单词 | franklin's rod |
释义 | > as lemmasFranklin's rod ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > transmission of electricity, conduction > conduction to earth > [noun] > lightning conductor conductor1761 Franklin1818 counterpoise1930 1818 J. Palmer Jrnl. Trav. U.S. 104 Franklins, or conductors, are a certain safe-guard, and generally used. a1862 S. Breck Recoll. (1877) ii. 71 Our professor of natural philosophy was desirous to erect on the old lofty tower..a lightning-rod, very properly called at that time a ‘Franklin’. 1910 Encycl. Brit. XI. 30/1 He [sc. Benjamin Franklin] planned the lightning-rod (long known as ‘Franklin's rod’), which he described and recommended to the public in 1753. < as lemmas |
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