Do the ‘Constants of Nature’ change with Time?
- 1 June 1958
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 3 (30) , 582-585
- https://doi.org/10.1080/14786435808565799
Abstract
The age of minerals determined by radioactive methods agrees roughly with the age of the galaxy. This suggests that radioactive alpha-decay constants have probably changed by less than a factor of 3 or 4 during the last 3 or 4 × l09 years. It is shown that this implies that many ‘Constants of Nature’, particularly e, h and c probably change more slowly than 10−12 parts per year. The meson coupling constant also appears to change more slowly than this and the beta-coupling constants by less than 10−9 parts per year.Keywords
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