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Is it possible to survive being stuck in quicksand? Jonny Phillips risks life and limb to experience firsthand what it is like to slowly sink into quicksand—just a few feet away from an incoming tide. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About I Didn't Know That: Two industrial scientists, Richard Ambrose and Jonny Phillips, explain the science behind everyday life... from microwave ovens to beating a lie detector. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Can You Survive Quicksand? | I Didn't Know That https://youtu.be/a2VJqud3Ls8 National Geographic https://www.youtube.com/natgeo