More accurate timepieces could lead to better global positioning systems, insights into fundamental physics and a redefinition of the second. David Adam rates the runners in the race to build tomorrow's atomic clocks.
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David Adam is a news and features writer for Nature.
- David Adam
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Adam, D. The times, they are a-changin'. Nature 421, 207–208 (2003). https://doi.org/10.1038/421207a
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DOI: https://doi.org/10.1038/421207a
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