Search results
Results from the WOW.Com Content Network
In 1920, Plauson published a research journal on the subject, titled "Production and Utilization of the Atmospheric Electricity" (Gr., Gewinnung und Verwertung der Atmosphärischen Elektrizität). A second, expanded edition of his journal was published later the same year. A copy of that edition is in the British Library at shelf mark 8754.b.36.
Aron was born in Kempen (Kępno), in modern-day Poland, at the time a shtetl in the Province of Posen.His father was a chazzan and merchant. [1] The family wanted him to train as a Jewish scholar or scrivener, however wealthy relatives made it possible for him to attend from 1862 the high school at Kölln, Berlin and after graduating in 1867, to study at the University of Berlin. [1]
Stephen Gray discovered the importance of insulators and conductors. C. F. du Fay seeing his work, developed a "two-fluid" theory of electricity. [10] In the 18th century, Benjamin Franklin conducted extensive research in electricity, selling his possessions to fund his
A resident of West Deptford Township, Herman and his Democratic running mate H. Donald Stewart were elected to represent the 3rd Legislative District in the New Jersey General Assembly in 1973, the first election in which the 40-district legislature was established under the terms of the 1964 U.S. Supreme Court decision in Reynolds v.
where is the length of the conductor, measured in metres [m], A is the cross-section area of the conductor measured in square metres [m 2], σ is the electrical conductivity measured in siemens per meter (S·m −1), and ρ is the electrical resistivity (also called specific electrical resistance) of the material, measured in ohm-metres (Ω·m ...
Electrical conductivity (or specific conductance) is the reciprocal of electrical resistivity. It represents a material's ability to conduct electric current. It is commonly signified by the Greek letter σ , but κ (especially in electrical engineering) [citation needed] and γ [citation needed] are sometimes
Thomas Commerford Martin (July 22, 1856 [1] – May 17, 1924) was a British-American electrical engineer and editor. Martin was born in Limehouse , England . His father worked with Lord Kelvin and other pioneers of submarine telegraph cables , and Martin worked on the cable-laying ship SS Great Eastern .
The electrical resistance of a uniform conductor is given in terms of resistivity by: [40] = where ℓ is the length of the conductor in SI units of meters, a is the cross-sectional area (for a round wire a = πr 2 if r is radius) in units of meters squared, and ρ is the resistivity in units of ohm·meters.