Southwestern Archaeology, rare books, Western Americana, antiquarian books, old maps, antique photographs, Native American Indians, Colorado history, Western American exploration. MT. GOTHIC TOMES AND RELIQUARY

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"... But never again as during that all too short period when he and I were one person, when the fulfilled future and the wistful past were mingled in a single gorgeous moment -- when life was literally a dream...." F. Scott Fitzgerald, from 'Early Success,' The Crack Up, October 1937

$\frac{\partial f}{\partial t}+ v \frac{\partial f}{\partial x}+ \frac{F}{m} \frac{\partial f}{\partial v} = \frac{\partial f}{\partial t}\left.{\!\!\frac{}{}}\right|_\mathrm{collision}$

Boltzmann equation

$\left( c \boldsymbol{\alpha}\cdot \mathbf{\hat{p}}+\beta mc^2 \right ) \psi = i\hbar\frac{\partial \psi}{\partial t}\,\!$

Dirac equation