Well, mea culpa, I didnt read the full article. Interesting picture though. For 300 feet, there is a lot of lighting, but that could be using some really high end camera with some post processing as well.
FYI, 300 feet is safe with proper gas mix and extra training. Most recreational divers are limited to between 75’ and maybe 140’ with decompression stops on the way up when using straight compressed air. Deeper than that and straight air becomes toxic.
That’s very interesting. Thanks for the info.
It is amazing to see how far diving technology has gone. I've been told (some few years ago) that re-breathers were then capable of about 500 feet, using helium as a diluent gas.
I did a search and found this:
Crazy stuff. A long time ago, we were in the UP by Whitefish point for some wreck diving. We ran into these divers that were doing some technical diving, down to 220’ on open circuit scuba. They said they had about 20 minutes bottom time, and 2 hours decompressing on the way up. A tank would be hanging down from the boat at about 30’, apparently they didn't take all their air with them. Their suits had some weird air valve looking thing by the knees, I asked what that was for. For the catheter relief...
A friend was telling me at a party last Saturday about a current bridge project in Portland, OR. While sinking the piers, they hit a steel pile from the existing adjacent bridge. They had to send divers down about 150 feet to torch out the existing pile. Pitch black, working by feel, cold, bulky and stiff heated diving suits, very limited work time, cramped work space. It is amazing what people do for a living. It is so good America still has such can-do people. Talk about unsung heroes! Think of those guys every time you cross a bridge.