Apr 13, 2026 · Both Minkowski spacetime and Schwarzschild spacetime are vacuum spacetimes. They have the same energy-momentum but different boundary conditions. Boundary conditions can also …

Nov 25, 2007 · The discussion revolves around finding the derivative of the volume of a cone, specifically in the context of related rates problems in calculus. Participants explore the implications …

Feb 14, 2024 · The discussion centers on the biographies, history, and philosophy of physicists, with participants sharing various articles and reflections on lesser-known figures in the field. The scope …

Apr 10, 2026 · Ayyyyo! Science nerd here stopping by to check out what's going on in the physics realm and answer some questions I need answers for that will really help with my project. The project is …

Apr 11, 2026 · I want to describe physically the thermal response of dentin under laser-induced shock waves. Dentin is not homogeneous. It consists of a stiff hydroxylapatite lattice and a softer, …

Mar 23, 2026 · I thought the graticule was placed in the eyepiece so is not subject to the full magnification?

Mar 30, 2026 · For me it's Alan Holdsworth, the most respected fusion guitarist. Almost every time I think, "I should be liking this. But I don't"

Aug 29, 2025 · In Dirac's Principles of Quantum Mechanics published in 1930 he introduced a "convenient notation" he referred to as a "delta function" which he treated as a continuum analog to …

Apr 4, 2026 · Hi I was wondering what determines whether the Graviton(assuming they exist) get absorbed or pass through an object?

Feb 16, 2025 · I'm trying to resolve two separate fatal errors in my MCNP deck. One is claiming that I'm mixing atom and weight fractions within a single material card, which I'm clearly not if you take a …