Sunspots

Baron von Lotsov · 30-09-2008, 09:40 PM

Quote:

Originally Posted by angelman

the sun will NOT go supernova. It will become (or rather is becoming) a red giant, which will over time increase in size , quite possibly encompassing Earth.

Stars that don't do this can be put into a couple of groups. Those with a low mass, called red dwarfs (which age so slowly no one has ever seen the end of one) and those with high mass, which can be called supergiant stars. it is these supergiant stars that can go supernova.

I think our sun sits between the two. It's about half the size of a star that could become a theoretical black hole. It's like a lot of things in physics and astronomy, no one is that sure. I have read and heard many people say the sun could end up like this, but fashions change. It's like the age of the universe. You could look it up on Wikipedia and get a figure, but the trouble is the figure keeps changing.

Also another factor is to do with stars and their makeup since the elements get shifted up the periodic table as they go through different stars. We have quite a few large elements in our vicinity, like the metals and so forth, but a lot of stars are just very light elements like hydrogen and helium and in the early stages of the cycle. It fascinates me to think that we have all been through many stars, what with the different chemicals that make up our bodies.

Akria · 30-09-2008, 09:50 PM

Quote:

Originally Posted by g hall

Akria if you had bothered to read kernow's original posting which was

then you would realise that my reply was accurate, the fact that the Sun is a type of star which should not go bang and become a supernova was not the question

The ejecta from the explosion would be about an hour away but the radiation (which I'm sure you will agree does travel at light speed )would surely have fried us all long before then

Of course I agree. I actually stated it earlier in response to your asking me for a citation for something.

And yes, point taken. I neglected to consider the radiation that would be released.

Baron von Lotsov · 03-10-2008, 06:51 PM

The thing is though that these sunspots are like giant volcanoes, and like here on earth, even though we are so much closer to the action and that our planet is so much less volatile, it is still pretty much impossible to know when one is going to happen, and indeed the same with earthquakes. All we get are a few seconds warning as the tremors start, and that is despite the huge interest humans have in making predictions. If they could, then no one would get trapped and killed when they go off.

So really, to even measure the stresses in the geology under our feet is very difficult and I'd say impossible if it were 93 million miles away, 6000 degrees on the surface and about 25 million degrees underneath it. All so-called scientists can do is play the numerology game. They can look at graphs of historical activity and see if they can guess the numbers. That's not proper science though, even though it is called science. Science needs to be able to model a system mathematically, but this is not always possible. Non-linear systems are the dread of the scientist. There is little they can say about them; indeed it becomes a 'descriptive science’, which for many is an oxymoron. At the very least it ranks as a soft science, e.g. things like sociology where it’s all based on statistics and focus groups.

Jeff · 03-10-2008, 07:10 PM

Quote:

Originally Posted by kernow

B****r! That's messed up my plans!

Dont worry,nice Nigel will come to your rescue,and you'll be safe in his arms again kernow.

g hall · 03-10-2008, 08:25 PM

Quote:

Originally Posted by Akria

Of course I agree. I actually stated it earlier in response to your asking me for a citation for something.

And yes, point taken. I neglected to consider the radiation that would be released.

I think it was BvL who made the point about gamma rays all I know is that if in theory I only had 8 mins I can of many other things I would do then post on here
No offence Alex et al

Akria · 05-10-2008, 12:39 PM

Quote:

Originally Posted by g hall

I think it was BvL who made the point about gamma rays all I know is that if in theory I only had 8 mins I can of many other things I would do then post on here
No offence Alex et al

He didn't make the point, he made a point.
And the point he made was false, relating it as he did to a supernova, something which our Sun cannot and will not end with.

kernow · 06-10-2008, 12:05 PM

Quote:

Originally Posted by Jeff

Dont worry,nice Nigel will come to your rescue,and you'll be safe in his arms again kernow.

Did you know that Sarcasm, is the lowest form of wit!

Baron von Lotsov · 19-10-2008, 11:17 PM

Some new data for you sunspot enthusiasts. The heliosphere is shrinking. Now it might just have some effect or have some common cause connecting it to the weird sunspot activity.

Quote:

has weakened by 25 per cent over the past decade and is now at it lowest level since the space race began 50 years ago.

Sun's protective 'bubble' is shrinking - Telegraph

However, it would certainly have an effect on the solar wind mechanism and thereby have an interaction with our weather system, as this has already been established scientifically. It's a good thing they have a probe up there taking measurements, and one day it will all fit together and we might even have improved weather forecasting as a result. The man-made global warming fanatics should take a step back and realise there are other contenders to explain the weather patterns we are experiencing, and some with more likelihood of being responsible than a 0.12% change in greenhouse effects due to man made carbon, where the atmospheric carbon dioxide level is known to widely fluctuate over our history.

g hall · 27-10-2008, 06:17 PM

As the SUN ages it gets hotter - nothing unique about that, so the extremely long term trend will be hotter but by then I would hope we have left Earth either that or we have committed racial suicide

03-10-2008, 06:51 PM	#23 (permalink)
Baron von Lotsov Senior Member Join Date: Aug 2007 Posts: 1,082	The thing is though that these sunspots are like giant volcanoes, and like here on earth, even though we are so much closer to the action and that our planet is so much less volatile, it is still pretty much impossible to know when one is going to happen, and indeed the same with earthquakes. All we get are a few seconds warning as the tremors start, and that is despite the huge interest humans have in making predictions. If they could, then no one would get trapped and killed when they go off. So really, to even measure the stresses in the geology under our feet is very difficult and I'd say impossible if it were 93 million miles away, 6000 degrees on the surface and about 25 million degrees underneath it. All so-called scientists can do is play the numerology game. They can look at graphs of historical activity and see if they can guess the numbers. That's not proper science though, even though it is called science. Science needs to be able to model a system mathematically, but this is not always possible. Non-linear systems are the dread of the scientist. There is little they can say about them; indeed it becomes a 'descriptive science’, which for many is an oxymoron. At the very least it ranks as a soft science, e.g. things like sociology where it’s all based on statistics and focus groups. __________________ "A government big enough to supply you with everything you need, is a government big enough to take away everything that you have..."

27-10-2008, 06:17 PM	#29 (permalink)
g hall Uber Member Join Date: Nov 2006 Location: erewhon Posts: 5,522	As the SUN ages it gets hotter - nothing unique about that, so the extremely long term trend will be hotter but by then I would hope we have left Earth either that or we have committed racial suicide __________________ "That government is best which governs least." "This is a sharp Medicine, but it is a Physician for all diseases and miseries". "To be "matter of fact" about the world is to blunder into fantasy --and dull fantasy at that, as the real world is strange and wonderful." Remember TANSTAAFL and TANJ

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