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Published online 3 May 2003 | Nature | doi:10.1038/news030428-20
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Lab tests tenets' limits
If the fundamental constants of physics change, they do so too slowly for us to detect.
After years of careful bench-top experiments, two groups of physicists have put limits on just how constant nature's constants really are1,2. Until now, physicists had to look to the stars to set their boundaries.
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