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.
Anastasio Ballestrero
Ballestrero agreed to scientific testing being performed on the Shroud of Turin in October 1978 but refused to permit radiocarbon dating testing as it required removing samples from the shroud itself. Once technical improvements made it possible to use samples the size of postage stamps the cardinal permitted samples to be cut in April 1988 which he himself supervised to ensure it was carried out in an appropriate manner. These would be tested in three labs in Switzerland as well as in the United States and the United Kingdom.