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

Tirumala septentrionis, commonly known as the dark blue tiger, is a species of butterfly in the danaid subfamily of the family Nymphalidae. It is found in South and Southeast Asia, including the Himalayas to southern India and Sri Lanka, Myanmar and Cambodia. Its upper wing is generally black with some bluish-white semihyaline markings, and its wing span is 80 to 115 millimetres (3.1 to 4.5 inches). This male butterfly of the subspecies T. s. dravidarum was photographed in Kumarakom in the Indian state of Kerala.

Today's featured article Ken "Snakehips" Johnson (10 September 1914 – 8 March 1941) was a swing band leader and leading figure in black British music of the 1930s and 1940s. Born in British Guiana, he was educated in Britain and travelled to New York to immerse himself in the Harlem jazz scene. He returned to Britain and established the Aristocrats (or Emperors) of Jazz, a mainly black swing band, with Leslie Thompson. In 1937 Johnson took control of the band through a legal loophole, causing the departure of Thompson and several musicians. Johnson filled the vacancies with Caribbean musicians, the band's popularity grew, and it changed its name to the West Indian Dance Orchestra. In 1938 the band broadcast on BBC Radio, recorded their first discs and appeared in an early television broadcast. Johnson was considered a pioneer for black musical leaders in the UK. Employed as the house band at the Café de Paris, a German bombing raid in 1941 hit the nightclub, killing Johnson. (Full article...)