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Originally posted by Phage
We do know our Sun is very mild mannered. In observing neighbors of the same type we can be pretty sure that it won't be destroying the Earth any time soon.
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Originally posted by Phage
Did I say the Sun is constant? I don't see that in my post.
And it is mild mannered in comparison to, oh, say a Class M star or a Cepheid. Wouldn't want to be circling around one of those.
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S: (adj) mild-mannered (behaving in or having a mild or gentle manner)
S: (adj) unpredictable (not capable of being foretold)
Originally posted by Phage
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I did not say the Sun is predictable. I said it is mild mannered. And, compared to other star types, it is. If it wasn't, we wouldn't be here.
Adj. 1. mild-mannered - behaving in or having a mild or gentle manner mild - moderate in type or degree or effect or force; far from extreme
Adj. 1. mild-mannered - behaving in or having a mild or gentle manner mild - moderate in type or degree or effect or force; far from extreme
Solar Dynamics Observatory: The 'Variable Sun' Mission
February 5, 2010: For some years now, an unorthodox idea has been gaining favor among astronomers. It contradicts old teachings and unsettles thoughtful observers, especially climatologists.
"The sun," explains Lika Guhathakurta of NASA headquarters in Washington DC, "is a variable star."
But it looks so constant...
Thats only a limitation of the human eye. Modern telescopes and
spacecraft have penetrated the suns blinding glare and found a maelstrom
of unpredictable turmoil. Solar flares explode with the power of a
billion atomic bombs. Clouds of magnetized gas (CMEs) big enough to swallow planets break away from the stellar surface. Holes in the sun's atmosphere spew million mile-per-hour gusts of solar wind.
And those are the things that can happen in just one day.
Over longer periods of decades to centuries, solar activity waxes and wanes with a complex rhythm that researchers are still sorting out. The most famous "beat" is the 11-year sunspot cycle, described in many texts as a regular, clockwork process. In fact, it seems to have a mind of its own.
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Originally posted by Wertdagf
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the sun is only unpredictable to the ignorant.... just like everything else.
..............
But it looks so constant...
Thats only a limitation of the human eye. Modern telescopes and
spacecraft have penetrated the suns blinding glare and found a maelstrom
of unpredictable turmoil. Solar flares explode with the power of a
billion atomic bombs. Clouds of magnetized gas (CMEs) big enough to swallow planets break away from the stellar surface. Holes in the sun's atmosphere spew million mile-per-hour gusts of solar wind.
And those are the things that can happen in just one day.
Over longer periods of decades to centuries, solar activity waxes and wanes with a complex rhythm that researchers are still sorting out. The most famous"beat" is the 11-year sunspot cycle, described in many texts as a regular, clockwork process. In fact, it seems to have a mind of its own.
...
Originally posted by ElectricUniverse
As another example you could be a person that constantly chooses between two restaurants, and you go to no other.
Does it mean that you are unpredictable because today you chose one, and not the other restaurant?... No... You are a predictable person in the fact that you choose either one or the other restaurant over several dozens in your area.
[edit on 20-5-2010 by ElectricUniverse]
Originally posted by Phage
We do know our Sun is very mild mannered. In observing neighbors of the same type we can be pretty sure that it won't be destroying the Earth any time soon.
Originally posted by Wertdagf
didnt they predict the cycles of the sun?
how can you say its unpredicatble then.... that sir is ignorance.