Recent content by Louis B

Homework Statement Prove that cos(\frac{\theta}{2}) = \pm\sqrt{\frac{1+cos\theta}{2}} using the unit circle. Homework Equations The Attempt at a Solution I'm not sure if it's possible for you to provide a clear graph on here for the solution but a link would also be nice :)

There are MACHOS and WIMPS that are thought to be dark matter, right? However, I forgot what they stand for, or what they are, exactly.

Where is that?

I'm not denying that the 'Big Bang' existed, I'm just exercising ideas about the physical nature of the young universe.

I personally believe the 'Big Bang' was more of a little 'poof' of matter that came into existence. I also believe that in the first few billionths of a second of this our universe, it was in a liquid state because of the high pressure and heat that resulted from compacting all of our...

This reminds me of a topic on the fourth spatial dimension, and I think just as the second dimension operates on a third dimensional sphere, our third dimension might operate on a fourth dimensional hypersphere (the balloon). So, if we were in the second dimension, and we went all the way...

Ok thanks for clarifying. Haha I was under the impression that the galaxies didn't move...:rolleyes:

What causes the local group to move? I mean, in a galaxy there's a black hole in the center that causes the stars to orbit around it, but in a cluster of galaxies, is there anything that can cause them to move so fast?