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; with Notes and a Life of the Author, Band 6Childs & Peterson, 1840 |
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Seite 49
... air that enters the room through the air - box is fresh , though warm ; and , computing the swiftness of its motion with the areas of the holes , it is found that near ten barrels of fresh air are hourly introduced by the air - box ...
... air that enters the room through the air - box is fresh , though warm ; and , computing the swiftness of its motion with the areas of the holes , it is found that near ten barrels of fresh air are hourly introduced by the air - box ...
Seite 312
... warm with little fire ; but the air soon affects the respiration of valetudinarians , as was often remarked by that accurate observer , Dr. G. Knight , late principal librarian . An attentive observer will soon be convinced , that there ...
... warm with little fire ; but the air soon affects the respiration of valetudinarians , as was often remarked by that accurate observer , Dr. G. Knight , late principal librarian . An attentive observer will soon be convinced , that there ...
Seite 522
... air suddenly grows warm and of course lighter , the air contained in the cool funnels , being heavier , descends into the room ; and the warmer air which enters their tops , being cooled in its turn and made heavier , continues to ...
... air suddenly grows warm and of course lighter , the air contained in the cool funnels , being heavier , descends into the room ; and the warmer air which enters their tops , being cooled in its turn and made heavier , continues to ...
Inhalt
A Proposal for promoting Useful Knowledge among | 14 |
TO CADWALLADER COLDEN 4 November 1743 | 25 |
CADWALLADER COLDEN TO B FRANKLIN Dec 1744 | 32 |
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air-box America appears Aurora Borealis boat body CADWALLADER COLDEN catarrhs cause chimney cloud coals cold air common conductor continue cool Copley Medal DEAR SIR degree descending diameter distance earth EDITOR effect electricity England equal experiment feet fire fire-place flame fluid force FRANKLIN fresh funnel give glass Gulf Stream heat hygrometer inches ingenious iron JOSEPH PRIESTLEY kind letter light London magic squares mentioned mercury miles moisture motion move observed occasion paper particles pass passage perhaps perspirable Philadelphia Philosophical piece pleasure present putrid quantity rarefied received rise river round Royal Society sail salt ship side Sir John Pringle Sir William Hamilton smoke soon sound specific gravity spout stove suppose surface thing tion transit of Venus upper vapor vessel waves weight whirlwind whole wind wood