Great website from the University of New South Wales - excellent intro to relativity that doesn't require too much brain power to comprehend. What i don't get is why the speed of light has to be constant in the first place...? (although i understand it is actually slowing down as the universe gets older- aren't we all). I have been mystified by the "constants of nature" since high school physics... what if G, E etc were different? Would we be here to blog about it? The anthropic principle seems to me a bit of a cop out!
comments anyone?
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Does anybody comment on your blog that isn't selling something?... ;)
ReplyDeleteThe constants might be tuned the way that they are for good reason since the "near-flatness" of the universe represents the most energy-efficient configuration possible for evenly dissipating enrgy.
In other words, if the second law of thermodynamics points the arrow of time, then the anthropic principle maximizes time.
All we can go off of is our experience.
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