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Kola Superdeep Borehole: The Deepest Hole Ever Made
The Kola Superdeep Borehole, dug during the Cold War, remains the deepest hole ever made by humanity. In this video, we explore the science, history, and fascinating discoveries behind this ...
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China’s oil company drills Asia’s deepest vertical well
Russia’s Kola Superdeep Borehole SG-3 with a vertical depth of 12,262 metres completed in 1989 was regarded as the world’s ...