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It has long been known that the C-14 calibration curve, which relates theknown age of tree rings to their apparent C-14 ages, includes a number of"wiggles" which clearly are not experimental errors or other random effects. Areasonable interpretation of these wiggles is that they indicate that the Sun'sfusion "furnace" is pulsating, perhaps for reasons similar to that of theCepheid variables, albeit under a very different regime of pressure andtemperature. If this speculation is correct, we are seeing the heartbeat of theSun-the C-14 calibration curve is the Sun's "neutrino-cardiogram." Elevatedneutrino flux during a relatively brief period would have two effects: (1) asurge in C-14 fraction in the atmosphere, which would make biological samplesthat were alive during the surge appear to be "too young" (2) depletion of C-14in the biotic matter already dead at the time of the surge; this is aconsequence of the recently discovered Jenkins-Fischbach effect, which is anobserved correlation between nuclear decay rates and solar activity orEarth-Sun distance.  In addition, the precise value at any given time of the "half-life" of anyunstable isotope-including C-14-must now be considered in doubt, since theJenkins-Fischbach effect implies that we may no longer view the decay rate ofan isotope as intrinsically governed and therefore a constant of Nature.

Implications for C-14 Dating of the Jenkins-Fischbach Effect and Possible Fluctuation of the Solar Fusion Rate