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​ If humans have only ever been 12 kilometers down… how do we know what’s inside? Well, scientists used to have some interesting ideas about this! But now, one big answer is: Earthquakes. Here’s how it works.
If you want to know more about what’s inside Earth, watch our longer episode and subscribe to see more of our show Huge If True!
#shorts #animation #deepest #science #technology #historyfacts   Read More Cleo AbramÂ
