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Politics : Evolution
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To: Brumar89 who wrote (63139)11/21/2014 9:40:12 AM
From: 2MAR$  Read Replies (2) of 69300
 
There you go isn't science (and Wiki) grand? Hubble was born this day....

"However — Lemaitre didn’t have very good data (and what he did was partly from Hubble. And for whatever reason, he did not plot velocity vs. distance.

Instead, he seems to have taken the average velocity (which was known since the work of Vesto Slipher to be nonzero) and divided by some estimated average distance! If Hubble’s Law — the linear relation between velocity and distance — is true, that will correctly get you Hubble’s constant, but it’s definitely not enough to establish Hubble’s Law.

If you have derived the law theoretically from the principles of general relativity applied to an expanding universe, and are convinced you are correct, maybe all you care about is fixing the value of the one free parameter in your model. But I think it’s still correct to say that credit for Hubble’s Law goes to Hubble — although it’s equally correct to remind people of the crucial role that Lemaitre played in the development of modern cosmology."
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