To maintain the myth that the earth is only 6000 years old, biblical literalists have to explain why we see stars that are billions of light years away.
Explanation absurdium adnauseum I:
initially the speed of light was much faster than present and thus, the stars are not really millions of light years away but only 6000 or less light years away.
Explanation absurdium adnauseum II: (Jason Lisle of "Answers in Genesis")
The speed of light is currently a variable; hyperspeed at the outer fringes of the universe, slowing to 186,000 miles per second as it reaches the point where we can measure it.
First, evidence that the creationists are ACTUALLY trying to claim that the speed of light has changed, just in case you think I'm making this up.
ON THE CONSTANCY OF THE SPEED OF LIGHT http://www.ldolphin.org/constc.shtml
Is the velocity of light a fixed constant of nature, invariant over time? This page presents the available measurements of c and several statistical studies which suggest that c has decreased in the past 300 years.. What other "constants" of physics might prove to be non-fixed? How would a non-constant c affect physical laws? Possible consequences for cosmology and the age of the universe.
REBUTTAL to changing speed of light
Think of the ramifications of this assertion. It would change everything. Where's the refereed research? None of the above articles appeared in any legitimate Physics, Astronomy or Astrophysics journal. Where's the endowed chair? Where's the Nobel prize?
It would invalidate one of the most fundamental principles of Physics: Einstein's Theory of Relativity:
E= Mc squared
What do you think the c represents?
THE SPEED OF LIGHT!
If c were not a constant all of nuclear physics would be wrong!
It is so basic that it appears in
every College Freshman Physics Textbook,
every College Freshman Astronomy Textbook
Links to articles contending that the speed of light is invariant over time.
Essence of each article will be shown here. The complete article can be found by following the link.
Speed of Light by The American Astrophysical Society tion/publications/tnl/56/ancient3.html">http://www.astrosociety.org/education/publications/tnl/56/ancient3.html
Light travels at 299,792.458 kilometers per second. During the last century, this number has been measured with exquisite accuracy, and found to be constant.
The Decay of c-decay http://www.talkorigins.org/faqs/c-decay.html
Great Technical Analysis
of what would happen IF the speed of light actually did change.
Conclusion: It can't, didn't, won't.