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SVTPerformance's Chain of Restaurants
Road Side Pub
Cosmology thread
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<blockquote data-quote="James Snover" data-source="post: 13398785" data-attributes="member: 67454"><p>Get me drunk and here is what I would speculate:</p><p></p><p>It is currently theorized that the universe is expanding. And the farther out we look, we see the universe expanding faster. And the rate of expansion appears to be accelerating, too. So the current conclusion is:</p><p></p><p>The universe is not only expanding, but the rate of the expansion of the universe is accelerating.</p><p></p><p>I'm not so sure that is an accurate statement. I think the statement should be:</p><p></p><p>In the past, the expansion of the universe was faster than in the present. And that in the past the rate of the expansion of the universe was accelerating.</p><p></p><p>Here's why I say that: We see the universe expanding away from us at great distances. We know that the farther out we look, the farther into the past we are looking due to the lightspeed delay. So in the far distant past, we see expansion and increase in the rate of acceleration of expansion. </p><p></p><p>But the closer in we look, within our own local group of galaxies, we see very little, or no, redshift, and we conclude there no expansion at local distances.</p><p></p><p>So it seems to me that, if the principle of "redshift = expansion of the universe" apply equally throughout the universe, then as far as we can tell, the universe most likely is not expanding "now." And since we can only see a 13+ billion light year radius, and that most of that is from the far distant past, then we don't know what the universe is doing now.</p><p></p><p>Get me really drunk, and I'll say: if we observe any local blue-shift of light, we might be in trouble. And since reduced red-shift is the same as increase in blue-shift, we might be in trouble.</p><p></p><p>And then I'll drink my third beer and pass out drunk.</p></blockquote><p></p>
[QUOTE="James Snover, post: 13398785, member: 67454"] Get me drunk and here is what I would speculate: It is currently theorized that the universe is expanding. And the farther out we look, we see the universe expanding faster. And the rate of expansion appears to be accelerating, too. So the current conclusion is: The universe is not only expanding, but the rate of the expansion of the universe is accelerating. I'm not so sure that is an accurate statement. I think the statement should be: In the past, the expansion of the universe was faster than in the present. And that in the past the rate of the expansion of the universe was accelerating. Here's why I say that: We see the universe expanding away from us at great distances. We know that the farther out we look, the farther into the past we are looking due to the lightspeed delay. So in the far distant past, we see expansion and increase in the rate of acceleration of expansion. But the closer in we look, within our own local group of galaxies, we see very little, or no, redshift, and we conclude there no expansion at local distances. So it seems to me that, if the principle of "redshift = expansion of the universe" apply equally throughout the universe, then as far as we can tell, the universe most likely is not expanding "now." And since we can only see a 13+ billion light year radius, and that most of that is from the far distant past, then we don't know what the universe is doing now. Get me really drunk, and I'll say: if we observe any local blue-shift of light, we might be in trouble. And since reduced red-shift is the same as increase in blue-shift, we might be in trouble. And then I'll drink my third beer and pass out drunk. [/QUOTE]
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