How to pronounce “caisson” in English

And they were taking grave risk. Haldane -- I don't know if, Haldane was the fellow who pioneered the real understandings of --for hard hat divers and for people who worked in bridge caissons, anybody who was working under pressure was susceptible to the bends.So there had been some research on this. And they had primitive dive tables but Cousteau refined them, he and the others who worked with him.

their vision. And he was a genius at that.The question was did they use the dive tables in caissons and in early diving.The answer is yes; they did the best they could.