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1:52:30
100,000 Years Ago: Earth’s Lost Civilization? Documentary For Sleep
1:00
Blombos Cave: Stone Age Cave & the OLDEST Known Drawing in the World #historicaltidbits
3:16:56
Why Earth Keeps Freezing Every 100,000 Years
2:48:03
Why Earth Suddenly Freezes Every 100,000 Years | Documentary For Sleep
0:51
Progressive Photonics: New Photography Technique Brings Hidden History of Fossils to Light
0:44
What does Tin Ore Look Like?
0:57
What does Cadmium Ore Look Like?
2:13:14
Why Eccentricity Drives Earth’s 100,000 Years
