Search results
Results from the WOW.Com Content Network
Another electrode used with the same set. A violet ray is an antique medical appliance used during the early 20th century to discharge in electrotherapy. Their construction usually featured a disruptive discharge coil with an interrupter to apply a high voltage, high frequency, low current to the human body for therapeutic purposes.
An oscillator that was among the exhibits Tesla demonstrated at the World's Columbian Exposition in 1893. Tesla's electro-mechanical oscillator is a steam-powered electric generator patented by Nikola Tesla in 1893. [1][2] Later in life Tesla claimed one version of the oscillator caused an earthquake in New York City in 1898, gaining it the ...
A Tesla coil is an electrical resonant transformer circuit designed by inventor Nikola Tesla in 1891. [1] It is used to produce high-voltage, low-current, high-frequency alternating-current electricity. [2] [3] Tesla experimented with a number of different configurations consisting of two, or sometimes three, coupled resonant electric circuits.
The global electromagnetic resonance phenomenon is named after physicist Winfried Otto Schumann who predicted it mathematically in 1952. Schumann resonances are the principal background in the part of the electromagnetic spectrum [2] from 3 Hz through 60 Hz [3] and appear as distinct peaks at extremely low frequencies around 7.83 Hz (fundamental), 14.3, 20.8, 27.3, and 33.8 Hz.
German physicist Wilhelm Eduard Weber made use of the bifilar coil in his 1848 electrodynamometer. [3] Large examples were used in inventor Daniel McFarland Cook's 1871 "Electro-Magnetic Battery" [4] and Nikola Tesla's high frequency power experiments at the end of the 1800s. [5]
Tesla invented the Tesla coil during efforts to develop a "wireless" lighting system, with gas discharge light bulbs that would glow in an oscillating electric field from a high voltage, high frequency power source. [11][8] For a high frequency source Tesla powered a Ruhmkorff coil (induction coil) with his high frequency alternator.
A small coil co-ordinated with 26 subject basic frequency likewise strongly one excited. Colorado Springs Notes, 1899–1900 ( ISBN 8617073527) (Published by Nolit: Beograd, Yugoslavia, 1978) is a book compiled and edited by Aleksandar Marinčić and Vojin Popović detailing the work of Nikola Tesla at his experimental station in Colorado ...
Nikola Tesla first noted around 1891 the ability of high-frequency currents to produce heat in the body and suggested its use in medicine. [1] By 1900 application of high-frequency current to the body was used experimentally to treat a wide variety of medical conditions in the new medical field of electrotherapy.