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Richard Feynman was one of the most famous and respected theoretica...
Quantum Field Theory (QFT) is the natural extension of Quantum Mech...
Feynman's Nobel Lecture can be read [here](http://www.nobelprize.or...
Los Alamos was filled with remarkable physicists that deeply influe...
$$ -\frac{i\hbar}{\psi}\frac{\partial \psi}{\partial x}= -\frac{i\...
The Euler-Lagrange equation imposes conditions on the Lagrangian $L...
$$ \frac{\partial L}{\partial x}= \frac{\partial (K(v)-U(x))}{\par...
Since the generalized coordinates are independent $$ \frac{\parti...
The idea here is that Quantum Mechanics (QM) contains Classical Mec...
Herbert Jehle was a german physicist that became known for his work...
Now if we use the same approach for quantum mechanics as we did for...
Huygens' principle can be seen as a consequence of the homogeneity ...
$e^x = \sum_{k=0}^{\infty} \frac{x^k}{k!}$ and so the first order e...
This derivation shows not only Feynman's mathematical ability and i...