Lecture Physics A2: Einstein’s special relativity - PhD. Pham Tan Thi present the content statement for special relativity, Reference Frame and Inertial Frame, newton relativity or Galilean invariance/transformation, twin paradox, . | Einstein s Special Relativity Pham Tan Thi . Department of Biomedical Engineering Faculty of Applied Sciences Ho Chi Minh University of Technology Contents Statement for Special Relativity Reference Frame and Inertial Frame Newton Relativity or Galilean Invariance Transformation A need of Ether a Medium for propagating Light Michelson-Morley Experiment Lorentz - FriztGerald Proposal The Problem of Simultaneity Lorentz Transformation Consequence of Lorentz Transformation Twin Paradox Classic Picture for Relative Motion Consider a Situation Reference 1 Reference 2 Consider a Situation Reference 1 Speed of light From the girl s point of view on the platform that light would not look like it is going faster than the speed of light. It would just look like it is moving at exactly the speed of light Classical and Modern Physics Classical Physics Modern Physics Large Slow moving Object Small Fast moving Object Newtonian Mechanics Relativistic Mechanics Electromagnetism and Waves Quantum Mechanics Thermodynamics 10 of c Below 10 of the speed of light c classical mechanics holds relativistic effects are minimal Above 10 relativistic mechanics holds more general theory SPECIAL THEORY OF RELATIVITY Aims to answer some burning questions Could Maxwell s equations for electricity and magnetism be reconciled with the laws of mechanics Where was the ether History Albert Einstein surprised the world in 1905 when He theorized that time and distance cannot be measured absolutely They only have meaning when they are measured relative to something Einstein published his theory in two steps Special theory of relativity 1905 How space and time are interwoven General theory of relativity 1915 Effects of gravity on space amp time What is relative in relativity Motion all motions is relative Measurements of motion and space amp time make no sense unless we are told what they are being measured relative to What is absolute in relativity The laws of nature are the same for .
