Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3755Chemical news office., 1932 |
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Strona 213
... feet which com- pares with 60 to 64 lbs . for helium of com- mercial purity . The difference appears small at first , but when all the necessary fixed weights of an airship have been de- ducted from the lifting power of an airship with ...
... feet which com- pares with 60 to 64 lbs . for helium of com- mercial purity . The difference appears small at first , but when all the necessary fixed weights of an airship have been de- ducted from the lifting power of an airship with ...
Strona 215
... feet or more , the reflected sound of a spoken sylla- ble or note of music may arrive at the ear at the same moment as a later syllable or note which has travelled by the direct path , and so cause confusion . Generally speaking ...
... feet or more , the reflected sound of a spoken sylla- ble or note of music may arrive at the ear at the same moment as a later syllable or note which has travelled by the direct path , and so cause confusion . Generally speaking ...
Strona 219
... feet . At the opening concert there was present an orchestra of 26 pieces , which , with the organ , produced an exces- sive reverberation perceptibly spoiling the effect of sudden pauses after a loud chord . The indicated limit for ...
... feet . At the opening concert there was present an orchestra of 26 pieces , which , with the organ , produced an exces- sive reverberation perceptibly spoiling the effect of sudden pauses after a loud chord . The indicated limit for ...
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