| Show diver feet down pressure tons milwaukee max E nohl mohl diver who descended to a depth of feet in lake michigan recently withstood a pressure on his body of 0 tons more at that depth than he did at the surface atmospheric pressure ot of 15 pounds to the square inch adds up to about twelve tons when all the square inches of the average mans skin ikin are considered at feet the pressure is about pounds to the square inch dissolved gas in the human blood stream and body cells enable us to resist the pies pressure sure of the atmosphere mo sphere at shallow depths compressed air helps a disei to resist water pressure but as the pressure increases nitrogen from the air dissolves in tho the blood stream causing trouble it if the diver comes to the surface too rapidly bends or caisson aisea disease a a common and serious illness of divers hers is caused by collecting nitro geri gen bubbles in n the capillaries capil laries these bubbles act as blood clots blots |
