2008/09/15 by L. B. Okun · 1 voice
Physics and Astronomy · #physics.class-ph #physics.ed-ph #physics.pop-ph
paper · pdf · doi:10.1070/pu2008v051n06abeh006552
published as Physics-Uspekhi 51 (2008) 622 · 19
arxiv created 2008/09/15 · arxiv published 2008/09/15 · arxiv updated 2009/12/01
It is shown that the most important effects of special and general theory of relativity can be understood in a simple and straightforward way. The system of units in which the speed of light c is the unit of velocity allows to cast all formulas in a very simple form.The Pythagorean theorem graphically relates energy, momentum and mass. The paper is addressed to those who teach and popularize the theory of relativity.