Antoine Henri Becquerel [1] (Fig. 1) was born in Paris on December 15, 1852, in the Becquerel family, which was a family of renowned scientists. Starting with his grandfather, members of three generations of the Becquerel family were physicists, and they had an extraordinary interest in phosphorescence and fluorescence. His grandfather, Antoine César Becquerel (1788–1878), was a member of the i...