102 citations · 357 across the 23 of their papers we have counts for
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gr-qc2016★ 4 cited
Dust ball physics and the Schwarzschild metric
Klaus Kassner
A physics-first derivation of the Schwarzschild metric is given. Gravitation is described in terms of the effects of tidal forces (or of spacetime curvature) on the volume of a sma…
gr-qc2016★ 5 cited
Why ghosts don't touch: a tale of two adventurers falling one after another into a black hole
Klaus Kassner
The case for the utility of Kruskal-Szekeres coordinates in classroom made by Augousti et al. in this journal (Eur. J. Phys. 33:1--11, 2012) is strengthened by extending their disc…
gr-qc2016★ 5 cited
A Physics-First Approach to the Schwarzschild Metric
Klaus Kassner
As is well-known, the Schwarzschild metric cannot be derived based on pre-general-relativistic physics alone, which means using only special relativity, the Einstein equivalence pr…