Overview:Nina and her Experimenters show why the Eiffel Tower was built with lots of triangles.
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First Air Date: Jan 01, 1970Last Air date: Oct 02, 2015Season: 3 SeasonEpisode: 65 EpisodeRuntime: 15:14 minutesQuality: HDIMDb: 5 / 10 by 1 usersPopularity: 6.022Language: en
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