Season 5 Episodes7
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Sean Barrett
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Ranked #3 of 7 in Season 5•+0.3 vs season avg
Citizens of ancient Tyre use fire ships against Alexander the Great's besieging fleet; Roman Emperor Nero builds a death yacht to kill his own mother; a 15th-century weapon designed to pierce enemy hulls; ancient paddle-wheel boat.

Sean Barrett
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"Impossible Naval Engineering" is episode 2 of Ancient Discoveries season 5. It scored 7.2/10 from 9 votes, ranking #3 of 7 episodes this season (season average 6.9). It aired on October 30, 2008.