Comments on: What two physical effects, are required in order to understand how we measure the speed at which galaxies a?

Comments on: What two physical effects, are required in order to understand how we measure the speed at which galaxies a? http://www.astronomag.com/galaxies/what-two-physical-effects-are-required-in-order-to-understand-how-we-measure-the-speed-at-which-galaxies-a Sat, 31 Jul 2010 23:27:59 -0500 http://wordpress.org/?v=2.8.4 hourly 1 By: OldPilot http://www.astronomag.com/galaxies/what-two-physical-effects-are-required-in-order-to-understand-how-we-measure-the-speed-at-which-galaxies-a/comment-page-1#comment-5408 OldPilot Fri, 05 Feb 2010 09:24:59 +0000 http://www.astronomag.com/galaxies/what-two-physical-effects-are-required-in-order-to-understand-how-we-measure-the-speed-at-which-galaxies-a#comment-5408 Best guess what your teacher is looking for: Speed of Light Doppler shift of the wavelengths of light from the galaxy (Red Shift) I could be wrong, but that is all I need.<br><b>References : </b><br> Best guess what your teacher is looking for:

Speed of Light

Doppler shift of the wavelengths of light from the galaxy (Red Shift)

I could be wrong, but that is all I need.
References :

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