To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
Languages
Recent
Show all languages
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

Runaway breakdown

From Wikipedia, the free encyclopedia

Runaway breakdown is a theory of lightning initiation proposed by Alex Gurevich in 1992.[1][2]

Electrons in air have a mean free path of ~1 cm. Fast electrons which move at a large fraction of the speed of light have a mean free path up to 100 times longer. Given the long free paths, an electric field can accelerate these electrons to energies far higher than that of initially static electrons. If they strike air molecules, more relativistic electrons will be released, creating an avalanche multiplication of "runaway" electrons. This process, relativistic runaway electron avalanche, has been hypothesized to lead to electrical breakdown in thunderstorms, but only when a source of high-energy electrons from a cosmic ray is present to start the "runaway" process.

The resulting conductive plasma trail, many tens of meters long, is suggested to supply the "seed" which triggers a lightning flash.

See also

References

  1. ^ A. V. Gurevich, G. M. Milikh, and R. A. Roussel-Dupre (1992) "Runaway electron mechanism of air breakdown and preconditioning during a thunderstorm," Physics Letters A, 165 : 463–468.
  2. ^ Alexander V. Gurevich & Kirill P. Zybin (May 2005). "Runaway breakdown and the mysteries of lightning". Physics Today. 58 (5): 37–43. Bibcode:2005PhT....58e..37G. doi:10.1063/1.1995746.

External links


This page was last edited on 27 November 2023, at 13:20
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.