atomic nuclei can be content or agitated

An example of anthroporphism and metaphor:

"Apparently, certain stable atomic nuclei, content to sit quietly forever, could be rendered unstable if they were obliged to swallow additional subatomic particles. The forcibly engorged atomic nuclei, in an agitated state, began spewing out little pieces of themselves, just as in 'natural' radioactivity."

Professor Alan Lightman

Quoted in Royston M. Roberts (1989) Serendipity. Accidental discoveries in science.

The extended metaphor (swallow…engorged…spew) seems to be an implicit analogy with a glutton.

Author: Keith

Former school and college science teacher, teacher educator, research supervisor, and research methods lecturer. Emeritus Professor of Science Education at the University of Cambridge.