The Works of Dr. Benjamin FranklinW. Suttaby, 1809 - 454 頁 |
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第 1 到 5 筆結果,共 48 筆
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... experiments requiring illustration by a series of expensive engravings , have not been inserted ; as the former could only tend to revive animosity , and the latter to increase the price of this volume . to a disproportioned extent ...
... experiments requiring illustration by a series of expensive engravings , have not been inserted ; as the former could only tend to revive animosity , and the latter to increase the price of this volume . to a disproportioned extent ...
第 12 頁
... experiments , while the idea I have conceived has been fresh and strongly impressed on my imagi- nation . My father at length decided that I should be a cutler , and I was placed for some days upon trial with my cousin Samuel , son of ...
... experiments , while the idea I have conceived has been fresh and strongly impressed on my imagi- nation . My father at length decided that I should be a cutler , and I was placed for some days upon trial with my cousin Samuel , son of ...
第 90 頁
... experiments , with all the ardor and thirst for discovery which charac- terized the philosophers of that day . Of all the branches of experimental philosophy , electricity had been least explored . The attractive power of am- ber is ...
... experiments , with all the ardor and thirst for discovery which charac- terized the philosophers of that day . Of all the branches of experimental philosophy , electricity had been least explored . The attractive power of am- ber is ...
第 91 頁
... experiments , which added not a little to the science . He made the discovery of two kinds of electricity , which he called vitreous and resinous ; the former produced by rubbing glass , the latter from excited sulphur , sealing - wax ...
... experiments , which added not a little to the science . He made the discovery of two kinds of electricity , which he called vitreous and resinous ; the former produced by rubbing glass , the latter from excited sulphur , sealing - wax ...
第 92 頁
... experiments , that the electricity did not reside in the coating , as had been supposed , but in the pores of the glass itself . After a phial was charged , he removed the coating , and found that upon applying a new coating , the shock ...
... experiments , that the electricity did not reside in the coating , as had been supposed , but in the pores of the glass itself . After a phial was charged , he removed the coating , and found that upon applying a new coating , the shock ...
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