B Which statement is more accurate? (Hubble's redshift vs. Hubble's law)

louislaolu
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TL;DR Summary
Hubble's redshift vs. Hubble's law
A. The two great cosmological discoveries of this century, Hubble's redshift and the cosmic microwave background, have made the Big Bang theory the most credible theory of the origin of the universe so far.
B. The two great cosmological discoveries of this century, Hubble's law and the cosmic microwave background, have made the Big Bang theory the most credible theory of the origin of the universe so far.
Which of the above two statement is more accurate?
 
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Is this homework ?

:smile: perhaps flip a coin ?

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BvU said:
Is this homework ?

:smile: perhaps flip a coin ?

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:smile: Actually I am trying to figure out why Hubble's redshift was replaced with Hubble's law when the sentence containing the former was translated from Chinese into English.
 
I see. Most likely there is no specific reason. Who knows, except perhaps the translator.

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Hubble's redshift is not a standard term in the field. Is probably why.
 
louislaolu said:
:smile: Actually I am trying to figure out why Hubble's redshift was replaced with Hubble's law when the sentence containing the former was translated from Chinese into English.
Hubble's law is the standard phrase in English.
 
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I prefer "Hubble–Lemaître law" to "Hubble's law" since Georges Lemaître discovered and published the law 2 years prior to Edwin Hubble.
 
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louislaolu said:
TL;DR Summary: Hubble's redshift vs. Hubble's law

A. The two great cosmological discoveries of this century, Hubble's redshift and the cosmic microwave background, have made the Big Bang theory the most credible theory of the origin of the universe so far.
B. The two great cosmological discoveries of this century, Hubble's law and the cosmic microwave background, have made the Big Bang theory the most credible theory of the origin of the universe so far.
Which of the above two statement is more accurate?
B is more accurate because Hubble's law is used to define universal expansion (the measure of which is the Hubble constant "H sub zero"), and universal expansion is based, in large part, on observed redshifts of distant galaxies.
 
It must be borne in mind that the big bang theory is not a theory of the origin of the universe, but of its evolution. On the other hand, the "Hubble's redshift" is actually the Slipher's redshift.
 
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Shush! Or Doppler will hear you.
 
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Bandersnatch said:
Shush! Or Doppler will hear you.
I don't think so: Doppler shift is produced by the speed of displacement of the emitter with respect to the receiver, while the cosmological shift is produced by the expansion of space.
 
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louislaolu said:
Actually I am trying to figure out why Hubble's redshift was replaced with Hubble's law when the sentence containing the former was translated from Chinese into English.
That's not a question about cosmology, or even about physics in general. It's a question about how the translator was programmed.

Thread closed.
 
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