Good Old Magentosphere !!..but how long has it protected us ?

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Offline neilep

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Dearest Magnetic Personality Owners...ewe all know how attractive ewe are !!

See this picture of our Earth ?

[attachment=1464]


Nice isn't it ?..Notice how busy the magnetosphere is being busy protecting us from the Suns nasty rays......?...good old magnetopshere that's what I say !!

What I want to know is...how long after the formation of the Earth did the Magnetosphere kick in ?....Did it have to reach a particular strenghty before life could start living ?

Ewe're charismatic and ewe know it !! [;)]

Men are the same as women, just inside out !

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Offline Soul Surfer

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Good Old Magentosphere !!..but how long has it protected us ?
« Reply #1 on: 12/11/2007 21:49:49 »
We may have to do without it for a while pretty soon because it's well overdue for a field reversal and the field strength has been falling steadily for ages so we might find out the hard way!
Learn, create, test and tell
evolution rules in all things
God says so!

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Offline neilep

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Good Old Magentosphere !!..but how long has it protected us ?
« Reply #2 on: 13/11/2007 00:24:55 »
I'm just glad I didn't pursue a career in Compass manufacture !
Men are the same as women, just inside out !

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Offline ukmicky

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Good Old Magentosphere !!..but how long has it protected us ?
« Reply #3 on: 13/11/2007 19:00:54 »
I'm just glad I didn't pursue a career in Compass manufacture !
Slightly off topic
The field strength is decreasing and comic rays /and bombardment from the sun creates carbon 14 ,which then reacts with oxygen and creates C02 so could that be part of the reason why the C02 content of our atmosphere has gone up.

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paul.fr

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Good Old Magentosphere !!..but how long has it protected us ?
« Reply #4 on: 13/11/2007 19:09:49 »

Slightly off topic
The field strength is decreasing and comic rays /and bombardment from the sun.....
are these the same as cosmic rays, just less serious?

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Offline ukmicky

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Good Old Magentosphere !!..but how long has it protected us ?
« Reply #5 on: 13/11/2007 23:39:59 »

Slightly off topic
The field strength is decreasing and comic rays /and bombardment from the sun.....
are these the same as cosmic rays, just less serious?
[:I] [;D]