The universe may be built on shifting sands.
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Webb, J.K et al. Further evidence for cosmological evolution of the fine structure constant. Physical Review Letters 87, 091301, (2001).
Webb, J. K., Flambaum, V. V., Churchill, C. W., Drinkwater, M. J.. & Barrow, J. D. Search for time variation of the fine structure constant. Physical Review Letters 82, 884 - 887 (1999).
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Ball, P. Fundamental constant swells. Nature (2001). https://doi.org/10.1038/news010816-8