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There are numerous natural phenomena for which evolution gives us a sound theoretical underpinning.

To name just one, the observed development of resistance - to insecticides in crop pests, to antibiotics in bacteria, to chemotherapy in cancer cells, and to anti-retroviral drugs in viruses such as HIV - is a straightforward consequence of the laws of mutation and selection, and understanding these principles has helped us to craft strategies for dealing with these harmful organisms.

See also radiometric dating "RATE" redirects here ...

nuclear physics generally, and radiometric dating in particular ...

Radiocarbon dating, based on the Carbon 14 isotope, has been particularly criticized ... His primary field was radiometric dating, which was transforming the field of geology in the 1950s ...

It is argued that radiometric decay relies on a number of unwarranted assumptions, such as the principle of uniformitarianism, consistent decay rates, or rocks acting as ... He was a pioneer in the field of Carbon 14 dating and in 1950, established the Carbon 14 research centre at Columbia University, the second in the United States ...

LJ would like to thank Sacha Brun for helpful comments on the data assimilation part in this paper.

MR and AS have received funding from the European Research Council under the European Union’s Seventh Framework Program (FP/2007-2013)/ERC Grant Agreement no.

We review recent advances and results in enhancing and developing helioseismic analysis methods and in solar data assimilation.

In the first part of this paper we will focus on selected developments in time-distance and global helioseismology.

Methods: We use 17 frequency separation ratios r(n) ratios.

Moreover, we employ the 2010 CODATA recommended values for Newton's constant, solar mass, and radius to calibrate a large grid of solar models spanning a conceivable range of solar ages.

In the second part, we review the application of data assimilation methods on solar data.

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