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  1. 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 mass) of the …

  2. Relativistic Space Travel: Optimizing Proper Time [Project Hail Mary]

    Mar 5, 2026 · Warning: Minor spoilers for the book Project Hail Mary ahead. A ship has travelled to Tau Ceti (11.9 light years from Earth). The ship uses light as propulsion, and effectively converts the fuel …

  3. Relativistic vs. non-Relativistic Space-Time Perspectives Relativity equations examine Relativistic distortions from one perspective, the

  4. Best book on relativistic QM and QFT - Physics Forums

    Sep 25, 2017 · The discussion centers around recommendations for textbooks on Relativistic Quantum Mechanics and Quantum Field Theory (QFT). Participants share their experiences with various texts …

  5. Calculating Relativistic Phase and Group Velocity

    Sep 29, 2017 · The discussion revolves around the calculation of phase and group velocities in both classical and relativistic quantum mechanics. Participants explore the implications of using kinetic …

  6. How Can We Derive the Relativistic Rocket Equation?

    May 27, 2021 · The discussion revolves around deriving the relativistic rocket equation, which is an extension of the Tsiolkovsky rocket equation for scenarios involving relativistic speeds. Participants …

  7. What Does a Non-Relativistic Approach Mean in Quantum Mechanics?

    Jun 29, 2015 · The discussion revolves around understanding the implications of a non-relativistic approach in quantum mechanics, specifically in the context of calculating the speed of an electron in …

  8. Are Relativistic Mass Calculations Still Relevant in Modern Physics?

    Dec 11, 2010 · Discussion Overview The discussion revolves around the relevance of relativistic mass calculations in modern physics, particularly in the context of particle physics and the definitions of …

  9. Relativistic Electrons: Kinetic Energy & 20keV Threshold

    Apr 28, 2005 · The discussion revolves around the kinetic energy threshold at which electrons are considered to exhibit relativistic speeds. Participants explore various interpretations of "relativistic" in …

  10. What is m in Kinetic Energy? Relativistic mass or Rest mass?

    Jul 24, 2023 · The discussion revolves around the definitions and implications of mass in the context of kinetic energy and total energy for particles moving at relativistic speeds. Participants explore …