The Complete Works of Count Rumford, 3. kötet

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Estes adn Lauriat, 1874

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46. oldal - ... more generally known, and more attended to, very important improvements in the management of heat could not fail to result from it.
176. oldal - ... improvements in that branch of cookery are possible. So little has this matter been an object of inquiry that few, very few indeed I believe, among the millions of persons who for so many ages have been daily employed in this process, have ever given themselves the trouble to bestow one serious thought upon the subject. ' The cook knows from experience that if his joint of meat be kept a certain time immersed in boiling water it will be done, as it is called in the language of the kitchen ; but...
6. oldal - Though it is generally acknowledged that there is a great waste of fuel in all countries, arising from ignorance and carelessness in the management of fire, yet few — very few, I believe — are aware of the real amount of this waste.
234. oldal - I am even sanguine enough to expect that the time will come when open fires will disappear, even in our dwelling-rooms and most elegant apartments. Genial warmth can certainly be kept up, and perfect ventilation effected much better without them than with them ; and though I am myself still child enough to be pleased with the brilliant appearance of burning fuel...
3. oldal - No subject of philosophical inquiry within the limits of human investigation is more calculated to excite admiration and to awaken curiosity than fire, and there is certainly none more extensively useful to mankind. It is owing, no doubt, to our being acquainted with it from our infancy that we are not more struck with its appearance, and more sensible of the benefits we derive from it. Almost every comfort and convenience which man by his ingenuity procures for himself is obtained by its assistance,...
167. oldal - On the Construction of Kitchen Fire-places, and Kitchen Utensils, together with Remarks and Observations relating to the various Processes of Cookery, and Proposals for improving that most useful Art.
175. oldal - I believe, have taken the trouble to inquire how or in what manner those effects are produced; and whether any and what improvements in that branch of cookery are possible. So little has this matter been an object of inquiry, that few, very few indeed, I believe, among the millions of persons who for so many ages have been daily employed in this process, have ever...
46. oldal - ... is confined, and forms a barrier which not only prevents the cold winds from approaching the body of the animal, but which opposes an almost insurmountable obstacle to the escape of the heat of the animal into the atmosphere.
118. oldal - Ibs. of ice-cold -water 180 degrees ^ or to make it boil; for 3157.9 grains of charcoal are to 181.920 grains of water, as 1 of charcoal to 57.608 Ibs. of water. From the result of Mr. Lavoisier's experiments, it appeared that the quantities of heat generated in the combustion of equal weights of charcoal and dry oak, are as 1089 to 600. Hence we may conclude, that equal quantities of heat are generated by 1 Ib. of charcoal and 1.815 Ibs. of oak; consequently, that the heat generated in the combustion...
417. oldal - ... idea of the infinite importance of those improvements which are calculated to promote the comforts of the lowest classes of society. What immortal glory might any European nation obtain by following this wise example ! The emperor of China, the greatest monarch in the world, who rules over one full third part of the inhabitants of this globe, condescends to hold the plough himself one day in every year. This he does, no doubt, to show to those whose example never can fail to influence the great...

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