Sources
Every claim in our films, and where it comes from.
5 videos · 140 sources
5 videos
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The lighthouse keepers who vanished from Flannan Isles
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The day a wave of molasses swept through Boston
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Why Roman concrete is still standing and ours is cracking
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Tunguska, 1908: the explosion that flattened 80 million trees and left no crater — and the eighty years of expeditions, theories and arguments that followed
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Krakatoa, 1883: the eruption the whole world read about
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