$ \gdef\vec#1{\mathbf{#1}} \gdef\d{d} $
"I am myself the subject of my blog." Falsely attributed to Michel de Montaigne.
Analytical Optics
A Dubiously Simple Proof of the Insolubility of Symmetric Groups
Notes on Landau and Lifshitz: Conservation Laws
Comparing Empirically Identical Theories
Notes on Landau and Lifshits: The Equations of Motion
Optical Demonstrations
The Hypotenuse of a Recurrence Triangle
Three-Valued Logic in the λ-Calculus
A Proof of Lemma XIV of the First Book of Newton's Principia