Memoirs of Benjamin Franklin, Volumen 2M'Carty & Davis, 1840 |
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Página 216
... heat and cold , would be equally tempted by a moderate climate to abandon latitudes peculiarly adapted to the production of these things , which are by nature denied to us ; and for the whole of which we should , without their ...
... heat and cold , would be equally tempted by a moderate climate to abandon latitudes peculiarly adapted to the production of these things , which are by nature denied to us ; and for the whole of which we should , without their ...
Página 256
... heat on the land , in a particular region ( the sun having shone on it perhaps several days , while the surround- ing countries have been screened by clouds ) 38. It is a common thing to see clouds at the lower air is rarified and rises ...
... heat on the land , in a particular region ( the sun having shone on it perhaps several days , while the surround- ing countries have been screened by clouds ) 38. It is a common thing to see clouds at the lower air is rarified and rises ...
Página 257
... heat- ing it : so the electrical fire , or lightning , creating a violent repulsion between the par- ticles of the metal it passes through , the metal is fused .. 44. Dangerous , therefore , is it to take shel- ter under a tree , during ...
... heat- ing it : so the electrical fire , or lightning , creating a violent repulsion between the par- ticles of the metal it passes through , the metal is fused .. 44. Dangerous , therefore , is it to take shel- ter under a tree , during ...
Página 261
... heat . * We have also melted gold , silver , and copper , in small quantities , by the electrical flash . The manner is this : take leaf - gold , leaf - sil- ver , or leaf - gilt copper , commonly called leaf- brass , or Dutch gold ...
... heat . * We have also melted gold , silver , and copper , in small quantities , by the electrical flash . The manner is this : take leaf - gold , leaf - sil- ver , or leaf - gilt copper , commonly called leaf- brass , or Dutch gold ...
Página 266
... heating them , when Fahrenheit's thermometer is above 70 ; so when colder , if the operator puts a small flat bottle of spirits in his bosom , or a close pocket , with the spoon , some little time be- fore he uses them , the heat of his ...
... heating them , when Fahrenheit's thermometer is above 70 ; so when colder , if the operator puts a small flat bottle of spirits in his bosom , or a close pocket , with the spoon , some little time be- fore he uses them , the heat of his ...
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