(April 29, 2012 at 9:41 pm)Abishalom Wrote:(April 29, 2012 at 9:23 pm)FallentoReason Wrote:I only took 1 astronomy class. They said the universe was about 15 billion years old by measuring Doppler shift (or something like that). I just went along with it at the time (never really thought much about it). They say they light is billions of years old, I'm assuming because of this Doppler shift (correct me if I'm wrong).(April 29, 2012 at 8:50 pm)Abishalom Wrote:(April 29, 2012 at 8:44 pm)FallentoReason Wrote: Abishalom, what do you think of the age of the light we see from stars?
Why does the age of light matter? As long as it still works it's fine with me.
Maybe it's irrevelant with your belief. Do you believe the universe is also very young? If so, then my point was that the light we see from stars is sometimes billions of years old.
Yes, the Doppler Effect helps us account for the fact that the universe is expanding. Otherwise we wouldn't be able to tell what the true distance of the object we're measuring is, and hence how long the light has been travelling.
"It is the mark of an educated mind to be able to entertain a thought without accepting it" ~ Aristotle