Scientific Research and Human WelfareMacmillan, 1924 - 406 lappuses |
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Bieži izmantoti vārdi un frāzes
acid agriculture alfalfa animals antitoxin Babcock test bacteria battery electricity became began Bessemer process breeding carbon cause caustic soda cement cent CHAPTER cheap cheaper chemical chemist chemistry coal coal tar color commercial cost crops developed devised diphtheria discovered discovery disease early efficient electric eliminated energy experiment stations experimental fact farmers fibers foods formerly fuel furnace furnished gas mantle glass grain heat hundred idea important improvements increased industry insects investigations iron knowledge known laboratory last century Leblanc process light machines manufacture materials mathematics metal methods milk million dollars modern nineteenth century nitric acid organic paper patient plants possible pounds power machinery practical present principles problems quantities recent research workers rubber scientific research scientist soda soil steam engine steel studies substances sugar tests tion tricity types typhoid typhoid fever United wheat wire yellow fever yield
Populāri fragmenti
31. lappuse - It has been wisely said, that he who makes two blades of grass grow where but one grew before, is a public benefactor.
15. lappuse - Turning now to the question how the atmosphere produces decomposition of organic substances, we find that a flood of light has been thrown upon this most important subject by the philosophic researches of M. Pasteur, who has demonstrated by thoroughly convincing evidence that it is not to its oxygen or to any of its gaseous constituents that the air owes this property, but to minute particles suspended in it, which are the germs of various low forms of life, long since revealed by the microscope,...
15. lappuse - What would be most desirable would be to push those studies far enough to prepare the road for a serious research into the origin of various diseases.
351. lappuse - It is a sublime conception of God which is furnished by science, and one wholly consonant with the highest ideals of religion, when it represents Him as revealing Himself through countless ages in the development of the earth as an abode for man and in the age-long inbreathing of life into its constituent matter, culminating in man with his spiritual nature and all his Godlike powers.
4. lappuse - Do you realize that within the lifetime of men now living, within a hundred years, or 130 years at most, all the external conditions under which man lives his life on this earth have been more completely revolutionized than during all the ages of recorded history which preceded ? My great-grandfather lived essentially the same kind of a life, so far as external conditions were concerned, as did his Assyrian prototype 6,000 years ago.
13. lappuse - scoop out a hole in a brick. Put into it some sweet basil, crushed. Lay a second brick upon the first, so that the hole may be perfectly covered. Expose the two bricks to the sun, and at the end of a few days the smell of sweet basil, acting as a ferment, will change the herb into real scorpions.
4. lappuse - ... carry him. He dug his ditch, he mowed his hay, he did all the operations of his industrial life, with the power of his own two arms, or the power of his wife's two arms, with an occasional lift from his horse or his ox. He carried a dried potato in his pocket to keep off rheumatism, and he worshiped his God in almost the same superstitious way.
19. lappuse - By direction of the Secretary of War a Board of Medical Officers is appointed to meet at Camp Columbia, Quemados, Cuba for the purpose of pursuing scientific investigations with reference to the infectious diseases prevalent on the Island of Cuba.
38. lappuse - ... stage, are again repeated. She is cheered by kind words and the information that it will soon be over and she freed forever from what now afflicts her; she is enjoined to be calm and to keep quiet and still; and with assistance at hand to hold her struggling form, the operation is commenced. But of what avail are all her attempts at fortitude! At the first clear, crisp cut of the scalpel, agonizing screams burst from her, and with convulsive efforts she endeavors to leap from the table; but force...
14. lappuse - Alcoholic Fermentation, in which he concluded that the deduplication of sugar into alcohol and carbonic acid is correlevant to a phenomena of life. These studies had the signal effect of diverting the man from the course of his previous more strictly chemical studies. It is interesting to note how slowly these views dislocated the dominant theories of Liebig.