Another important equation in Special Relativity is the Relativistic Doppler Shift. This is an introduction to that equation and we run through a simple example calculating the change in wavelength and frequency from a receding Galaxy relative to Earth. Reference for this information can be found in, Modern Physics, 3rd ed., by Serway, Moses, Moyer.

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In this video we talk about Stokes’s theorem, a generalisation of Green’s theorem to 3D problems.