He concluded that all of space was expanding.
Answer2:
Hubble did not conclude that all space was expanding! Hubble concluded that he did not know what the redshift was.
1. "Red shifts represent Doppler effects, physical recession of the nebulae, or the action of some hitherto unrecognized principle in nature."
2. If the nebulae are stationary, the law of red shifts is sensibly linear ; red shifts are a constant multiple of distances. In other words, each unit of light path contributes the same amount of red shift.
3. On the other hand, if the nebulae are receding, and the dimming factors are applied, the scale of distances is altered, and the law of red shifts is no longer linear. The rate of expansion increases more and more rapidly with distance. The significance of this result becomes clear when the picture is reversed. Light that reaches us today left the distant nebulae far back in the dim past - hundreds of millions of years ago. When we say that the rate of expansion increases with distance, we are saying that long ago, the universe was expanding much faster than it is today ; that, for the last several million years at least, the rate of expansion has been slowing down. Therefore, the so-called "age of the universe," the time interval since the expansion began, is much shorter than the 1800 million years suggested by a linear law of red shifts. If the measures are reliable, the interval would be less than 1000 million years - a fraction of the age of the earth and comparable with the history of life on the earth. The nature of the expansion is permissible and, in fact, specifies certain types of possible worlds. But the time scale is probably not acceptable. Either the measures are unreliable or red shifts do not represent expansion of the universe.
Hubble admits to not knowing what the red shift is, he considers it a. Doppler effects, b. physical recession of the nebulae, or c. the action of some hitherto unrecognized principle in nature. The answer is c. the hitherto unrecognized principle in nature. The short answer is the red shift is the inverse of the refreaction coefficient, v/c= 1/n. The red shift is derived from the so-called "dark Energy", cP = cmV. Current Theories do not account for this because they do not recognize vector energy cP and Quaternion energy,
W = -vh/l + cP = -vp + cP
The red shift comes from the Continuity Condition where the centripetal force vp/r is balanced by the centrifugal force cDEL.P= -cp/r cos(P) thud
vp/r=cp/r cos(P) gives
v/c=cos(P) = 1/n
This is the hitherto unrecognized prijnciple of nature, the Divergence of the vector energy produces the anti-gravity force (centrifugal ) that prevents the gravitational collapse, the earth from falling into the sun and the electrons from falling into the nucleus. Newton and Einstein did not consider the energy, cP, associated with momentum P, that is the "Dark Energy". This energy cP is the particel energy with different velocities v=(GM/r)^.5 for mass; v=Alpha Z c for electrons; and v=c for photons. Mass n= c/v; electrons n= alpha Z; and photons n=1.
... expanding. The redshift is attributed to the Doppler effect, meaning that those galaxies are receding, or getting away, from us.
The expansion of the Universe results in the light from faraway galaxies being redshifted. This is called the "cosmological redshift"; it can be compared with the Doppler effect (which also causes a redshift), but the details are somewhat difference.It is an observed fact that most galaxies are redshifted; the explanation that seems most reasonable is that it is caused by the cosmological redshift. This means that space itself is expanding.
It means that the light from galaxies is losing energy. The only reasonable explanation for this is the cosmoligical redshift - that is, that the Universe is expanding.
The most plausible explanation for the redshift is that galaxies are moving away from us. This is similar to the Doppler effect, but it is normally believed that space itself is expanding, so the situation is a bit different from the "normal" Doppler effect.
Edwin Hubble didn't discover redshift. What he did was make a systematic statistic of redshifts and blueshifts, of known galaxies. What this demonstrated was that the Universe is expanding.
The Big Bang theory was set up to explain observations - for example, the redshift of distant galaxies, which is usually interpreted to mean that the galaxies move away from us.
because the universe is expanding.
Some nearby galaxies move towards us (blueshift), some move away from us (redshift). Galaxies that are farther away all move away from us (redshift); this means that the Universe is expanding.
The redshift of distant galaxies, and the fact that the degree of redshift depends on the distance between us and those galaxies. What we observe can only be explained by Hubble Expansion.
The redshift of distant galaxies.
It will be impossible for the Sloan Digital Sky Survey to map and redshift all 100 billion galaxies in the observable universe.
Most galaxies exhibit a redshift, meaning that they move away from us.
The redshift of distant galaxies is believed to be a result of the Doppler effect - in other words, the light is shifted towards lower frequencies ("redshifted") due to the fact that the galaxies move away from us.
Redshift; the generally accepted explanation for the redshift of distant galaxies is that it is cosmological redshift, caused by the expansion of the Universe. This is somewhat related to the idea of the Doppler effect.
Redshift: The only reasonable explanation for the redshift is that most galaxies are moving away from us.As for the cosmic background radiation and the chemical composition, both of these closely match what is expected from the models about the Big Bang.
One important clue is the Doppler effect - the redshift of distant galaxies. It turns out that the greater the distance to a galaxy, the faster it moves away from us.One important clue is the Doppler effect - the redshift of distant galaxies. It turns out that the greater the distance to a galaxy, the faster it moves away from us.One important clue is the Doppler effect - the redshift of distant galaxies. It turns out that the greater the distance to a galaxy, the faster it moves away from us.One important clue is the Doppler effect - the redshift of distant galaxies. It turns out that the greater the distance to a galaxy, the faster it moves away from us.
This redshift is a strong indication that the Universe is expanding. The only reasonable explanation of this redshift is the Doppler effect, and this means that the galaxies are moving away from us. The greater their distance from us, the faster they move away.