How do you explain the principle of the red shift?

Answer 1

It indicates if a object is moving away.

Answer 2

A red shift is when a object's light turns red because of the Doppler effect.

The Doppler effect

The Doppler Effect is when the light waves get longer or shorter because of distance. For Example: Most stars and galaxies are red shifted because they moving away from us. That's gives a red shift because the light waves get longer. On object only becomes blue shifted when it is moving towards us like the Andromeda galaxy.

Answer 3

The principle of red shift is based on the observation that objects moving away from an observer exhibit a shift to longer (redder) wavelengths in their light spectrum due to the universe's expansion. This phenomenon is a key tenet of the Big Bang theory, providing evidence for the universe's ongoing expansion.

Answer 4

There is a light source far away that we can see. It emits a gamma ray but by the time it gets here, we see it as a microwave or something similar. This indicates that the space between the source and us has expanded, stretching out the original light wave. Ever heard of the Doppler effect?

Answer 5

Because the Universe is expanding, far-away galaxies move away from us. That makes the frequency of the light from those galaxies change towards the red part of the spectrum (if we talk about visible light) - in general, become less energetic. This is called redshift. (The redshift is one of the major arguments for the expansion of the Universe.)

Answer 6

If you looking for a simple layman answer, then redshifts describes the Doppler effect brought about by an expanding universe. The light sources are moving away from us. Hence the radiation appears red. This is a sure sign that the stars are getting further and further apart from each other and from us.

Answer 7

A red shift indicates that the object emitting the wave in a medium is moving away from the observer. A red shift and blue shift are both what is called the Doppler effect: the raising or lowering of an wave's frequency because of motion. For example, imagine a situation where an ambulance with its siren on approaches you, passes you and then pulls ahead of you. You will here the frequency of the siren drop when it is pulling ahead of you compared to when it is approaching you. This is an example of a Doppler effect. The drop in frequency when the ambulance pulls away from you is an example of a red shift.

Now, the term "red shift" applies best to light: when an object emitting light moves away from us, the frequency of that light will drop (turn "redder"). This is because the speed of light is a constant, no matter where you measure it, no matter what motion you are in....(Einstein: Special Relativity)

Answer2:

Red shift can be the balance of centripetal force and centrifugal force due to gravity and nucleur attraction. vp/r = cDEL.P= cp/r cos(P) thus v/c= cos(P). This is red shift that does not involve expanding motion in that the centripetal force vp/r is balanced by the centrifugal force cp/r cos(P), net no force. This gives the stable orbit. The vector force cp/r has angle such that cp/r cos(P) balances the force toward the origin. The particle moves around the orbit. This is red shift.

Answer 8

Red shift happens as the distance between an observer and an emitting body increases. Because of the velocity away from the observer, the wavelength increases, or shifts toward the red end of the spectrum.

Answer 9

Red Shift is a colour spectrum (a strip of light containing the colours of the rainbow) that has black lines moving across it that prooves galaxies in space are moving further and further away since the Big Bang.

You look at the stars. You expect to see, for instance, the hydrogen spectrum at this and that frequency. Instead, you see the correct pattern of lights, but they are misplaced. They are too low in frequency. They are displaced (shifted) towards the red end of the spectrum. Apparently, however, this does not prove that the galaxies are moving away from us! It may suggest that, but there are other reasons for the red shift.

Answer 10

Red shift and blue shift refer to the change in the frequency of light when an object shifts away (red) from and towards (blue) the center of potential energy. Red shift and blue shifts show up in light spectra patterns from objects.

There are two kinds of shifts, gravitational and electric due to the gravitational ( -GmM/r) and electrical potential energy (-e^2/4pi r). The shift is measured by the cos(x) of the angle between the radius of the potential center and the velocity of the object with respect to the center. If the angle is 90 degrees there is no shift or the shift is zero, cos90=0.

If the angle is less than 90 degrees the shift is red and the object is moving away from the center. If the angle is greater than 90 degrees the shift is blue and the object is moving towards the center. At 0 degrees the object is radially moving away from the center and at 180 degrees the object is radially moving towards the center. At 90 degrees the object is moving transverse to the center.

The redshift is the ratio of the 'speed v' of the object to the 'speed c' of light and is designated by z=v/c = cos(x). The gravitational redshift is z=v/c=sqrt(GM/rc^2). The electrical redshift is z=v/c=e^2z/2nh = 7.2e-3/n = alpha/n = Fine Structure Constant.

The redshift indicates that the direction of the object velocity is away from the center, it indicates the object is in equilibrium between the centripetal force and the centrifugal force. The redshift is mis-understood by scientists thinking it indicates an expanding Universe.