Changes

However, although this showed that mainstream scientists are open to new and controversial ideas, the methods Webb used were shown to contain simple flaws, which discredited the results. <ref>M. T. Murphy, J. K. Webb, V. V. Flambaum, Phys. Rev. Lett., 99, 239001 (2007)</ref>. A later study of 23 absorption systems using the 'Very Large Telescope' found no measurable changes.<ref>H. Chand et al., Astron. Astrophys. 417, 853 (2004)</ref>.  

However, although this showed that mainstream scientists are open to new and controversial ideas, the methods Webb used were shown to contain simple flaws, which discredited the results. <ref>M. T. Murphy, J. K. Webb, V. V. Flambaum, Phys. Rev. Lett., 99, 239001 (2007)</ref>. A later study of 23 absorption systems using the 'Very Large Telescope' found no measurable changes.<ref>H. Chand et al., Astron. Astrophys. 417, 853 (2004)</ref>.  

These problems with the theory have led most creationists to drop the idea, although some credit it with stimulating further research.<ref>Humphreys, 1994, p.128</ref>. Systematic uncertainties are difficult to quantify and so Webb's results still need to be checked by independent analyses, using quasar spectra from different telescopes. There efforts are ongoing, apparently by several different teams of scientists.

These problems with the theory have led most creationists to drop the idea, although some credit it with stimulating further research.<ref>Humphreys, 1994, p.128</ref>. Systematic uncertainties are difficult to quantify and so Webb's results still need to be checked by independent analyses, using quasar spectra from different telescopes. Their efforts are ongoing, apparently by several different teams of scientists.

=== Humphreys' model ===

=== Humphreys' model ===