What is relativistic mass and why it is not used much?
Aug 9, 2015 · The concept of relativistic mass In special relativity, the expressions for the total energy and momentum of an object can be written as where and is the invariant mass (or rest …
Klein-Gordon equation in the nonrelativistic limit - Physics Forums
Dec 9, 2025 · Physicists, quantum mechanics students, and researchers interested in the foundations of relativistic quantum mechanics and the implications of the Klein-Gordon equation.
Need tips to understand Relativistic Energy in Special Relativity
Jan 1, 2026 · Investigate the implications of relativistic energy on particle physics and cosmology. Students and professionals in physics, particularly those focusing on special relativity, as well …
How Does Newton's Second Law Adapt to Relativistic Speeds?
May 7, 2007 · The discussion centers on the adaptation of Newton's Second Law to relativistic speeds, emphasizing that traditional formulations become inaccurate as velocities approach …
What Does a Non-Relativistic Approach Mean in Quantum …
Jun 29, 2015 · The discussion focuses on the non-relativistic approach in quantum mechanics, specifically in calculating the orbital velocity of an electron in the 3rd orbit of He+ using the …
Relativistic Velocity: Speed Limits & Ranges Explained
Oct 26, 2004 · Relativistic velocity refers to speeds where relativistic effects become significant, particularly when the Lorentz factor, γ, is substantially greater than 1. For instance, at v=0.1c …
How does this derivative work? And why the speed of light remains?
Dec 27, 2025 · Explore the concept of invariant mass in special relativity Investigate applications of relativistic equations in particle physics Students and professionals in physics, particularly …
Relativator (Circular Slide-Rule) – Simulated with Desmos
Sep 2, 2025 · "The Relativator" (a circular slide-rule for relativity and particle physics) has been implemented as an interactive simulation in Desmos.
Action in Relativity: Non-Relativistic vs Relativistic Particles
Jun 24, 2016 · The discussion clarifies the formulation of action in relativity, specifically distinguishing between two expressions: S = ∫ ds for non-relativistic particles and S = -mc ∫ ds …
Relativistic vs. non-Relativistic Space-Time Perspectives Relativity equations examine Relativistic distortions from one perspective, the