Space and time. What I dont know but would like to

[Fiction]

Over the last few weeks I have learned some stuff about time and space etc.
I'm not entirely sure I understand it all.
The main thing being that time on the ground floor of a tall building is slower than time on the top floor?

A few other things that I have questions about are.
The big bang
Antimatter
Dark Matter
How/Why the universe is expanding
If it will start shrinking after it stops expanding
If it does start to shrink will it be due to gravity?
The theory of relavity
Also, general stuff about time.

I'm not too 'in the know' on stuff.
Simple explanations of complicated things would be nice. I would like perespective

 

[Naty1]

This is not an ideal place to ask so many questions...most of which nobody understands completely anyway...instead try doing some additional reading on your own...

Google your topics one per day and spend maybe an hour daily on each...AND/OR

try http://www.astro.ucla.edu/~wright/cosmology_faq.html#FTL or

http://preposterousuniverse.com/writings/cosmologyprimer/faq.html or

http://math.ucr.edu/home/baez/physics/


and read a few topics daily at your own pace.

 

[Crazy Tosser]

I second what Naty1 said, but in my opinion books are much more user-friendly than the internet. I try to not use Wikipedia for learning anything but the most basic stuff. Flipping pages, seeing the stuff you are interested in and reading it, and then if you need something, just get the book and look for it... in the same time seeing more interesing stuff and... Anyway, 'nuff lyrics, just find some good books in Amazon, or in your local bookstore :) My personal favorite is "The Trouble with Physics" by Lee Smolin. For starters, if you know what's good for you, find the books with the least number of equations possible, because... equations just freak you out and they don't really help you understand anything...