Memoirs of Benjamin Franklin, Volumen 2Harper & Brothers, 1839 |
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Página 245
... suppose a tract of land or sea , of perhaps sixty miles square , unscreened by clouds and unfanned by winds during great part of a sum- mer's day , or , it may be , for several days succes- sively , till it is violently heated ...
... suppose a tract of land or sea , of perhaps sixty miles square , unscreened by clouds and unfanned by winds during great part of a sum- mer's day , or , it may be , for several days succes- sively , till it is violently heated ...
Página 253
... suppose the first mischief was done by the foreside of the whirl , the latter by the hinderside , their motion being contrary . I suppose a whirlwind or spout may be station- ary when the concurring winds are equal ; but if unequal ...
... suppose the first mischief was done by the foreside of the whirl , the latter by the hinderside , their motion being contrary . I suppose a whirlwind or spout may be station- ary when the concurring winds are equal ; but if unequal ...
Página 256
... suppose the air in a chamber at rest , no current through the room till you make a fire in the chimney . Immediately the air in the chim- ney , being rarefied by the fire , rises ; the air next the chimney flows in to supply its place ...
... suppose the air in a chamber at rest , no current through the room till you make a fire in the chimney . Immediately the air in the chim- ney , being rarefied by the fire , rises ; the air next the chimney flows in to supply its place ...
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Términos y frases comunes
acquainted affectionately America appear assemblée des notables become body called cause centrifugal force clouds cold conductors continue David Hartley dear friend degree descending earth earthquakes endeavour England equal esteem farther favour fire fluid force Francis Hopkinson FRANKLIN give Glaucon globe gout hand happiness heat Hence honour hope imagine kind letter king king's counsel labour land late leave less light live Lord Kames Marquis de Lafayette matter ment mind motion nation nature necessary never obliged observed occasion opinion paper Parliament particles pass Passy perhaps person Philadelphia Philosophical pleased pleasure Poor Richard says present punishment pyrites quantity reason received rising river salt Socrates soon spiracles spout Star Chamber suppose surface things thought tion vapour virtue warm whirl whirlwind whole wind wish write