Notes: Generalized harmonic form of Einstein’s equations from a gauge-fixed action
The generalized harmonic formulation can be derived by adding a gauge-fixing term to the Einstein-Hilbert action
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Poincaré section clicker for the double pendulum
Interactive toy for understanding Poincaré sections and chaos
Location of the last stable orbit in Kerr spacetime
The dividing line between bound and plunging orbits is an algebraic variety
qnm: A Python package for calculating Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients
qnm is an open-source Python package for computing the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coeff...
Titanium Physicists podcast episode 80 External link
Hear me, Katie Bouman, and friends talk about how to snap a picture of a black hole with the Event Horizon Telescope!