User:Gulmammad

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

Picture of the day

Columbus is the capital and most populous city of the U.S. state of Ohio. It had a population of 905,748 at the 2020 census, making it the 14th most populous city in the United States, and a metropolitan area population of around 2.2 million. The city is the county seat of Franklin County and also extends into Delaware and Fairfield counties. Columbus was founded in 1812 at the confluence of the Scioto and Olentangy rivers and was named after Christopher Columbus. It became the state capital in 1816 and grew during the nineteenth century as a transportation and industrial hub linked by the National Road, canals and railroads. Columbus is now a center for high-tech manufacturing with plants operated by Intel, Honda and LG Energy Solution and is home to Ohio State University, one of the largest universities in the country. This photograph shows Downtown Columbus and the Scioto Mile, viewed from the southwest.

Today's featured article

Illustration of the value of π

The number π (pi) is a mathematical constant, approximately equal to 3.14159, that is the ratio of a circle's circumference to its diameter. It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, though it is sometimes approximated as ⁠22/7⁠. Its decimal representation never ends, nor does it enter a permanently repeating pattern. The digits of π appear to be evenly distributed, but no proof of this conjecture has been found. It appears in many formulae in mathematics and physics, and for thousands of years mathematicians have computed its value with increasing accuracy. Since the late 20th century, mathematicians and computer scientists have extended the decimal representation of π to many trillions of digits. Many equations from trigonometry and geometry rely on π, especially those concerning circles and spheres. A transcendental number, π is one of the most widely known mathematical constants. (Full article...)