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Homework Statement
After todays exams, I'm having a few well deserved beers with a friend. We are pondering about some things we're not competent enough to comprehend (I'm a journalist and he is an architect).
1. e = m*c² -- how does lightspeed come into this equation, and why is it squared?
2. Shape of the universe: How can something have a shape if it does not occupy a tangible space? For example, if we live in a saddle shaped universe, how can we say it it is saddle shaped without any observers who are able to see it as so?
3. Expansion: Can gravity have an influence between parallel universes, and can it explain expansion and dark matter (ie. our universe is getting stretched by other universes in our neighborhood)?
4. Gravity waves: What if we don't find 'em?
The Attempt at a Solution
Beer talk.
(sorry if this is considered spam and drunken physics posting is a faux pas)
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