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The deepest hole humans have ever drilled into the Earth is just 12.3 kilometers, about 0.2% of the distance to the planet’s core. That effort, the Soviet-era Kola Superdeep Borehole, took more than 20 years to complete. And despite decades of technological progress since, we haven't gone any deeper. So what’s stopping us?
Business Insider visited drilling sites and spoke with engineers and industry experts to understand what it would take to go deeper than ever before, and whether reaching the Earth’s mantle is even possible.
00:00 - Intro
01:09 - The deepest hole
03:22 - Heat
05:55 - Millimeter wave
11:44 - Pressure
14:54 - Real-world testing
16:55 - What's down there?
18:34 - Earthquakes
20:36 - Economics
27:30 - The maximum depth
31:02 - Credits
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#digging #boreholedrilling #drillinggeology #thelimit
MORE EPISODES FROM THE LIMIT:
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Why A Mile-High Skyscraper Is Almost Impossible
Why Humans Living In Space Is Almost Impossible
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Why Digging 12 Miles Deep Is Almost Impossible | The Limit | Business Insider
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