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Season 26, episode 1. Keep your place, move between servers, and stay ready for the next episode.
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Lost at Sea: The Search for Longitude
In 1714, following a maritime disaster, British Parliament offers £20,000 for the first reliable method of determining longitude on a ship at sea. It's known that longitude can be found by comparing a ship's local time to the time at the port of origin. The challenge is finding a clock—a chronometer—that can keep time at sea, where temperature changes, humidity, gravity and a ship's movement affect accuracy. NOVA chronicles the seventeenth-century journey to determine longitude.
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Episode 1: Lost at Sea: The Search for Longitude
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Episode 2: Chasing El Nino
Episode 3: Terror In Space
Episode 4: Special Effects: Titanic and Beyond
Episode 5: Deadly Shadow of Vesuvius
Episode 6: Ice Mummies: Frozen in Heaven (1)
Episode 7: Ice Mummies: Siberian Ice Maiden (2)
Episode 8: Ice Mummies: Return of the Iceman (3)
Episode 9: Leopards of the Night with David Attenborough