In physics, M-theory is a unification of what were originally thought to be five distinct versions of superstring theory. The possibility of such a theory was first conjectured by Edward Witten(pictured) at a string theory conference at the University of Southern California in 1995, initiating a flurry of research activity known as the second superstring revolution. Work by several physicists showed that the original five theories could be related by transformations called S-duality and T-duality. Witten's conjecture drew on these dualities and on a field theory called eleven-dimensional supergravity. Some physicists believe that a complete formulation of M-theory could provide a framework for developing a unified theory of all the fundamental forces of nature. Current directions of research in the theory include matrix theory and gauge/gravity duality. According to Witten, the M in M-theory can stand for "magic", "mystery", or "membrane" according to taste, and the true meaning of the title should be decided when a more fundamental formulation of the theory is known. (Full article...)
... that it is believed that all prints of the 1940 Argentine film Canto de amor, starring Nelly Omar, were destroyed?
... that Die Freundschaft (Friendship), founded in 1919, was the world's first gay publication to be sold openly at newsstands?
... that rubber farming is a primary source of income and livelihood for the majority of the residents in Muara Bungo, a city in Jambi province, Sumatra, Indonesia?
... that Paddy McGuinness struggled with the two-a-day recording format of Benchmark and found himself phoning Bradley Walsh to ask how it was possible?
... that the fossil scorpion fly Holcorpa was described in 1878 but the family Holcorpidae not until 1989?
... that fashion illustrator Joe Eula once walked out of an Yves Saint Laurent couture show, shouting that it had been terrible?
... that the first 36 holes of the Southend Tournament were played in May but the final 36 holes were played in September?
2002 – An earthquake measuring 6.5 Mwstruck a region of northwestern Iran, killing at least 261 people and injuring 1,300 others, and eventually causing widespread public anger due to the slow official response.
This Wikipedia is written in English. Started in 2001 (2001), it currently contains 4,898,322 articles.
Many other Wikipedias are available; some of the largest are listed below.
.jpg)
