Hercules was a well-known manufacturer of Dynamite, Nitro Glycerin and other things that made loud noises, back around the turn of the century.
They even had a company town here in California named Hercules that was built up around their manufacturing facility.
Lieutenant Commander Grzegorz Lewandowski, spokesman for the Polish Navy's 8th Coastal Defence Flotilla, said: 'The deflagration process turned into detonation.
'The object can be considered neutralised, it will not pose any more threat to the Szczecin-Swinoujscie shipping channel.'