The height of the pyramid of Cheops - Physics Forums
Dec 9, 2020 · The discussion revolves around the height-to-base ratio of the Pyramid of Cheops, exploring different mathematical interpretations and historical measurements. Participants examine …
Great Pyramid of Cheops (Center of Mass Problem) - Physics Forums
Oct 15, 2005 · The discussion revolves around calculating the center of mass and the work required to lift the blocks of the Great Pyramid of Cheops, focusing on its geometric and physical properties. The …
What Exactly is Dirac's Delta Function? - Physics Forums
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 …
Feynman's bug (hot plate) in generality • Physics Forums
Feb 13, 2026 · A textbook (in German language: Sexl-Urbantke, Gravitation und Kosmologie) says that intrinsic curvature of spacetime is a definition. The alternative is to postulate a flat spacetime …
Demystifying the Often Misunderstood Bernoulli’s Equation
Dec 3, 2018 · The goal of this post is to present Bernoulli's equation, its derivation based on energy conservation, and interpretations based on both momentum and energy conservation, and its …
Heat Flow Through Framed Wall - Physics Forums
Feb 15, 2026 · Heat transfer = Flow of energy through a material (as conduction). Temperature difference (or delta T) = It induces thermal energy flow from a hot source to a cold sink. Transfer area …
What is the Exact Solution to 0.739085? - Physics Forums
Apr 1, 2005 · The discussion revolves around the exact expression of the solution to the equation cos (x) = x, which is approximately 0.739085. Participants explore whether this solution can be represented …
How to Calculate Center of Pressure (hf) for a Tank?
Dec 19, 2024 · SUMMARY The center of pressure (hf) for a tank is defined as the point where a single supporting force would balance the total fluid force acting on the opposite side. This concept is …
What is the significance of Rn and Rm in Calculus?
Feb 7, 2005 · The discussion revolves around the significance of Rn and Rm in the context of linear algebra, specifically regarding matrix operations and their relationship to vector spaces. Participants …
Calculating Routes on a Grid: Using Combinations and Pascal's Triangle
Apr 22, 2012 · The problem involves calculating the number of routes on a rectangular grid from point A to point B, specifically using combinations and considering routes that pass through a specific …