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The Doppler Effect.
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∙ 15y ago
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Why blue ink is red?
blue ink is blue... not red
What is the definition of redshift?
Due to the Doppler effect, the faster a body moves away from you the larger its wavelength - meaning it tends to get more red. It was discovered that the further away a galaxy is from us, it is moving faster. So large redshift means a galaxy that is very far away.
What does the term blue shift refer to?
It refers to an increase in frequency (and decrease in wavelength) of light or other electromagnetic waves, if the object that emits the waves is moving towards us. The opposite is REDSHIFT, which happens when the object moves away from us.
Does blue or red have a higher frequency?
blue. red is the lowest
My car is red or my shirt is blue My car is not red Therefore my shirt is not blue?
If the car isn't red then the shirt IS blue.
What happens to the frequency of light and its colour when objects travel towards you and away?
It will shift towards red ( becomes lower) as it moves away and towards blue as it approaches.
How is the red shift different than the blue shift?
Radiation from a source moving away from the observer is red-shifted. Radiation from a source moving towards the observer is blue-shifted.
What is the color of shark's blood?
mucc like ours it is red going away from the heart and blue coming towards the heart.
Why are the spectra of galaxies shifted towards the red end?
Because - in most cases - they are moving away from us.However, the Andromeda Galaxy is blue shifted showing it is moving towards us.
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.
Observation of the shift of a stars spectrum toward the red or blue enables us to determine the stars?
The star's velocity (away from us, or towards us).
What turns red in the red shift?
light is put into a spectrum from red to blue. red shift is when a star is moving away from us so fast that the light waves stretch moving it up the spectrum, so up towards infared
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.
When the absorption line of a galaxy shift toward the blue end of the spectrum it means that the galaxy is?
It means the heading towards us, red means it is moving away from us.
What is the difference between purple and magenta?
Purple gradients towards blue. Magenta gradients towards red.
What color is blood going to the heart?
When the blood is going to the heart it is blue. When it is going away from the heart, it is red.
Why does the Spanish soccer team wear blue?
Their home uniform is red, their away is the blue
