Forums > Information Technology & Internet > Dodged a solar bullet.,
tariqbangashpk


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Subject : Dodged a solar bullet.,
On February 15, solar region 1158 produced the strongest solar flare of solar cycle 24 to date, rated X2.2. The flare began at 1:44am (UTC), peaked at 1:56, and ended at 2:06. For 22 minutes radio waves, infrared, visible light, ultraviolet, and x-ray radiation poured out of a cluster of sunspots covering an area on the surface of the Sun more than 2.5 times the surface area of the Earth.

This burst of electromagnetic energy was produced by complex interactions between conflicting magnetic fields reaching across the region and between the individual sunspots within it. The energy of a solar flare is not directional. A flare occurring anywhere on the hemisphere of the Sun facing Earth is "Earth directed".

The energy raced at the speed of light across the solar system in an ever widening hemispherical shell. It arrived at Earth a bit more than 8 minutes after leaving the Sun. Flashing unaffected through the shell of the magnetosphere, the powerful radio waves were still intense enough to produce a burst of VHF radio noise on the daylit side of the planet (Asia and Australia) temporarily interfering with communications. The ultraviolet and x-ray radiation struck the upper atmosphere, ripping electrons from their atoms. This ionization can, if strong enough, cause problems for satellite communications but it also can strengthen the reflectivity of the ionosphere, allowing ham radio operators in the high frequency bands to communicate over long distances for a while afterward.

At about the same time the flare occurred and eruption of material from Sun's corona was hurled into space by the same release of magnetic forces which produced the flare. Unlike the flare, this fast moving cloud of hot ions (plasma) was sent in a particular direction away from the Sun. This CME (coronal mass ejection) was directed toward Earth. We know this because of the expanding halo of material which can be seen in the coronograph images from the SOHO satellite which lies on a direct line between the Sun and the Earth. Because the expanding material forms a complete circle, spreading evenly, the cloud must be moving directly toward us.

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Posted on February, 19 2011 06:55:34 PM


Maliksheraz


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tariqjaved yar koi kam ki chez share kiya karo

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Posted on June, 05 2013 07:56:59 AM

tariqjavaid


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kuch samajah nai aya kya information share ki hai aap nay bhiya

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Posted on June, 05 2013 09:44:42 AM

Maliksheraz


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hahah jisny share ki hai usy khud smaj nai ai ho gi

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Posted on June, 08 2013 04:49:45 PM

wool02


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i am glad that im reading this kind of post janab bhai ji

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Posted on October, 07 2013 05:13:54 PM

atifmumtazkhan1992


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WAO !! Very long and tedious Post !!

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Posted on October, 07 2013 09:28:01 PM

Niazi7860


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Very very lambi comments hain gi kia baat hai g

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Posted on October, 07 2013 09:34:09 PM

Ramzankhan


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Bahut lambi lambi post hain samjh nahein aai

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Posted on October, 08 2013 06:24:28 AM

Saeedanwar


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Nice informtion hai very good topic

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Posted on October, 08 2013 08:02:58 AM

hearthackervsgirls


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bhai i am really sorry, main itna long topic nahi perh sakta.

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Posted on October, 08 2013 09:54:33 AM

Ramzankhan


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Very long post and good post

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Posted on October, 08 2013 02:08:59 PM

Ayesha4


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WAo really nice article !! Gud one

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Posted on October, 08 2013 02:13:49 PM

Ayesha4


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Very Informative one.. really knowledgeable

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Posted on October, 08 2013 02:25:10 PM

wool02


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very informative post hai ye wali tou janab bhai

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Posted on October, 09 2013 06:08:33 PM

abdulhannan05


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aap nay tou kaha bhi tou sahi hai sahi hai

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Posted on October, 16 2013 07:52:07 PM

atifmumtazkhan1992


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Ge hanan bhai AP parh b leyn if u have any Doubt !!

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Posted on October, 17 2013 04:11:20 PM

atifmumtazkhan1992


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ITs really long Post !! and i can say that its worth reading It !

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Posted on October, 17 2013 04:13:01 PM

atifmumtazkhan1992


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Very long and Impressive post !!

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Posted on October, 20 2013 02:39:23 PM

atifmumtazkhan1992


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It was worth reading it... i m glad k time waste nae hwa

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Posted on October, 20 2013 02:42:42 PM

wool02


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aisa tou hoo hi nahin sakta hia yaar hmmm

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Posted on November, 13 2013 11:36:36 PM

inspiron


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bullet tou aap nay bhi aisay hi kehna hia yaar

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Posted on November, 26 2013 06:54:55 PM