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Author Topic: MESSENGER Solves Solar Flare Mystery  (Read 1625 times)

Offline sam

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Offline Sandra

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Re: MESSENGER Solves Solar Flare Mystery
« Reply #1 on: October 28, 2009, 01:07 »
I dont believe there are any solar flares, if there were then they would cause the earth to warm up when there was a lot of activity and for it to be cooler when there wasnt much activity, what a silly idea that no one could possibly believe in :o
That would mean that the government had been lieing to us all this time about our man made CO2 causing global warming and that they shouldnt have been taxing us all this time because of it.
So that proves to me that there arent any solar flares, in fact I am beginning to doubt that we get any heat from the sun at all and the only heat we get is from the hot air from politicians talking and the CO2 that mankind produces  :o:

Offline sam

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Re: MESSENGER Solves Solar Flare Mystery
« Reply #2 on: October 28, 2009, 03:10 »
I'm guessing all that is tongue in cheek.... well I hope so.

I've spent a large portion of my life investigating the impact that the solar wind (or more the case, stellar winds, i.e. other planetary systems) has on planetary magnetospheres and atmospheres.

The impact in energy from the solar flares we are talking about is not really a contributor to the temperature, the vast majority of these particles hit our magnetosphere (thank god he decided to give us one..   :o:) and are either deflected or they resonant in the magnetic field - some of which eventually dump their energy in the upper atmosphere causing the aurora. Solar flares cause the magnetic field to be compressed and indeed there is evidence that solar flares are detrimental to atmospheres, for example the solar wind is causing the atmosphere of Mars to be "blown" away - it has a very odd and weak magnetic field.... anyway, I won't rant on about this cause I'm sure you were just kidding though if you wanna read more of why I think this is interesting I grabbed this from my research pages (http://www.sr.bham.ac.uk/~samuel/outreach.php):

Quote
Why is my work interesting? - The Magnetosphere - Our Planet's Shield

In order for any solar particle to reach the Earth it has to pass through the Earth's magnetic field. Without any interaction with the solar wind the Earth's magnetic field resembles that of a bar magnetic. The solar wind shapes the outer regions of the Earth's magnetic field. Outside of the Earth's magnetic field space is dominated by the solar wind the interplanetary magnetic field (IMF). Measurements made from many spacecraft have been put together to show that the Earth's magnetopshere is blown out by the solar wind into a teardrop shape. The head of this is about 10 Earth radii in size (65,000km) upwdins toward the Sun. The tail extends in the opposite direction of the Sun - reaching some 600,000km away from the Earth (beyond the orbit of the Moon). The shape and size of the magnetosphere are continuously change. This change is due to flucuations in the velocity and density of the solar wind. At the point where the solar wind and magnetosphere collide a shock wave forms (think of a snoic boom from a supersonic aiplane) - this is called the bow shock. Inisde the magnetosphere is not devoid of activity, infact there are two strong radiation belts of trapped particles. These belts were discovered by Prof. Jame Van Allen (in 1958) using simplate radiation dtectors carried on the first US satellite (Explorer 1). The aurora (nothern lights.. etc) are controlled by the interaction of the solar wind and the magnetopshere. Particles from the solar wind are stored in the magnetotail of the Earth. These are then accelerated to high speeds and eventually collide with particles in the Earth's upper atmosphere causing excitation and emission of light. When the Sun is active (i.e. lots of sunspots) this process is rather intense and frequent. This process occurs in similar manners on all of the magnetic planets in the solar system.... and hopefully on extrasolar planets! Aesop's fable - The Astronomer An astronomer used to walk around outside every night to watch the stars. One time, as he was wandering on the outskirts of the city and gazing at the stars, he fell into a well. After hollering and crying for help, someone ran up to the well, and after listening to his story, remarked, "My good man, while you are trying to pry into the mysteries of heaven, you overlook the common objects that are under your feet."
« Last Edit: October 28, 2009, 03:14 by sam »
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Offline Sandra

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Re: MESSENGER Solves Solar Flare Mystery
« Reply #3 on: October 28, 2009, 04:26 »
You are right Sam, I was kidding  :)

The only things I get serious about are religions and politics  ;D

Offline GillE

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Re: MESSENGER Solves Solar Flare Mystery
« Reply #4 on: October 28, 2009, 10:48 »
The only things I get serious about are religions and politics  ;D

And vegetarianism... and Formula One... and dogs... and... ;D
There is no opinion, however absurd, which men will not readily embrace as soon as they can be brought to the conviction that it is readily adopted.

(Schopenhauer, Die Kunst Recht zu Behalten)

Offline Sandra

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Re: MESSENGER Solves Solar Flare Mystery
« Reply #5 on: October 28, 2009, 13:17 »
Those 3 are religions Gill  ;D

You missed out MotoGP, where the one true god Valentino Rossi, became world champion again on sunday   :thumbs:

Offline sam

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Re: MESSENGER Solves Solar Flare Mystery
« Reply #6 on: October 28, 2009, 21:40 »
You are right Sam, I was kidding  :)

phew.
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Offline Clive

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Re: MESSENGER Solves Solar Flare Mystery
« Reply #7 on: November 06, 2009, 22:24 »
Good stuff Sam!   8-)


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