"Physical exertion" Quotes from Famous Books
 ... humidity and health has led many institutions, such as hospitals, schools, and factories, to regulate the humidity of the atmosphere as carefully as they do the temperature. Too great humidity is enervating, and not conducive to either mental or physical exertion; on the other hand, too dry air is equally harmful. In summer the humidity conditions cannot be well regulated, but in winter, when houses are artificially heated, the humidity of a room can be increased by placing pans of water near the registers ...
— General Science • Bertha M. Clark
... with their heads turned towards the entrance, and by the rapid fanning of their wings, a current of air is blown briskly out of the hive, and an equal current drawn in. This important office is one which requires great physical exertion on the part of those to whom it is entrusted; and if their proceedings are carefully watched, it will be found that the exhausted ventilators, are, from time to time, relieved by fresh detachments. If the ...
— Langstroth on the Hive and the Honey-Bee - A Bee Keeper's Manual • L. L. Langstroth
... night, and not until she had made a hurried walk across the country to Arden, when Nancy stole into the house. Her ears told her that Tom was lost in slumber, and she crept to her room, fastening the door with the back of a chair wedged firmly beneath the knob. She was breathing fast—this time from physical exertion. Her skirt showed one or two rents where, in her haste, it had been forced through stiff underbrush, and the knuckles of her hands were stained with fresh earth, as though she might have crouched ...
— Sunlight Patch • Credo Fitch Harris
... after a while, but the physical exertion had done him good. The languid blood flowed in a better tide in his veins and his mind became more keen. There must be some way out of this. Youth could not give up hope. It was incredible, impossible that he should remain always here, shut off from that wonderful ...
— The Texan Star - The Story of a Great Fight for Liberty • Joseph A. Altsheler
... requires all its available resources for the growth and development which is so characteristic of this biological and psychological epoch; hence it may be ruinous for the future of the girl if at this time the same strain is put upon her as on the adult, whether in the direction of study, physical exertion, or social excitement, and of course the voice must suffer with all the rest. The farmer who would attempt to work the colt of a year or two old as he does the horse of four or five would be regarded ...
— Voice Production in Singing and Speaking - Based on Scientific Principles (Fourth Edition, Revised and Enlarged) • Wesley Mills
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