# How the world's longest underwater tunnel was built

- Institution: TED
- Department: TED-Ed
- Speaker: Alex Gendler
- Year: 2020
- Level: For everyone
- Language: English
- Subjects: Engineering, History, Teaching and learning
- Source: [TED](https://www.ted.com/talks/alex_gendler_how_the_world_s_longest_underwater_tunnel_was_built)
- Licence: [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/) (Non-commercial use only, and no changed versions.)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Flanked by two powerful nations, the English Channel has long been one of the world's most important maritime passages. Yet for most of its history, crossing was a dangerous prospect. Engineers proposed numerous plans for spanning the gap, including a design for an underwater passage more than twice the length of any existing tunnel. Alex Gendler details the creation of the Channel Tunnel. \[Directed by Studio Kimchi, narrated by Addison Anderson, music by Aurélien Vieira Lino\].

## Lectures

1. [How the world's longest underwater tunnel was built](https://invisiblenetwork.ai/learn/ted/alex_gendler_how_the_world_s_longest_underwater_tunnel_was_built/ea4f204d56e7), 6 min (TED's player)