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A lightning rod or lightning conductor (British English) is a metal rod mounted on a structure and intended to protect the structure from a lightning strike. If lightning hits the structure, it is most likely to strike the rod and be conducted to ground through a wire, rather than passing through the structure, where it could start a fire or ...
In 1752, Franklin proposed an experiment with conductive rods to attract lightning to a leyden jar, an early form of capacitor.Such an experiment was carried out in May 1752 at Marly-la-Ville, in northern France, by Thomas-François Dalibard. [3]
Franklin's friend Kinnersley traveled throughout the eastern United States in the 1750s demonstrating man-made "lightning" on model thunder houses to show a how an iron rod placed into the ground would protect a wooden structure. He explained that lightning followed the same principles as the sparks from Franklin's electrostatic machine.
Image credits: micmac2869 Dogs can start acting like cats because they are highly impressionable. If the pooch has spent more time around felines than their own species, there’s a high chance ...
Franklin's experiment, in its initial conception, depended on the completion of Christ Church in Philadelphia, whose steeples would be sufficiently high as to attract a lightning strike. Franklin then conceived of an alternative experiment that involved flying a kite during a thunderstorm with a metal key attached to the string.
The lightning rod consists of a metal rod or conductor, typically made of copper or aluminum, that is mounted on the roof of a building and connected to the ground by means of a conductive wire. When lightning strikes, the rod provides a path of least resistance for the electrical charge, allowing it to be safely conducted to the ground rather ...
According to a new study, it doesn't really make sense to calculate a dog's age the traditional way — by multiplying its "human year" age by seven. The actual formula, it turns out, might mean ...
These dog puns will have the corg-key to your heart—fur real. The post 70 Dog Puns That Deserve a Round of A-Paws appeared first on Reader's Digest.