Radioflash
Encyclopedia
Radioflash is a term used (chiefly in sources from the United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

) in early literature on the phenomena now known more widely as electromagnetic pulse
Electromagnetic pulse
An electromagnetic pulse is a burst of electromagnetic radiation. The abrupt pulse of electromagnetic radiation usually results from certain types of high energy explosions, especially a nuclear explosion, or from a suddenly fluctuating magnetic field...

, or EMP. The term originated in the early 1950s, primarily associated with the "click" typically heard on radio receivers when a nuclear bomb was detonated. It was later discovered that the phenomena was one part of the more wide-ranging set of impacts resulting from EMPs after the detonation of nuclear and certain chemical weapons.

Instrumentation failures observed during nuclear weapons testing between 1951 and 1953 were mentioned in declassified
Declassified
Declassified is an American television series produced by Ten Worlds Productions on The History Channel that originally aired on November 9, 2004. The series takes viewers inside vaults and archives around the world to reveal the untold stories of modern history...

 military literature as attributed to "radiated radioflash". A similar term was first used in the Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 in an early theoretical publication (which contained some errors and was later corrected) on the effects of a nuclear explosion.

The term has also been used in high-energy physics in the description of a type of collective ion
Ion
An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving it a net positive or negative electrical charge. The name was given by physicist Michael Faraday for the substances that allow a current to pass between electrodes in a...

 acceleration
Acceleration
In physics, acceleration is the rate of change of velocity with time. In one dimension, acceleration is the rate at which something speeds up or slows down. However, since velocity is a vector, acceleration describes the rate of change of both the magnitude and the direction of velocity. ...

 that would take place during intense solar flares.

See also

  • Operation Fishbowl
    Operation Fishbowl
    Operation Fishbowl was a series of high altitude nuclear tests in 1962 that were carried out by the United States as a part of the larger Operation Dominic nuclear test program.-Introduction:...

  • Operation Grapple
    Operation Grapple
    Operation Grapple, and operations Grapple X, Grapple Y and Grapple Z, were the names of British nuclear tests of the hydrogen bomb. They were held 1956—1958 at Malden Island and Christmas Island in the central Pacific Ocean. Nine nuclear detonations took place during the trials, resulting in...

  • Pulsed power
    Pulsed power
    Pulsed power is the term used to describe the science and technology of accumulating energy over a relatively long period of time and releasing it very quickly thus increasing the instantaneous power.-Overview:...

  • Starfish Prime
    Starfish Prime
    Starfish Prime was a high-altitude nuclear test conducted by the United States of America on July 9, 1962, a joint effort of the Atomic Energy Commission and the Defense Atomic Support Agency ....

  • The K Project
    The K Project
    The K Project, or also Operation K, was a series of five high altitude nuclear explosions, nuclear tests performed by the Soviet Union during the years 1961 and 1962. Their purpose was to test the performance of anti-ballistic missiles of the ABM System A and their resistance against nuclear blasts...

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