The Year-book of Facts in Science and ArtCharles W. Vincent, James Mason Simpkin, Marshall, and Company, 1843 |
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Seite 38
... metal was alloyed with about the same proportion of zinc , which accounted for the good reputation which it enjoyed for durability . Prof. Faraday , Mr. Phillips , and Mr. Taylor , have been consulted by the Admiralty upon the ...
... metal was alloyed with about the same proportion of zinc , which accounted for the good reputation which it enjoyed for durability . Prof. Faraday , Mr. Phillips , and Mr. Taylor , have been consulted by the Admiralty upon the ...
Seite 40
... metal in heating and forging does not diminish so much . THE HOT - BLAST PATENT . THIS patent expired on the 11th of September for England , and on the 1st of October for Scotland . Besides being of great national benefit , it has ...
... metal in heating and forging does not diminish so much . THE HOT - BLAST PATENT . THIS patent expired on the 11th of September for England , and on the 1st of October for Scotland . Besides being of great national benefit , it has ...
Seite 43
... metal . The plan he had adopted was , to bring round , and in contact with the flue , a strip of the metal , and to attach to it the spring of an alarum - bell , so as to go off on the melting of the metal . The degree of heat at which ...
... metal . The plan he had adopted was , to bring round , and in contact with the flue , a strip of the metal , and to attach to it the spring of an alarum - bell , so as to go off on the melting of the metal . The degree of heat at which ...
Seite 44
... metal , from 200 ° Fahr . to any limit that might be thought desirable ; and thus a succession of warnings might be given , should the heat of the flue go on increasing . Another useful application of fusible metal to stoves , and which ...
... metal , from 200 ° Fahr . to any limit that might be thought desirable ; and thus a succession of warnings might be given , should the heat of the flue go on increasing . Another useful application of fusible metal to stoves , and which ...
Seite 47
... metal . The plan he had adopted was , to bring round , and in contact with the flue , a strip of the metal , and to attach to it the spring of an alarum - bell , so as to go off on the melting of the metal . The degree of heat at which ...
... metal . The plan he had adopted was , to bring round , and in contact with the flue , a strip of the metal , and to attach to it the spring of an alarum - bell , so as to go off on the melting of the metal . The degree of heat at which ...
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Beliebte Passagen
Seite 219 - Scott's Ivanhoe. Scott's Kenilworth. Scott's Lady of the Lake. Scott's Lay of the Last Minstrel. Scott's Marmion. Scott's Quentin Durward.
Seite 221 - Winkles's English Cathedrals. ARCHITECTURAL AND PICTURESQUE ILLUSTRATIONS OF THE CATHEDRAL CHURCHES OF ENGLAND AND WALES. New Edition, with the MANCHESTER CATHEDRAL. 186 Plates, beautifully engraved by B. WINKLES; with Historical and Descriptive Accounts of the various Cathedrals. In three handsome vols.
Seite 113 - ... matter, in warm climates, to study moderation in eating, and men can bear hunger for a long time under the equator; but cold and hunger united very soon exhaust the body. " The mutual action between the elements of the food and the oxygen conveyed by the circulation of the blood to every part of the body is the source of animal heat. " All living creatures whose existence depends on the absorption of oxygen possess within themselves a source of heat independent of surrounding objects.
Seite 113 - Food is either applied in the increase of the mass of a structure (ie, in nutrition), or it is applied in the replacement of a structure wasted (ie, in reproduction). The primary condition for the existence of life is the reception and assimilation of food. But there is another condition equally important — the continual absorption of oxygen from the atmosphere. All vital activity results from the mutual action of the oxygen of the atmosphere and the elements of food.
Seite 153 - Dr. Binns says the discovery is due to Mr. Gardner : — " Horn to procure sleep. — Let him turn on his right side ; place his head comfortably on the pillow, so that it exactly occupies the angle a line drawn from the head to the shoulder would form ; and then, slightly closing his lips, take rather a full inspiration, breathing as much as he possibly can through the nostrils. This, however, is not absolutely necessary, as some persons breathe always through their mouths during sleep, and rest...
Seite 153 - The attention must now be fixed upon the action in which the patient is engaged. He must depict to himself that he sees the breath passing from his nostrils in a continuous stream...
Seite 113 - ... Physiology has sufficiently decisive grounds for the opinion, that every motion, every manifestation of force, is the result of a transformation of the structure or of its substance ; that every conception, every mental affection, is followed by changes in the chemical nature of the secreted fluids ; that every thought, every sensation, is accompanied by a change in the composition of the substance of the brain.
Seite 153 - He must depict to himself that he sees the breath passing from his nostrils in a. continuous stream ; and the very instant that he brings his mind to conceive this apart from all other ideas, consciousness and memory depart, imagination slumbers, fancy becomes dormant, thought subdued ; the sentient faculties lose their susceptibility ; the vital or ganglionic system assumes the sovereignty ; and, as we before remarked, he no longer wakes, but sleeps.
Seite 215 - Miniature French Dictionary, in French and English, and English and French : comprising all the words in general use. The remarkably comprehensive nature and compact size of this little dictionary admirably fit it for the student and tourist. Neatly bound in roan, 4s. morocco, gilt edges, 5s. 6d.
Seite 117 - The regulator and the air passages open, and the machine supplies itself with more coals. The body, in regard to the production of heat and of force, acts just like one of these machines. With the lowering of the external temperature, the respirations become deeper and more frequent ; oxygen is supplied in greater quantity and of greater density ; the change of matter is increased, and more food must be supplied, if the temperature of the body is to remain unchanged.