Recently Published
Minkowski Functionals: Measuring the Shape of the Universe
A first-principles guide to Minkowski functionals: from 'what is shape?' through Hadwiger's theorem, curvature, the Steiner inflation formula, and the Hermite-ladder Gaussian predictions, to measuring non-Gaussianity in cosmology. Physical analogies (a flooding landscape), full derivations, symbolic checks in SymPy and WolframScript, numerical checks in Python and Julia, and an interactive 3D water-level widget.
Grassmann Algebra: Multiplying with Area and Orientation
A friendly, visual introduction to Grassmann (exterior) algebra: the wedge product, bivectors, orientation, multivector grades, and the tensor-algebra quotient definition — with runnable SageMath and SymPy code. The first part of a mini-series leading to Clifford algebras and spinors.
The Physics of Neutrinos: Chirality, Helicity, and Parity Violation
A fascinating exploration into this topic...
A Pedestrian's Guide to FORM for Particle Physics (via Julia)
Tutorial for learning FORM.