0
"Red shift" is what we call the "away" version of the Doppler Effect; the "towards" version is called "blue shift." With visible light, things that are retreated at high speed look as though they were colored more toward the long end of the spectrum than they really are. Since the longest color we can see is red, we call this redshifting, although the actual color change we see might be from blue to green (blue is the shortest light we can see -- counting indigo, violet and purple as "blues" --and green is in the middle, so we see it best). The Doppler Effect is also the thing that makes a siren seem to change pitch as it approaches, passes and then leaves your position, something like "iiiiiieieeieeeieeeeeeoeooeooooo oo oo ooo oooo". Since we don't see sound, we don't generally use color words to describe it, but that "iiiiii" portion is the blue shift, the "eeeeee" is the regular siren sound, and the oooo o o o oo oooo" is the redshift.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What is Corundum's physical characteristics?
its characteristics are hard and colorful when its red they call it ruby!
What does it mean when the color of an object in the universe shifts toward red?
It is the color of the light shift. either red or blue, from an object, not the object itself, that determines if it is moving away( RED) from us or moving toward us (BLUE).
What was one form of evidence used to support the Big Bang theory?
The observation that red shifts of distant galaxies gets greater the further away the galaxies are.
When the absorption lines of a galaxy shifts toward the blue end of the spectrum it means that that the galaxy?
It means the heading towards us, red means it is moving away from us.
Does mars have a any other special characteristics?
Yes. Its known as the 'Red Planet' due to the fact it looks Red when viewed through a telescope
What evidence do we have to prove that galaxies rotate?
Doppler red shifts and blue shifts of light from the stars in the galaxies.
What will happen if the red and blue shifts of planets in the world disappeared?
First of all, we don't see blue shifts, just red shifts, meaning an expanding, not contracting universe. Second of all, these red shifts come from stars in the universe, not planets in the world. What would happen if the red shifts disappeared? Well, there'd be a whole bunch of excited scientists, that's for sure, because that would mean that the universe will have gotten as big as it's going to get and is now going to start collapsing back onto itself.
Are Large red shifts within galaxies or between them?
Between them.
What part of the spectrum does the spectrum of distant light shift to?
It is called red-shift. It shifts to the longer-wavelength, shorter-frequency direction. For example, visible light shifts towards the infra-red area of the spectrum.
What is demograper?
A demographer studies shifts in the characteristics of populations. They study birth rates, death rates, and the age of the population.
What are characteristics in science?
Characteristics are the properties of an object. For example, a shiny, red ball has three given characteristics: its texture is shiny, its colour is red, and its shape is spherical.
What are the characteristics of a strawberry?
It is red and tasty.
What are the characteristics of heart?
color red
What is the characteristics of ketchup?
because it is red
What is Corundum's physical characteristics?
its characteristics are hard and colorful when its red they call it ruby!
Does the colour of a galaxy reflect its distance away from the earth?
No, however, we can determine whether a galaxy is moving towards or away from us, by looking at the shift in its spectrographic analysis. There are "red shifts" and "blue shifts" in spectrographic results. "Blue shifts" indicate that a galaxy is moving towards us, because the wavelength of the light emitted by the galaxy is compressed, causing it to shift to the blue end of the colour spectrum. "Red shifts" indicate that a galaxy is moving away from us, because the wavelength of the light emitted by the galaxy is being stretched towards the red end of the colour spectrum.
How does red shift differ between galaxies close to us and ones which are further away?
Generally, the galaxies that are further away will have the larger red shifts.
