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Old 03-October-2008, 01:43 PM
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Quote:
Originally Posted by rcglinsk View Post
What are the precise predictions? 75.00 +/- .01?
Gee, to the hundredth of a percent ?? Well, Ned Wright's Tutorial says 24% by mass, give or take 0.5%. Turns out my memory WILDLY overestimated the Deuterium, which comes in at around 0.01%

Quote:
Originally Posted by rcglinsk View Post
What observations do you refer to when you say there is agreement? In your mind, what level of agreement is necessary to make the ratio matter?
I refer to things like these. Figuring out what the universe contains is an ongoing effort, not just one set.

The fact that these observations give around 23% to 26% Helium, rather than, say, 1% or 5%, is IMHO a darned good match :P

Quote:
Originally Posted by rcglinsk View Post
What does the BBT theory predict as to ratios of hydrogen, helium and deuterium in relation to each other element of the periodic table? Is there a similar level of agreement? As in within the same, I will assume very small, error bars?

Should agreement matter if it only relates to hydrogen, helium and deuterium; even if there is no agreement in relation to the other elements?
As per my previous post, the BB model says NOTHING above Lithim was produced in the BB (so yes, VERY small error bars ! )

Quote:
Originally Posted by rcglinsk View Post
Also, your articles refer to "young" as defined by models of what young means. I was more asking about what those models said and what they were based on.
[QUOTE=rcglinsk;1336074]

Please though, remember the other questions:

Quote:
Originally Posted by rcglinsk View Post
How is the big bang a falsifiable theory?
Like any other theory, data could come in tomorrow that would blow it away. As I mentioned earlier, we have no idea what 95% of the universe is comprised of. Discoveries in that area could affect the model. Further, the BB is greatly dependent on Quantum Gravity. How that turns out, together with discoveries from the LHC and others, can knock it.


Quote:
Originally Posted by rcglinsk View Post
Why would one believe it solely because no one has offered a better theory?
I can't improve on RegisteredUsername's answer to that one

Quote:
Originally Posted by rcglinsk View Post
What are the other measures of the age of the universe you refer to?
Again, take a look at Ned Wright's Tutorial

Quote:
Originally Posted by rcglinsk View Post
How does one know how "far out" a galaxy is?
Those galaxies were in the Hubble Ultra-Deep Field. That picture was the result of Hubble staring at the emptiest piece of sky for a 1 MILLION second exposure - that's over 10 days solid ! EVERYTHING in that picture is a LOOOOOONG way away !