1797 PHYSICS ELECTRICITY Franklin Rods LIGHTNING

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LIGHTNING Encyclopaedia Britannica; Or a Dictionary of Arts, Sciences, and Miscellaneous Literature;Constructed on a Plan, by Which the Different Sciencesand Arts are digested into the Form of Distinct Treatises or Systems Edinburgh: A. Bell and C. Macfarquhar 1797 We are pleased to offer for auction a rare article--a section on the history and science of lightning extracted from an incomplete copy of the 1797 Encyclopaedia Britannica . This article provides a fascinating look into the understanding of several aspects of science and natural phenomena from the viewpoint of the late 18th century. The article covers topics such as: the different appearances of lightning ~~ its seeming omnipresence ~~remarkable effects of lightning ~~ accounts of lightning striking a bull and a horse and the extraordinary effects ~~ similarity between electric sparks and lightning ~~why it assumes a zig zag form ~~ why lightning assumes the form of balls (fire balls) ~~phenomena of lightning accounted for ~~ thunderstorms ~~use of conducting rods ~~whether knobbed or pointed conductors are preferable ~~ pros and cons of each ~~ Franklin and Wilson~~ Lord Mahon’s theory of lightning ~~ experiments with conductors ~~ remarkable accident by an electrical explosion from the earth ~~arguments by Earl Stanhope in favor of his system ~~ supposed effects of the returning stroke ~~ great strength of the returning stroke in certain cases ~~ experiments with an insulated conductor ~~ deception in Earl Stanhope’s experiments ~~ returning stroke not different from that of a charged Leyden phial ~~ difficulties in his Stanhope’s hypothesis ~~ of the quantity of electricity in any given portion of the earth’s surface ~~ directions for conducting rods ~~ why lightning sometimes kills ~~ why it sometimes marks bodies with the form of the cross ~~artificial lightning ~~ and more. CONDITION & DETAILS 4to (Quarto). 10.75 x 8.5 inches (268 x 212mm). Pages 56-72. The article is dis-bound from an incomplete volume of the 1797 Encyclopaedia Britannica . CONDITION: The article is clean and in excellent condition. This important article would make an excellent addition to a wide variety of collections. Thanks so much for your interest and good luck in your bidding. Please feel free to e-mail any questions you might have. ~If unable to bid at the allotted time, we recommend either bidding early or using a service such as JustSnipe (available on the Internet) and highly reliable. ~ Please click to see more rare books & prints at auction on eBay. ~We offer a global book search service and are happy to ship internationally. ~ We buy regularly and very widely. If interested in selling a single volume or an entire collection or estate, please feel free to e-mail us. We prefer to quote shipping rates directly and exactly, so please just e-mail us with your address and country and we will promptly do so. navigation alchemy scientific instruments mathematics geometry calculus math trigonometry science calculation measurement algebra applied mathematics telescopes microscopes astronomy camera lucida colors science scientific instruments physics alchemy chemistry optics mathematics inventions technology warfare military mathematics geometry calculus math trigonometry science calculation measurement algebra applied mathematics pure mathematics determinant mathematics atomic weights automata conic sections greeks astronomy planets stars principia probability quantum theory submarine welfare logic thermodynamics topology xrays calculating machines clocks horology automata computing machines atomic physics nuclear energy power nuclear bomb quantum mechanics mathematics xrays Einstein molecules sommerfeld energy rayleigh hydrogen x ray Thomson Bromwich Becquerel, Bohr, Chadwick, Curie, Geiger, Millikan, McClennan, Lorentz, Hull, Larmor, Stokes, Sommerfeld, Soddy, Rutherford, Richardson, Ramsay, Gray, and ThomsonCompasses (Magnetic, Declination... read more

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