Saturday, February 20, 2021

February 20th in stamps Alfred Escher, Ansel Adams, Henri Moissan, Max Schreck

Here are some events that happened on February 20th. It could be an event or a person that died or was born on that day


1819 Born: Alfred Escher, Swiss businessman and politician (d. 1882)

Johann Heinrich Alfred Escher vom Glas, known as Alfred Escher (20 February 1819 – 6 December 1882) was a Swiss politician, business leader and railways pioneer. Thanks to his numerous political posts and his significant role in the foundation and management of the Swiss Northeastern Railway, the Swiss Federal Institute of Technology, Credit Suisse, Swiss Life and the Gotthard Railway, Escher had an unmatched influence on Switzerland's political and economic development in the 19th century.

Swiss stamps depicting Alfred Escher

Switzerland 2019 200. Birthday Alfred Escher President Gotthard Railway



1902 Born: Ansel Adams, American photographer and environmentalist (d. 1984)

Ansel Easton Adams (February 20, 1902 – April 22, 1984) was an American landscape photographer and environmentalist known for his black-and-white images of the American West. He helped found Group f/64, an association of photographers advocating "pure" photography which favored sharp focus and the use of the full tonal range of a photograph. He and Fred Archer developed an exacting system of image-making called the Zone System, a method of achieving a desired final print through a deeply technical understanding of how tonal range is recorded and developed in exposure, negative development, and printing. The resulting clarity and depth of such images characterized his photography.

Adams was a life-long advocate for environmental conservation, and his photographic practice was deeply entwined with this advocacy. At age 12, he was given his first camera during his first visit to Yosemite National Park. He developed his early photographic work as a member of the Sierra Club. He was later contracted with the United States Department of the Interior to make photographs of national parks. For his work and his persistent advocacy, which helped expand the National Park system, he was awarded the Presidential Medal of Freedom in 1980.

Adams was a key advisor in establishing the photography department at the Museum of Modern Art in New York, an important landmark in securing photography's institutional legitimacy. He helped to stage that department's first photography exhibition, helped found the photography magazine Aperture, and co-founded the Center for Creative Photography at the University of Arizona.

US minisheet featuring Ansel Adam's works

US Sheet 37c Masters of Photography



1907 Died: Henri Moissan, French chemist and academic, Nobel Prize laureate (b. 1852)

Ferdinand Frédéric Henri Moissan (28 September 1852 – 20 February 1907) was a French chemist and pharmacist who won the 1906 Nobel Prize in Chemistry for his work in isolating fluorine from its compounds. Moissan was one of the original members of the International Atomic Weights Committee.

Moissan was born in Paris on 28 September 1852, the son of a minor officer of the eastern railway company, Francis Ferdinand Moissan, and a seamstress, Joséphine Améraldine (née Mitel). His mother was of Jewish descent, his father wasn't. In 1864 they moved to Meaux, where he attended the local school. In 1870 he left the school without the grade universitaire necessary to attend university. Moissan became a trainee in pharmacy in 1871 and in 1872 he started working for a chemist in Paris, where he was able to save a person poisoned with arsenic. He decided to study chemistry and began first at the laboratory of Edmond Frémy and later at that of Pierre Paul Dehérain. Dehérain persuaded him to pursue an academic career. He passed the baccalauréat, which was necessary to study at university, in 1874 after an earlier failed attempt. He also became qualified as first-class pharmacist at the École Supérieure de Pharmacie in 1879, and received his doctoral degree from the Faculté des Sciences in 1880. During his time in Paris he became a friend of the chemist Alexandre Léon Étard and the botanist Vasque.

He published his first scientific paper, about carbon dioxide and oxygen metabolism in plants, with Dehérain in 1874. He left plant physiology and then turned towards inorganic chemistry; subsequently his research on pyrophoric iron was well received by the two most prominent French inorganic chemists of that time, Henri Etienne Sainte-Claire Deville and Jules Henri Debray. After Moissan received his Ph.D. on cyanogen and its reactions to form cyanures in 1880, his friend Landrine offered him a position at an analytic laboratory. His marriage, to Léonie Lugan, took place in 1882. They had a son in 1885.

During the 1880s, Moissan focused on fluorine chemistry and especially the production of fluorine itself. He had no laboratory of his own, but used several laboratories, for example that of Charles Friedel. There he had access to a strong battery consisting of 90 Bunsen cells which made it possible to observe a gas produced by the electrolysis of molten arsenic trichloride; the gas was reabsorbed by the arsenic trichloride. The electrolysis of hydrogen fluoride yielded fluorine on 26 June 1886. The French academy of science sent three representatives, Marcellin Berthelot, Henri Debray, and Edmond Frémy, to verify the results, but Moissan was unable to reproduce them, owing to the absence from the hydrogen fluoride of traces of potassium fluoride present in the previous experiments. After resolving the problem and demonstrating the production of fluorine several times, he was awarded a prize of 10,000 francs. In subsequent years, until 1891, he focused on the study of fluorine chemistry. He discovered numerous fluorine compounds, such as (together with Paul Lebeau) SF6 in 1901. His research in the production of boron and artificial diamonds and the development of an electrically heated oven capable of reaching 3500 °C using 2200 amperes at 80 volts followed by 1900.

His newly developed arc furnace led to the production of borides and carbides of numerous elements (e.g. silicon boride), another of his research areas.


French stamps depicting Henri Moissan

Henri Moissan, Nobel Chemistry Winner, France 1986

France 2006 - Henri Moissan - Nobel Prize Winner in Chemistry



1936 Died: Max Schreck, German actor (b. 1879)

Friedrich Gustav Maximilian Schreck (6 September 1879 – 20 February 1936), known professionally as Max Schreck, was a German actor, best known for his lead role as the vampire Count Orlok in the film Nosferatu (1922)

Nosferatu: A Symphony of Horror (German: Nosferatu, eine Symphonie des Grauens), or simply Nosferatu, is a 1922 German Expressionist horror film, directed by F. W. Murnau, starring Max Schreck as the vampire Count Orlok. The film, shot in 1921 and released in 1922, was an unauthorized adaptation of Bram Stoker's Dracula (1897); the Stoker Estate had refused permission. Various names and other details were changed from the novel: for instance, vampire became Nosferatu, and Count Dracula became Count Orlok.

Stoker's heirs sued over the adaptation, and a court ruling ordered that all copies of the film be destroyed. However, a few prints of Nosferatu survived, and the film came to be regarded as an influential masterpiece of cinema.

The film was released in the United States on 3 June 1929, seven years after its original premiere in Germany.

Below are 2 Maxicards issued in Spain commemorating Nosferatu



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