:: : I have two problems with the last section ( 1 ) I think it is inaccurate in places, and doesn't provide any comparison between the three astronomical redshifts, and " other " uses of redshifts ( 2 ) Yes, I feel that some " types " of redshift are omitted despite being a significant minority, including " Intrinsic redshift ", " Redshift quantisation ", " Non-cosmological redshift ", " Non-Doppler redshift ", " Wolf effect"