War at sea: a new form of warfare with exceptional challenges. In this episode, weapons expert Stephen Bull tests three significant weapons of the sea. The Byzantines guarded the Greek fire as the secret super weapon that kept Constantinople safe for over 800 years. Experts build an original replica for an experiment that will demonstrate the thunderous force of a ship cannon. One of the most devastating missiles ever invented is the torpedo, and a subsonic torpedo might be ruling sea battles in the future.
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A religion is a belief system with rituals. The missionary kopimistsamfundet is a religious group centered in Sweden who believe that copying and the sharing of information is the best and most beautiful that is. To have your information copied is a token of appreciation, that someone think you have done something good.