograph. This argument persisted for years, Hellmann insisted that altering the snowflake was unethical, as it misrepresented the snowflake in its truest form, Bentley argued the opposite. Although the argument never formally ended with one side winning, it is still Bentley's snowflake the world thinks of when they see snow fall.