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 115
... light , and indeed , I think , all bodies do . It does not follow , that , because we do not see the light , none is emitted . Some men can see where others are entirely in the dark ; and some animals , as owls , bats , & c . , see in ...
... light , and indeed , I think , all bodies do . It does not follow , that , because we do not see the light , none is emitted . Some men can see where others are entirely in the dark ; and some animals , as owls , bats , & c . , see in ...
Seite 116
... light from the lumin- ous body . I am persuaded , that a careful attention to the phenomena in Sir Isaac's Optics ... light , without any other mixture , makes no im- pression on any other sense except the sight ; that the sense of heat ...
... light from the lumin- ous body . I am persuaded , that a careful attention to the phenomena in Sir Isaac's Optics ... light , without any other mixture , makes no im- pression on any other sense except the sight ; that the sense of heat ...
Seite 192
... light which fills this circle of eight miles diameter was contained , when it first left the candle , within a circle of half an inch diameter . If the density of light , in these circum- stances , be as those circles to each other ...
... light which fills this circle of eight miles diameter was contained , when it first left the candle , within a circle of half an inch diameter . If the density of light , in these circum- stances , be as those circles to each other ...
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