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Repairing Notre Dame's Vaults with Underground Quarries

Clip: Season 47 Episode 8 | 2m 51s

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By exploring Paris' underground tunnels, can scientists identify the original source of Notre Dame's vaulting stone, damaged in the 2019 fire?

Aired: 11/25/20 | Rating: NR

Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.

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