The Works of Benjamin Franklin: Containing Several Political and Historical Tracts Not Included in Any Former Edition, and Many Letters, Official and Private, Not Hitherto Published, Volumen6Benjamin Franklin Stevens, 1882 |
Dentro del libro
Resultados 1-5 de 31
Página 2
... rarefied by the subterraneous fires , may emit fumes , blasts , & c . , which by their action , either on the water ... rarefying and expanding it , the force , where- with it endeavours to escape , may shake the earth ; hence there ...
... rarefied by the subterraneous fires , may emit fumes , blasts , & c . , which by their action , either on the water ... rarefying and expanding it , the force , where- with it endeavours to escape , may shake the earth ; hence there ...
Página 36
... rarefied by heat , and condensed by cold , that is , the same quantity of air takes up more space when warm than when cold . This may be shown by several very easy experiments . Take any clear glass bottle ( a Florence flask stript of ...
... rarefied by heat , and condensed by cold , that is , the same quantity of air takes up more space when warm than when cold . This may be shown by several very easy experiments . Take any clear glass bottle ( a Florence flask stript of ...
Página 37
... rarefied air will rise in common air , till it either comes to air of equal weight , or is by cold reduced to its for- mer density . A fire , then , being made in any chimney , the air over the fire is rarefied by the heat , becomes ...
... rarefied air will rise in common air , till it either comes to air of equal weight , or is by cold reduced to its for- mer density . A fire , then , being made in any chimney , the air over the fire is rarefied by the heat , becomes ...
Página 43
... rarefied , rises to the ceiling , and its place is supplied by the lower air of the room , which flows gradually towards the stove , and is there warmed , and rises in its turn , so that there is a continual circulation till all the air ...
... rarefied , rises to the ceiling , and its place is supplied by the lower air of the room , which flows gradually towards the stove , and is there warmed , and rises in its turn , so that there is a continual circulation till all the air ...
Página 71
... rarefied by the fermentation , its motion must be increased ; but , as it seems to me that it must by its expansion resist the arterial blood behind it , as much as it accelerates the venal blood before it , I am still somewhat ...
... rarefied by the fermentation , its motion must be increased ; but , as it seems to me that it must by its expansion resist the arterial blood behind it , as much as it accelerates the venal blood before it , I am still somewhat ...
Contenido
1 | |
14 | |
25 | |
32 | |
65 | |
79 | |
87 | |
93 | |
100 | |
105 | |
111 | |
114 | |
121 | |
127 | |
136 | |
143 | |
159 | |
171 | |
177 | |
183 | |
190 | |
197 | |
203 | |
211 | |
219 | |
232 | |
245 | |
256 | |
260 | |
269 | |
348 | |
368 | |
381 | |
387 | |
397 | |
404 | |
410 | |
417 | |
423 | |
426 | |
432 | |
438 | |
448 | |
454 | |
461 | |
496 | |
505 | |
543 | |
564 | |
570 | |
577 | |
Otras ediciones - Ver todas
Términos y frases comunes
American Philosophical Society appears ascending body bottom CADWALLADER COLDEN cause chimney cloud coals cold air common conductor continually cool DEAR SIR degree descending diameter distance earth EDITOR effect electricity England equal experiment fire fire-place flame fluid force FRANKLIN funnel give glass Gulf Stream heat houses hygrometer inches ingenious iron JARED ELIOT JOSEPH PRIESTLEY kind less letter light London magic squares matter mentioned method moisture motion move observed occasion paper particles pass passage perhaps perspirable Philadelphia Philosophical piece plate pleasure present printed quantity rarefied received rise river round Royal Society salt ship side Sir John Pringle smoke specific gravity spout stove suppose surface thing tion Transit of Mercury transit of Venus upper vapor vessel ward air waves weight whirl whirlwind whole wind wood
Pasajes populares
Página 228 - I am very sorry, that you intend soon to leave our hemisphere. America has sent us many good things, gold, silver, sugar, tobacco, indigo, &c. ; but you are the first philosopher, and indeed the first great man of letters, for whom we are beholden to her.
Página 23 - That, as we enjoy great advantages from the inventions of others, we should be glad of an opportunity to serve others by any invention of ours; and this we should do freely and generously.
Página 435 - Convincing sovereigns of the folly of wars may perhaps be one effect of it, since it will be impracticable for the most potent of them to guard his dominions. Five thousand balloons, capable of raising two men each, could not cost more than five ships of the line; and where is the prince who can afford so to cover his country with troops for its defence, as that ten thousand men descending from the clouds might not in many places do an infinite deal of mischief, before a force could be brought together...
Página 426 - Such changes in the superficial parts of the globe seemed to me unlikely to happen, if the earth were solid at the centre. I therefore imagined that the internal parts might be a fluid more dense, and of greater specific gravity than any of the solids we are acquainted with ; which therefore might swim in or upon that fluid. Thus the surface of the globe would be a shell, capable of being broken and disordered by the violent movements of the fluid on which it rested.
Página 396 - That the vegetable creation should restore the air which is spoiled by the animal part of it, looks like a rational system, and seems to be of a piece with the rest.
Página 16 - ... all philosophical experiments that let light into the nature of things, tend to increase the power of man over matter and multiply the conveniences or pleasures of hie.
Página 343 - ... were, by the smoothness of the water over them, which might possibly be occasioned, he thought, by some oiliness proceeding from their bodies. A gentleman from Rhode Island told me, it had been remarked, that the harbor of Newport was ever smooth while any whaling vessels were in it : which probably arose from hence, that the blubber which they sometimes bring loose in the hold, or the leakage of their barrels, might afford some oil, to mix with that water, which from time to time they pump out...
Página 365 - I wish it were possible, from this instance, to invent a method of embalming drowned persons in such a manner that they may be recalled to life at any period, however distant; for having a very ardent desire to see and observe the state of America a hundred years hence, I should prefer to any ordinary death the being immersed in a cask of Madeira wine with a few friends till 1 that time, to be then recalled to life by the solar warmth of my dear country!
Página 550 - ... with their food by slovenly workmen, who went to their meals after handling the metal, without well washing their fingers, so that some of the metalline particles were taken off by their bread and eaten with it.
Página 236 - The fingers should be first a little soaked in water, and quite free from all greasiness ; a little fine chalk upon them is sometimes useful, to make them catch the glass and bring out the tone more readily.