Jaime Rudas's latest activity
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Jaime Rudas replied to the thread Undergrad Does the scale factor need to be normalized?.Friedman's equations don't describe reality at t=0. -
Jaime Rudas replied to the thread Undergrad Does the scale factor need to be normalized?.Because for calculating the particle horizon, it's not relevant to know how many times the universe has expanded since the Big Bang...
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Jaime Rudas replied to the thread Undergrad Does the scale factor need to be normalized?.Yes, we can't.
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Jaime Rudas replied to the thread Undergrad Does the scale factor need to be normalized?.I will try to clarify my previous answer: the model does not include the moment t=0 because a singularity occurs there, that is, an...
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Jaime Rudas replied to the thread Undergrad Does the scale factor need to be normalized?.¿And?
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Jaime Rudas replied to the thread Undergrad Does the scale factor need to be normalized?.No, the model doesn't assume that. Where did you get that from?
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Jaime Rudas replied to the thread Undergrad Does the scale factor need to be normalized?.I agree. Thanks for clarifying.
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Jaime Rudas replied to the thread Undergrad Does the scale factor need to be normalized?.Since the scale factor was 0.5, it has doubled; since it was 0.1, it has expanded tenfold; since it was 0.01, it has expanded 100 times...
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Jaime Rudas replied to the thread Undergrad Does the scale factor need to be normalized?.I'm not sure I understand your point correctly, but it seems you might be confusing the expansion rate with the particle horizon growth...
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Jaime Rudas replied to the thread Undergrad Blueshift in case of the Big Crunch scenario.No, that doesn't follow from what Wikipedia says. Wikipedia states that the FLRW metric is used to model the expanding universe, but it...
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Jaime Rudas replied to the thread Alien life, probabilities, and interstellar propagation of human life.Is there really a limit to the number of ways particles can be arranged within a limited space? For example, is there a finite number of...
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Jaime Rudas replied to the thread Alien life, probabilities, and interstellar propagation of human life.No, the fact that the universe is infinite doesn't imply that a certain configuration will repeat infinitely.
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Jaime Rudas reacted to PeroK's post in the thread Alien life, probabilities, and interstellar propagation of human life with
Like.
In a more general context, a golden rule of using probability theory is that you understand the sample space. In this case, we simply... -
Jaime Rudas replied to the thread Undergrad Galaxy MoM-z14 - furthest observed object.From the context, it seems to me that what they're trying to confirm or refute isn't whether they are galaxies or not, but whether or...
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Jaime Rudas reacted to Ibix's post in the thread High School Estimates — True Size of the Universe? with Like.
Imagine a line of stakes 1m apart. The line is so long you can't see the end - and maybe there is no end. Go away and come back, and...