Shoresh Shafei 's Personal Webpage

Physics

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The best way to realize you understand something is to write about it! Sometimes, I think that I know how to solve a specific problem. However, when I treat it deeply, I realize that there is something wrong!! Maybe I dont remember the point or even I didnt learn it properly. So, I strart working on to discover the point! The files below are collections of my discoveries!! very basic topics which more have been prepared for my own. Nevertheless  you may find them interesting .
Others are my ideas on some topics or my short translations into Persian.

Quadropole moment of two charged rings

Dirac Delta Function

why del^2(1/r)=-4pi delta (r)

Partial Differential

Conference Advantages

Einstein and the poet

Max Planck Noble Speech