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Here's the video I talked about if you're curious: https://www.youtube.com/watch?v=B185M2f_Zp4

I can't post the url but you can search it on youtube: primitive bow drill fire explosion

Have you seen this video where the guy uses a bow drill for making fire, he uses birch bark and then, while using it, it gets hot and literally explodes.

How can this be possible? Did anyone who...