Doppler Effect and The Big Bang

Description
The lecture begins with Doppler Effect of sound. Difference between the cases when observer moves away from source or towards the source is explained.For e.m. waves the frequencies for Doppler effect has been mentioned as they can be calculated using relativistic consideration.Other topics are Red shift,Blue Shift and Hubble's law.Actual values for these shifts has been cited.Red shift data for a particular galaxy has been used to calculate its distance.Spectra of galaxy is shown.Big Bang theory and age of universe has been discussed.Research findings about Quasers are analysed. An expanding balloon shows how the universe expands and objects move away from each other.Velocity of receeding galaxies is calculated .

Prof. Walter Lewin, 8.02 Electricity and Magnetism, Massachusetts Institute of Technology: MIT OpenCourseWare), http://ocw.mit.edu (Accessed June 27, 2011). License: Creative Commons BY-NC-SA: http://ocw.mit.edu/terms/#cc