User:Gulmammad
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Contributions
• Sokolov-Ternov effect
• Hamilton's principal function
• Hamilton's characteristic function
• Experimental observation of Hawking radiation
• Particle number operator*
• Self-organization in biology*
• Aleksandr Chudakov
• Alexey Andreevich
• A. P. Balachandran
• Igor Ternov
• Mark Trodden
• Stanislav Mikheyev
• Alexei Smirnov*
• Shamil Asgarov
• Seifallah Randjbar-Daemi
• Habil Aliyev
• Ahmad Bakikhanov
• Aşık Khanlar
• Suleyman Valiyev
• Heino Finkelmann
• Tom Lubensky
• Lubna al-Hussein
• Sheylanli tribe
• Sheylanli
• Boyat
• Ashaghy Aylis
• Agbash
• International Liquid Crystal Society
• British Liquid Crystal Society
• International Centre for Theoretical Physics*
• ANS Group of Companies
• ANS TV
• ANS ChM
• Khudafarin Bridges
• Azerbaijan Time
• Yemen Türküsü
• Jujalarim
• Föppl–von Kármán equations
- * Didn't create but significantly contributed
Leonhard Euler (1707–1783) was a Swiss mathematician and physicist. He developed important concepts and proved mathematical theorems in fields as diverse as calculus, number theory and topology. Euler introduced much of the modern mathematical terminology and notation, particularly for mathematical analysis, such as the notion of a mathematical function. He is also renowned for his work in mechanics, optics and astronomy. Euler is considered to be the preeminent mathematician of the 18th century and one of the greatest of all time. According to Guinness World Records, he is also the most prolific; his collected works fill 60 to 80 quarto volumes. Euler was featured on the sixth series of the Swiss ten-franc banknote and on numerous Swiss, German and Russian stamps. The asteroid 2002 Euler was named in his honor. This portrait of Euler was created by the Swiss painter Jakob Emanuel Handmann in 1753 and is now in the collection of the Kunstmuseum Basel.
Painting credit: Jakob Emanuel Handmann; restored by Bammesk
Today's featured article
The Secretum was a British Museum collection of the nineteenth and early twentieth centuries that held artefacts and images deemed sexually graphic. Many of the items were from pre-Christian traditions and the collection covered wide ranges of human history and geography. Many of the early artefacts with erotic or sexually graphic images acquired by the museum were not put on public display. Modern scholars believe this segregation was probably motivated by a paternalistic stance from the museum to keep what they considered morally dangerous material away from the public. By the 1860s there were around 700 such items held by the museum. In 1865 the antiquarian George Witt donated his phallocentric collection of 434 artefacts to the museum, which led to the formal setting up of the Secretum. Beginning in 1912 items were gradually transferred from the Secretum into departments appropriate for their time frame and culture. The last remaining items were moved out of the collection in 2005. (Full article...)