Three Common Misconceptions in General Relativity
نویسندگان
چکیده
We highlight and resolve what we take to be three common misconceptions in general relativity, relating to (a) the interpretation of the weak equivalence principle and the relationship between gravity and inertia; (b) the connection between gravitational redshift results and spacetime curvature; and (c) the strong equivalence principle and the local recovery of special relativity in curved, dynamical spacetime.
منابع مشابه
Expanding Confusion: common misconceptions of cosmological horizons and the superluminal expansion of the universe
We use standard general relativity to illustrate and clarify several common misconceptions about the expansion of the universe. To show the abundance of these misconceptions we cite numerous misleading, or easily misinterpreted, statements in the literature. In the context of the new standard ΛCDM cosmology we point out confusions regarding the particle horizon, the event horizon, the “observab...
متن کاملTwo Common Misconceptions about the Theory of Special Relativity
Two common misconceptions about the theory of Special Relativity that are actively taught in textbooks are discussed. It is shown, first, that the Lorentz transformations are actually transformations of the coordinates of a photon, not the coordinates of a particle as taught by some authors. Secondly, a misconception concerning the relativistic Lagrangian is discussed. It is shown that the curr...
متن کاملBulk Viscous Bianchi Type VI0 Cosmological Model in the Self-creation Theory of Gravitation and in the General Theory of Relativity
In the second self-creation theory of gravitation and in the general theory of relativity, Bianchi type VI0 cosmological model in the presence of viscous fluid is studied. An exact solution of the field equations is given by considering the cosmological model yields a constant decelerations parameter q=constant and the coefficients of the metric are taken as A(t)=[c1t+c<su...
متن کاملTime, Distance, Velocity, Redshift: a Personal Guided Tour
An attempt to answer the question " Can we observe galaxies that recede faster than light " led to a re-examination of the notions of time, distance, velocity and redshift as they occur in newtonian physics, special relativity, general relativity and cosmol-ogy. A number of misconceptions were uncovered. It was found that, once freed of preconceptions of special relativity the above question is...
متن کاملNew Version of General Relativity that Unifies Mass and Gravity in a Common 4D Higgs Compatible Theory
Recent enigmas of astrophysics such as dark energy or accelerating universe need to update General Relativity. A thorough examination of the original Einstein Field Equations (EFE) highlights three inconsistencies concerning the nature of spacetime. Here we solve these inconsistencies. As a consequence, this article proposes a Higgs compatible 4D expression of mass, m= f(x,y,z,t), and a new exp...
متن کامل