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He could "read a book at a distance of one and a half feet". [2] However, he did little to establish his claim or to develop the device. In 1854 Lindsay took out a patent for his system of wireless telegraphy through water. This was the culmination of many years' painstaking experimentation in various parts of the country.
English scientist Stephen Gray made the distinction between insulators and conductors. 1745: German physicist Ewald Georg von Kleist and Dutch scientist Pieter van Musschenbroek invented Leyden jars. 1752: American scientist Benjamin Franklin showed that lightning was electrical by flying a kite and explained how Leyden jars work. 1780
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 ...
The lightning rod invented by Benjamin Franklin in 1752 suggested a way of avoiding the common problem of lightning causing damage to the wooden sailing ships of the period. In Britain, the Royal Navy chose a protection system with a chain draped into the sea from the top of the mast as a lightning conductor. This system proved unsatisfactory ...
Rudolph Arnold Dolmetsch (born 8 November 1906 – died December 1942) was a harpsichordist, viol player, conductor and composer, a member of the famous Dolmetsch family of musicians. Dolmetsch died at the age of 36 in the sinking of the SS Ceramic in 1942. His Concerto for clarinet, harp and orchestra (1939) was revived and recorded in 2019.
If the lightning strikes were independent events, the probability of being hit seven times would be (1:10000) 7 = 1:10 28 or 1 in 10,000,000,000,000,000,000,000,000,000 (1 in 10 octillion). These numbers do not quite apply to Sullivan, however, who by the nature of his work and his physical location was exposed to more storms than the average ...
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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 ...