Word: hydrogenized
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...descent. Now the great yellow cotton bag, of 14,000 cu. ft. capacity, is laid carer fully out on the field by 100 workmen, sweating under a blazing sun. The shroud lines which support the spherical aluminum gondola are straightened out with meticulous care. In the cool of night hydrogen is fed from cylinders into the envelope. In less than an hour the inflation is finished. The bag is one-fourth inflated, bulges at the top like a mushroom...
...Considering the circumstances-that is, a submarine operating on the surface, with her hatches open, and her commander, and others, on deck, and showing no intention of submerging-the most probable cause of sinking is an internal explosion. All submarines give off an odorless gas, hydrogen, when charging batteries, and this gas, when mixed even in small proportions with air, forms an extremely powerful explosive mixture, which might be ignited from a number of causes inside the boat. The resulting explosion might easily have so damaged the hull as to sink the submersible immediately. In our own Navy there have...
...Being bled of her hydrogen a few days after arriving from Germany, borrowing the Shenandoah's helium supply for her first flights in the U. S. (Because the gas was scarce in those days, the Shenandoah had to stay at home while her new sister went forth...
Filled only to 35,000 cu. ft. because of scarcity of hydrogen, some of the bags had difficulty in leaving the ground. The City of Detroit dragged her basket along the field, barely cleared it, came down with a gas-leak 10 mi. away in the Missouri River, luckily upon a tiny island. All the others fought electrical storms through the night. Second to land next morning was the Chevrolet entry (at Jamestown, N. Dak., 410 mi.) after her crew had thrown overboard all ballast including spare clothing to let the basket clear a high tension wire. An hour later...
...Hugo Eckener, two hangars were thrown together. Replete with comforts for 52 passengers, the LZ-129 will next year go into regular service on the South American run. Unlike the Graf Zeppelin she will be inflated with non-inflammable helium. But because helium is much more expensive than hydrogen, Dr. Eckener plans to install fireproof hydrogen ballonets inside the helium cells for use in regulating altitude. Like the Akron and the Macon, the LZ-129 (which Dr. Eckener wants to name Hindenburg) is designed and equipped throughout so that hydrogen can be used in a pinch, should helium...