I scattered a small sample of technetium on my father’s tomb at the Verano Cemetery in Rome, my tribute of love and respect as a son and as a physicist. The radioactivity was minuscule, but its half-life of hundreds of thousands of years will last longer than any monument I could offer.
Emilio Segrè, the discoverer of the forty-third element, technetium (via Gino Segrè’s “A Matter of Degrees”)