Sub Sphere: What Protects Human Deep Divers? | National Geographic

When James Cameron dives to the lowest point of the Pacific s Mariana Trench, 36,000 feet of water pressure is bearing down on his sub, which feels like 13 cars weighing on each of his shoulders! But he s protected by sitting inside a 2 1/2 inch thick steel ball. ➡ Subscribe: http://bit.ly/NatGeoSubscribe 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. 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 Sub Sphere: What Protects Human Deep Divers? | National Geographic https://youtu.be/GnekAQTbEcI National Geographic https://www.youtube.com/natgeo