“It is no use asking for the impossible, such as, say, the exact wiring diagram for a cubic millimeter of brain tissue and the way all its neurons are firing,” Crick wrote in Scientific America ...

Of particular interest to astronomers is the nebula's faint, Venn-diagram-like structure — two rings of ejected material shaped by the gravitational influence of the central stars. Scientists ...

The vagina is a flexible tube that joins the uterus to the vulva. Vaginas are usually around 3 inches long but may vary widely in color, size, and shape. The vaginal opening is the part of the ...

The FEYNMAN DIAGRAM PROJECT is a Python-based tool that takes a particle physics reaction (e.g. e+ e- -> mu+ mu-), checks whether the process is physically allowed, and generates a LaTeX TikZ-Feynman ...

New Delhi: Among those who attended Richard Feynman’s 60th birthday in 1978, one was an Indian-origin theoretical physicist who saw the legendary American physicist as an idol. Yogendra Narain ...

One of the first to arrive, in March 1943, was Richard Feynman, another New Yorker, who had recently earned his PhD at Princeton University. “The beauty of the scenery, for a person from the ...

\draw (-2.25,0) node[left] {$\varphi_a$} -- (2.25,0) node[right] {$\varphi_b$}; \draw[->,yshift=5pt] (-2,0) -- (-1,0) node[midway,above] {$p_1$}; \draw[->,yshift=5pt ...

ABSTRACT: In quantum mechanics, particles have a new type of probabilistic property, which is quantum wave probability. Corresponding to this new probability, the particle has the property of quantum ...

New Delhi: Among those who attended Richard Feynman’s 60th birthday in 1978, one was an Indian-origin theoretical physicist who saw the legendary American physicist as an idol. Yogendra Narain ...

In particular, radiative corrections (described by one- and multi-loop Feynman diagrams) have to be considered. Although a growing number of physicists are involved in such projects, multi-loop ...

The topics covered are Feynman diagram rules, microscopic mean-field theories (Hartree-Fock and Kohn-Sham theories, natural orbitals), many-body perturbation theory, large-scale diagonalization ...