Word: diver
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Helium, which goes out of solution far more swiftly than nitrogen, and is just as inert chemically, promises to serve as an efficient substitute for nitrogen as the 79% inert diluent of oxygen in a diver's breathing atmosphere, and to permit longer work at greater depths...
...reason with care. In college education, it holds the added significance of wide speculation inducing as sound general conclusions on existence as a term of four years will permit. Din, educational or otherwise, is not consonant with formal education. The student is somewhat in the position of a diver gauging the spring of the board and the depth of the pool. It is hardly prudent to push him in before he has some idea of how far he will be thrown and how deep the water...
...Otto Kraft, 20-year-old expert German diver, established what is said to be a world's record when he achieved a depth of 238 feet, last week, while searching vainly...
...decking virgins with jade and gold and hurling them, amid clouds of incense, into great limestone sinkholes, one of which measured 168 feet across and contained 80 feet of water and mud. After digging around for years, with indifferent luck, Professor Thompson went back to Boston and acquired a diver's technique by engaging to scrape barnacles off the hulls of ships. Returning to Yucatan, he gauged the point on the sacred well's brink whence the victims were probably thrown. He hurled in logs of human weight to approximate the drowning spot. He brought in a dredge...
...divers worked at the depth of 127 ft. in great difficulties. They had to be careful not to entangle their own ropes, wires, and air hose in the antennae, which would have been fatal. An hour was all they could stay down at a time. Exploring in the interior of the submarine with their bulky suits, with 24-pound weights on their feet and lead-weighted belts was difficult and dangerous. About an hour and a half was spent in raising them to the surface after each descent. They were raised 15 ft. and then allowed a rest while they...