According to a Washington Post report in March of last year, a 31-gram piece of the hafnium-178 isomer stores enough energy to boil 120 tonnes of water.
Prema izveštaju Vašington posta iz marta prošle godine, komad izomera hafnijum-178 težine 31 gram ima dovoljno energije da dovede do ključanja 120 tona vode.