I'm not saying I have a better understanding than so many great minds that have put together today's theory of cosmology. However, it just doesn't make any sense. I'm sure I have some of the details wrong, but I think the gist is correct.
Some of the things I just don't get:
The expansionary universe. In some infinitessimal fraction of a second, the universe goes from being the size of a grapfruit to the size of the Milky Way. And this is propsed because it makes the equations work?
Dark matter: They say there must be dark matter because there's not enough mass in the stars we can see to account for galaxies not flying apart. How do we know in the first place how many stars are in a particular galaxy? The obvious answer to me is: Galaxy X is spinning at such-and-such a rate, and therefore must have such-and-such a mass. Well maybe that really is the mass of the galaxy, just with the regular matter.
Dark energy: Even worse, they say the rate of expansion of the universe is speeding up because more distant supernovae are dimmer than they expect. This is the way I've understood the argument, but it it not possible that it's intergalactic dust that makes supernovae dim?
Of course it doesn't make sense that we would be in the exact center of the universe, but how else do you explain that galaxies in all directions are moving away from us? I once did some basic 2-d calculations (even thought I've forgotten all my high school math) and it at least seemed possible to me that a universe where there truly is a center and everything is receding from it, at a speed proprotional to the distance from the center, it would look to an observer at any point like everything was uniformly receding from him. Along the x-axis it would look like this:
Center of the universe is at 0, and there are stars at 1 and 3. Observer is at 2. So star 1 is moving away from 0 at vx, 2 is moving at 2vx, 3 at 3vx. For the observer at 2, the stars at 1 and 3 are equally far away from him and both moving away at vx.
Comments?
Some of the things I just don't get:
The expansionary universe. In some infinitessimal fraction of a second, the universe goes from being the size of a grapfruit to the size of the Milky Way. And this is propsed because it makes the equations work?
Dark matter: They say there must be dark matter because there's not enough mass in the stars we can see to account for galaxies not flying apart. How do we know in the first place how many stars are in a particular galaxy? The obvious answer to me is: Galaxy X is spinning at such-and-such a rate, and therefore must have such-and-such a mass. Well maybe that really is the mass of the galaxy, just with the regular matter.
Dark energy: Even worse, they say the rate of expansion of the universe is speeding up because more distant supernovae are dimmer than they expect. This is the way I've understood the argument, but it it not possible that it's intergalactic dust that makes supernovae dim?
Of course it doesn't make sense that we would be in the exact center of the universe, but how else do you explain that galaxies in all directions are moving away from us? I once did some basic 2-d calculations (even thought I've forgotten all my high school math) and it at least seemed possible to me that a universe where there truly is a center and everything is receding from it, at a speed proprotional to the distance from the center, it would look to an observer at any point like everything was uniformly receding from him. Along the x-axis it would look like this:
Center of the universe is at 0, and there are stars at 1 and 3. Observer is at 2. So star 1 is moving away from 0 at vx, 2 is moving at 2vx, 3 at 3vx. For the observer at 2, the stars at 1 and 3 are equally far away from him and both moving away at vx.
Comments?
