Worldcon 75 will take place in Helsinki, Finland, 9-13 August 2017. For more information about the convention, including current membership rates, visit http://worldcon.fi.

The Guests of Honor for Worldcon 75 are John-Henri Holmberg, Nalo Hopkinson, Johanna Sinisalo, Claire Wendling, and Walter Jon Williams.

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ABOUT THE WORLD SCIENCE FICTION CONVENTION

Founded in 1939, the World Science Fiction Convention is one of the largest international gatherings of authors, artists, editors, publishers, and fans of science fiction and fantasy. The Hugo Awards, a leading award for excellence in the fields of science fiction and fantasy, are voted on by the Worldcon membership and presented during the convention.

“World Sciencefirst developed this path integral?

A:

The introduction of Chaichan and Demichev 2001 book Path Integrals in Physics: Volume I Stochastic Processes and Quantum Mechanics states:

The notion of path integral (sometimes also called functional integral or integral over trajectories or integral over histories or continuous integral) was introduced, for the first time, in the 1920s by Norbert Wiener (1921, 1923, 1924, 1930) as a method to solve problems in the theory of diffusion and Brownian motion. This integral, which is now also called the Wiener integral, has played a central role in the further development of the subject of path integration.
It was reinvented in a different form by Richard Feynman (1942, 1948) in 1942, for the reformulation of quantum mechanics (the so-called ‘third formulation of quantum mechanics’ besides the Schrödinger