Instructions: To add a question/comment to a specific line, equation, table or graph simply click on it.
Click on the annotations on the left side of the paper to read and reply to the questions and comments.
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...