large red flag to me, especially the choice of materials used for the pressure-proof portions of the hull. specifically, that use of carbon fiber was something that i personally considered alarming because in past putting them into saltwater has resulted in what we call delamination, which is a separation of the layers. and it s the bonding of those layers that really gives those materials their strength. a lot of experts have raised concerns in recent days about the carbon fiber hull, which was, frankly, an innovation that stockton rush was really proud of. we know more than nightclub anybody. this will be one of the great moments of submersibles in that this technology is what we need to explore the ocean depth. we learned about two former oceangate employees who had raised concerns about titan s
the construction of this particular sub was immediately a large red flag to me, especially the choice of materials used for the pressure-proof portions of the hull. specifically, that use of carbon fiber was something that i personally considered alarming because in past putting them into saltwater has resulted in what we call delamination, which is a separation of the layers. and it s the bonding of those layers that really gives those materials their strength. a lot of experts have raised concerns in recent days about the carbon fiber hull, which was, frankly, an innovation that stockton rush was really proud of. we know more than anybody. this will be one of the great moments of submersibles in that
more tonight about the science of submersibles following that deadly titan sub tragedy. kristen dahlgren shows us the vessel that first took humans to see the titanic and just what it takes to safely explore the deepest parts of the sea. reporter: as pieces of the titan were raised, so were questions about safety and the future of vehicles that are sometimes unregulated, topics that hit close to home at the woods hole oceanographic institution. we support science. we support exploration, and we support national defense. reporter: perhaps nowhere on earth do they know more about submersibles. there s two things that you don t sacrifice in innovation, and that s quality and safety. reporter: carl hartsfield was an adviser on the search for titan. when you heard that titan was made out of a carbon fiber hull with a titanium end cap, what did you think? well, the first thing i thought is that it s two dissimilar materials and how they re joined
understand a tiktok, a minute by minute of what happened and that their family members didn t suffer any pain. all of that so important. i want to highlight several investigations, not the least of which may be criminal investigations which are yet to come, although that is not a sure thing. most of the u.s. what the u.s. coast guard is doing and transportation safety board in canada make sure that submersibles are safe and whether or not more regulation is needed. thank you for the reporting and the update. all right. parts of paris are burning for a second night after a 17-year-old was shot and killed by police. how the french government is reacting to the protest and violent clashes. live in paris next. so you only pay for what you need. that s my boy. stay off the freeways! only pay for what you need. liberty. liberty. liberty. liberty.