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solar flare

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solar flare

[′sō·lər ′fler]
(astrophysics)
An abrupt increase in the intensity of the H-α and other emission near a sunspot region; the brightness may be many times that of the associated plage.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

EMP

(ElectroMagnetic Pulse) A natural or man-made burst of electric or magnetic energy in the atmosphere. With frequencies below the light spectrum, a nuclear bomb, lightning strike or a device designed to emit such a pulse are sources of an EMP. A massive solar eruption (solar flare) can also disrupt communications satellites.

Weaponry specifically designed to target an area with an EMP has been speculation for decades. However, regardless of the type, the distance from the source of the EMP to an electronic device determines the amount of damage.

Data Protection
Hard drives, SSDs and flash drives are susceptible to EMP damage, whereas optical discs are not. In order to survive an EMP, drives should be stored in a protected container (see Faraday cage).
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References in periodicals archive
Solar flares are categorized by the amount of their energy.
So even a large solar flare doesn't always mean large aurorae.
Among all of the above models of various orders the effort is being for selection of a model which is most adequate for the empirical study of solar flare activity.
The researchers found that a 3D model of a solar flare correlated closely with their observations, and radio observations also revealed an intermittent storm of noise that captured the slipping nature of the magnetic reconnections.
These coronal mass ejections (CMEs), many of which begin as solar flares from inside the sun, rip out a chunk of the sun's atmosphere as they escape its gravity.
He also sends plain messages every three hours to the Air Force Weather Agency to provide an up-to-date picture of the sun and draws sunspots daily to help forecasters predict the possibility of large solar flares like the May 12 Mother's Day event.
The increase in the hard X-ray emission over the background level caused by the solar flare was reliably detected by the SONG instrument beginning from 11:02:11 to 11:12:30 (see Figure 4).
The fuss began in the first week this month at an active region on the Sun known as 1429, with a big solar flare that was associated with a burst of solar wind and plasma known as a coronal mass ejection that thrust toward the Earth at some four million miles per hour (6.4 million kilometers per hour).
NASA warns these interconnected networks can be energized by a solar flare, causing "an avalanche of blackouts carried across continents [that] ...
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