The Works of Benjamin Franklin: Containing Several Political and Historical Tracts Not Included in Any Former Ed., and Many Letters Official and Private, Not Hitherto Published; with Notes and a Life of the Author, Volume 6Hillard, Gray,, 1838 - Statesmen |
From inside the book
Results 1-5 of 68
Page 36
... turn it up , place its mouth in a vessel of water , and remove it from the fire ; then , as the air within cools and contracts , you will see the water rise in the neck of the bottle , supplying the place of just so much air as was ...
... turn it up , place its mouth in a vessel of water , and remove it from the fire ; then , as the air within cools and contracts , you will see the water rise in the neck of the bottle , supplying the place of just so much air as was ...
Page 37
... turn , and rises likewise ; the place of the air thus carried out of the room , is supplied by fresh air coming in through doors and windows , or , if they be shut , through every cre- vice with violence , as may be seen by holding a ...
... turn , and rises likewise ; the place of the air thus carried out of the room , is supplied by fresh air coming in through doors and windows , or , if they be shut , through every cre- vice with violence , as may be seen by holding a ...
Page 43
... turn , so that there is a continual circulation till all the air in the room is warmed . The air , too , is gradually changed , by the stove - door's being in the room , through which part of it is continually passing , and that makes ...
... turn , so that there is a continual circulation till all the air in the room is warmed . The air , too , is gradually changed , by the stove - door's being in the room , through which part of it is continually passing , and that makes ...
Page 46
... turn in . ( iv , iv ) The air - box is composed of the two middle plates , D , E and F , G. The first has five thin ledges or partitions cast on it , two inches deep , the edges of which are received in so many pair of ledges cast in ...
... turn in . ( iv , iv ) The air - box is composed of the two middle plates , D , E and F , G. The first has five thin ledges or partitions cast on it , two inches deep , the edges of which are received in so many pair of ledges cast in ...
Page 48
... turns over the top of the air - box , and de- scends between it and the back plate to the holes in the bottom plate , heating , as it passes , both plates of the air - box , and the said back plate ; the front plate , bottom and side ...
... turns over the top of the air - box , and de- scends between it and the back plate to the holes in the bottom plate , heating , as it passes , both plates of the air - box , and the said back plate ; the front plate , bottom and side ...
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Other editions - View all
Common terms and phrases
air-box AMERICAN PHILOSOPHICAL SOCIETY appears body bottom plate CADWALLADER COLDEN cause chim chimney cloud coals cold air common continually cool DEAR SIR degree descending diameter distance door earth EDITOR effect electricity England equal experiment false back fire fire-place flame fluid force FRANKLIN fresh funnel give glass Gulf Stream heat hollow hygrometer inches ingenious iron JARED ELIOT JOSEPH PRIESTLEY less letter light London magic squares matter mentioned moisture motion move obliged observed occasion paper particles pass passage perhaps perspirable Philadelphia Philosophical piece 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 vapor vessel warm air waves weight whirl whirlwind wind wood
Popular passages
Page 244 - 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.
Page 453 - 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 to repel them...
Page 444 - 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.
Page 414 - 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.
Page 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.
Page 457 - They were indeed rendered so faint in passing through it, that, when collected in the focus of a burning-glass, they would scarce kindle brown paper. Of course, their summer effect in heating the earth was exceedingly diminished. Hence the surface was early frozen. Hence the first snows remained on it unmelted, and received continual additions. Hence perhaps the winter of 1783-4, was more severe than any that happened for many years.
Page 238 - In a few hours (I cannot now be exact as to the time) the black, being warmed most by the sun, was sunk so low as to be below the stroke of the sun's rays; the dark blue almost as low, the lighter blue not quite so much as the dark, the other colours less as they were lighter; and the quite white remained on the surface of the snow, not having entered it at all.
Page 574 - Our ancient correspondence used to have something philosophical in it. As you are now more free from public cares, and I expect to be so in a few months, why may we not resume that kind of correspondence ? Our much regretted friend Winthrop once made me the compliment, that I was good at starting game for philosophers ; let me try if I can start a little for you.
Page 361 - ... 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...
Page 358 - The same gentleman told me, he had heard it was a practice with the fishermen of Lisbon when about to return into the river (if they saw before them too great a surf upon the bar, which they apprehended might fill their boats in passing) to empty a bottle or two of oil into the sea, which would suppress the breakers, and allow them to pass safely. A confirmation of this I have not since had an opportunity of obtaining; but discoursing of it with another person, who had often been in the Mediterranean,...