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What's the difference between red shifted galaxies and the red ipod?
Galaxies that are far away tend to be more red shifted due to the expansion of the wavelength, so to us, it looks red.
The red ipod I am holding right now is red because it absorbs all color except red, which it bounces to my eye.
What is the difference between red shifted galaxies and red ipod?
If galaxies look blue because the wavelength compressed, why isn't everything we see around us blue? Why isn't my ipod blue since the light wavelength from my ipod to my eye is so short.
1 Answer
- SimonLv 78 years agoFavorite Answer
You aren't serious, are you?
Red and blue shift are just that -- a shift, not everything red or blue. And the shift comes from relative approach or recession; essentially the Doppler effect.
If you move your ipod toward or away from your eye, there will be a shift, too! Just try it.
Source(s): https://en.wikipedia.org/wiki/Redshift