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I want to thank Phillip Helbig, conjk, and our moderator for comments
on my questions. As a side note, my absence from the newsgroup for the last few years is because I took Dr. Helbig's suggestion about reading E.A. Harrison's Cosmology to heart. I disappeared soon after getting my copy, and I've been studying it repeatedly for a couple years along with a few other choice books from the NAS bookstore, which is just a couple blocks from the courthouse. Feel free to make references to Harrison's chapters more specifically if you believe I've missed something. (Right now, I'm packing the book to go with me to a convention so I can re-read the redshift chapter in between continuing legal ed classes.) As a layperson, I join the professionals here in agreeing that Harrison's book is a terrific, though somewhat exorbitantly priced, source for serious laypeople. Nevertheless, after studying Harrison carefully, I am left with the question of how our observations from the inside of a massive white hole caused by a massive matter-anti-matter collision (or other collision resulting in significant anti-matter blow-off) would be inconsistent with inflation theory; it answers all the same questions with the same answers. For example, the white hole equally solves monopoles, flatness, and the horizon problem. The background radiation should remain homogenous and isotropic. The question turns away from Archytas's might and main, and we look instead to the nature of the boundary, for a white hole boundary is an unapproachable and nearly impermeable boundary. I suppose we'd need to explain a new concept of inverse Hawking radiation, but I'm unpersuaded by the current explanation of short GRBs: if GRBs result from quasi-polarized or pulsar-like directed axial blow-off of supernovae collapsing into black holes, why do they come in different sizes? Under this thesis, are long GRBs still unrelated? (If the GRBs are the results of collisions at the outer boundary of the Big Bang analogous to shooting stars dancing across the Earth's atmosphere, we would expect them to come in many sizes and along many trajectories.) If we are detecting these short GRBs from residual energy left in the cloud surrounding a supernova event instead of directly, what physical explanation can be proffered for how the energy remains polarized when being re-radiated from the debris cloud? Shouldn't the re-radiated energy in our direction be some fraction of the input energy from the GRB? If the energy of a short GRB is de-polarized or dis-oriented by the debris cloud that lets us see it for more than a few seconds, isn't the energy we see way too powerful to be from a distant source? So, are we back to the Oort Cloud thesis? Is anybody considering the possibility that this might be blue-shifted light in a red-shifted universe? Moreover, ought it not be troubling that other research seems to find black holes in a range of sizes, challenging the notion that they are exclusively the byproduct of supernovae collapses? If those black holes result instead from the Big Bang as detritus from the explosion that could not keep up, then they, too, are boundary conditions, potentially explaining the many similarities between conditions at the edges of the universe and a black hole, and that might also explain some really funny reciprocals found in quantum mechanics. The super-string folks should be curious, too, because their extra dimensions would no longer have to be hidden in furls within plain sight. If one could construct the suitable experiment Dr. Helbig mentions, Occam should be begging from Hades for a non-null result. In addition to posing these as questions and begging your indulgence for my exuberance, I have a couple follow-up questions for Philip Helbig: First, is there any way I can access the Loeb paper? Included in that are two sub-questions. (1) Is arXiv:astro-ph/9802122 a citation to a subscription journal which I can only access if my lab or my law office has a subscription? And, eh-h-h, realistically speaking, (2) can a math moron with a whole bunch of advanced degrees and impressive honors in the wrong field actually read the paper, or would I be wasting my time until Brian Green or Stephen Hawking or (on a good day) Roger Penrose translates it? Second, your last paragraph is fascinating, but I need more explanation. Is it possible to use this to measure acceleration along the t-axis? Please further explain: the theory is trivial. We need ONE observation of an object with brightness and redshift to get the Hubble constant; with 3 objects at different redshifts we can measure 3 cosmological parameters. The problem in practice is that the absolute brightness is not known exactly and/or might have scatter, so most of the work goes into trying to understand the physics of the sources (several astrophysicists have made a career of this) and collecting enough data to overcome the statistical noise introduced by real scatter in the brightness. Don't we need multiple observations of the SAME object in order to cancel out the thetas? If I have three objects at different redshifts and different distances in xyz space, I might be able to deduce the Hubble constant in xyz space. But, am I missing something you are communicating about translating that into xyzt space-time? I believe I understand your point that much of the problem is in the pudding: like conjk, you seem to be noting that the error in observation might overwhelm any measurement of differences in velocity along the t axis during a human lifespan. But, are you also suggesting an approach -- or a hope -- that measurements of three objects could be used to measure a different cosmological parameter other than acceleration in xyz space? Could that lead to the data of acceleration along the t- axis that I am seeking? -- Richard S. Sternberg, Esquire [[Mod. note -- arXiv:astro-ph/9802122 is a reference to a preprint on the internet preprint archive at http://www.arxiv.org . If you just type astro-ph/9802122 into the search box at the top right corner of that page, it will take you to http://arxiv.org/abs/astro-ph/9802122 which gives the title, author, and abstract of the paper, and has links to where you can download the full paper in postscript, pdf, or other formats. While you're at the arxiv.org preprint archives, you might enjoy browsing around some of the other stuff there. There is a *lot* of material there... -- jt]] |
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