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Showing posts from August, 2009

7) Dark Matter: The Rigidity of Spacetime

Note that this post makes reference to a scale-model Solar System, which was introduced in a prior post. What does this have to do with the rigidity of space? Think of a location that is about 40 miles from where you are at this moment. Even if there is interstate highway between you and this location, it would still take quite a drive to get there - 40 miles is a fair distance. Now, imagine that the entire region around you is covered with a layer of insulating foam, which is 50 feet thick (think of something you might find in the cushions of a sofa). If you were to set a golf ball on the foam in front of you, it would have no reason to roll in any particular direction (for this example, assume that you are somehow hovering above the foam, and that there is nothing else nearby to disrupt its smooth, flat surface). Now, let's say that 40 miles away there is an enormous floating crane, which is holding a scale model of the sun (a spheroid, 36 feet in diameter) suspended in the...

6) Dark Matter: Kepler's Third Law

Let us now perform another level-set. So far, we recognize and accept the obvious existence of matter within the Universe. Furthermore, as  E=mc 2  tells us, whether any unit of matter happens to take the form of energy or mass does not subtract from its overall qualification (or quantification) as matter. In other words, mass and energy are interchangeable; they are only different  forms  of matter. Of course, this is not to suggest that switching between these two states is a trivial thing - far from it, but that is a topic for another day. Next, we know that empty space isn't exactly empty. Meaning, in a very real sense, there is a spacetime fabric that can be coerced into forming gravity wells, or producing other observable effects such as gravitational lensing. Gravity wells then, are constructed of spacetime itself; they do not fall within the realms of matter, but have identifiable characteristics nonetheless. General Relativity actually predicts  Emb...

5) Dark Matter: The Big Bang

Once we begin considering the possibility that galactic gravity wells could somehow be independent of the matter within them, a few more questions immediately surface. Could gravity wells predate the matter within them? Why does matter seem to always  live  in these gravity wells rather than more evenly cover the emptiness of intergalactic space? Why do they rotate? And of course, what causes them? Surprisingly, none of these questions are difficult to answer within the context of our current line of reasoning. There are in fact, agreeable, and what seem to be quite plausible answers to all of them.  Note that I will not get to all of these questions within this particular post, but will eventually address each of them within this Dark Matter series . In terms of the Big Bang, all the matter in the Universe is nothing more than a debris field. On first glance, this debris appears to be remarkably evenly distributed. But on closer inspection we find that although ...