Word: ratings
(lookup in dictionary)
(lookup stats)
Dates: during 1930-1939
Sort By: most recent first
(reverse)
Before the plane began descending at 1,000 feet per minute (normal airline descent rate 300 f.p.m.), the passengers' masks were piped to a mixture of 20% oxygen, 80% helium and they experienced no ear pains. Passengers were told that ear plugging was due to failure of the ears to equalize inner and outer pressure in descent, that highly diffusible helium spreads more swiftly than air through the passages from nose to ears, keeps pressure reasonably even...
...continent, 330 college students last week were being trained with National Youth Administration money ($100,000 in all) to go into the most deadly activity in U. S. aviation-amateur flying. Vanguard of a host of private pilots that Civil Aeronautics Authority hopes to turn out at the rate of 20,000 a year from hundreds of U. S. colleges, they will have better basic training than the run of cornfield fliers...
...Krogh pointed out that the oxygen intake among animals varies enormously according to bodily activity. Per kilogram of body weight, the sluggish mussel uses only 22 cubic centimetres of oxygen per minute while the busy bee consumes 17,000 cc. Man, whose activity rate varies considerably, takes...
...racquets court costs only $50,000, has no royal recesses, is a 60-by-30-ft., four-wall court in which its few devotees play the fastest racquet game of all. The bats have small circular heads with long shafts, cost about $8, break at an alarming rate. The balls, worth about 60?, are made of tightly wrapped strips of cloth wound with twine and covered like a baseball, are slightly smaller than a golf ball, have put players' eyes out. With recovering, costing about 10?, balls can be made to last for 100 years. Played like four-wall...
...later chief) of construction of the airship R100, sailed with her on the first trip to Canada. In 1931 he formed an airplane company, saw it grown to 1,000 employes when he resigned last April. Ordeal to the contrary, Author Shute declares he is no alarmist. Average casualty rate in air raids, he says, is one per bomb; the rate of death is one to three casualties; hence three bombs are needed to kill one civilian. Thus, Ordeal's typical air raid wounds only about 67,000, kills little more than...