Lithium hydride
Before the Castle Bravo nuclear weapons test in 1954, it was thought that only the less common isotope lithium-6 would breed tritium when struck with fast neutrons. The Castle Bravo test showed (accidentally) that the more plentiful lithium-7 also does so under extreme conditions, albeit by an endothermic reaction.
The Bravo
The Bravo is a novel by James Fenimore Cooper first published in 1831 in three volumes. Inspired by a trip to Europe where he traveled through much of Italy, the novel is set in Venice. "The Bravo" is the first of Cooper's three novels to be set in Europe. This group of three novels, which one critic would call Cooper's "European trilogy", include "The Heidenmauer" and "". Like his other novels set in Europe, "The Bravo" was not very well received in the United States. The book largely focuses on political themes, especially the tension between the social elite and other classes.