The Works of Dr. Benjamin FranklinW. Suttaby, 1809 - 454 頁 |
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... Electricity Curious Effect of Oil on Water .286 257 300 On the stilling of Waves by means of Oil .... 302 Extract of a Letter on the same . 309 Number of Deaths , in Philadelphia , by Inoculation313 Answer to the preceding .. 314 ...
... Electricity Curious Effect of Oil on Water .286 257 300 On the stilling of Waves by means of Oil .... 302 Extract of a Letter on the same . 309 Number of Deaths , in Philadelphia , by Inoculation313 Answer to the preceding .. 314 ...
第 90 頁
... electricity had been least explored . The attractive power of am- ber is mentioned by Theophrastus and Pliny , and ... electricity , and the light and noise produced by it . In 1709 , Hawkesbec com- municated some important observations ...
... electricity had been least explored . The attractive power of am- ber is mentioned by Theophrastus and Pliny , and ... electricity , and the light and noise produced by it . In 1709 , Hawkesbec com- municated some important observations ...
第 91 頁
... electricity , which he called vitreous and resinous ; the former produced by rubbing glass , the latter from excited ... electric fluid , and thus to produce phenomena which had been hitherto unobserved . They killed small birds , and ...
... electricity , which he called vitreous and resinous ; the former produced by rubbing glass , the latter from excited ... electric fluid , and thus to produce phenomena which had been hitherto unobserved . They killed small birds , and ...
第 92 頁
... electricity . We give him the honour of this , without hesitation ; al- though the English have claimed it for their coun- tryman , Dr. Watson . Watson's paper is dated January 21 , 1748 ; Franklin's July 11 , 1747 : se- veral months ...
... electricity . We give him the honour of this , without hesitation ; al- though the English have claimed it for their coun- tryman , Dr. Watson . Watson's paper is dated January 21 , 1748 ; Franklin's July 11 , 1747 : se- veral months ...
第 93 頁
... electricity and lightning , and knowing the power of points in repelling bodies charged with electricity , and in conducting their fire silently and imperceptibly , he suggested the idea of securing houses , ships , & c . from being ...
... electricity and lightning , and knowing the power of points in repelling bodies charged with electricity , and in conducting their fire silently and imperceptibly , he suggested the idea of securing houses , ships , & c . from being ...
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