Slashdot Mirror


Solar Cycle 24 Has Started

radioweather writes "Solar physicists have been waiting for the appearance of a reversed-polarity sunspot to signal the start of the next solar cycle. As of Friday, that wait is over. A magnetically reversed, high-latitude sunspot emerged on the surface of the sun. Just a few months ago, an 'All Quiet Alert' had been issued for the sun. This reversed-polarity sunspot marks the beginning of the sun's return back to Solar Maximum. Solar Cycle 24 has been the subject of much speculation due to competing forecasts on whether it will be a highly active or a quiet low cycle. If it is a low cycle, it may very well be a test of validity for some CO2 based global warming theories. Only time will tell."

13 of 258 comments (clear)

  1. Re:Impossible by deniable · · Score: 5, Funny

    Someone needs to remodulate the flow of coffyon particles through the navigational percolator.

  2. Re:Impossible by polar+red · · Score: 4, Funny

    that would make great coffee

    --
    Yes, I'm left. You have a problem with that?
  3. This is Simply a Sign by eno2001 · · Score: 5, Funny

    Everyone knows that the last time there was some kind of reversal of polls on the Earth, the entire world lost electrical power for thousands of years and the whole planet was shattered into pieces!! We're lucky that gravity pulled it all together again and that electricity was discovered by Thomas Jefferson a few hundred years later. I think this is a sign of the creator's anger because we're all talking about man having come from monkeys instead of the real truth of Intelligent Design. It's a warning. If we don't get evolution theories out of the schools and replaced with science fact soon, he'll make more reversed spots on the sun and it will shatter into pieces. I don't think we'll survive that this time.

    --
    -"...bad old ideas look confusingly fresh when they are packaged as technology" - Jaron Lanier (Digital Maoism on Edge.o
  4. Re:Impossible by Frozen+Void · · Score: 5, Informative

    Reversed Polarity is just change from + to - or south to north. Nothing magical about it.
    http://en.wikipedia.org/wiki/Solar_cycle
    The physical basis of the solar cycle was elucidated in the early twentieth century by George Ellery Hale and collaborators, who in 1908 showed that sunspots were strongly magnetized (this was the first detection of magnetic fields outside the Earth), and in 1919 went on to show that the magnetic polarity of sunspot pairs:

            * is always the same in a given solar hemisphere throughout a given sunspot cycle;
            * is opposite across hemispheres throughout a cycle;
            * reverses itself in both hemispheres from one sunspot cycle to the next.

  5. Re:discredit global warming theories? no way by Mathiasdm · · Score: 5, Informative

    Actually, 'climate change' is preferred instead of 'global warming' since it's very much possible that, while the average worldwide temperature is expected to increase, the temperature could decrease in some locations (Example: Gulf stream slowing down causing Europe to become colder)

    --
    Join the anonymous, help develop the network: http://www.i2p2.de
  6. Re:Glad it's not a menstrual cycle... by Anonymous Coward · · Score: 4, Funny

    Not necessarily. You can always reverse your polarity and explore the other hemisphere.

  7. Re:Impossible by mboverload · · Score: 4, Funny

    NEXT TIME ON 24!

    Bill Buchanan: The Sun is going to destroy Los Angeles if we don't stop it!
    Jack Bauer: Get me on a plane to the moon.

  8. Re:Impossible by mrbluze · · Score: 4, Funny

    Reversed Polarity is just change from + to - or south to north. Nothing magical about it. Reversing polarity can really break stuff, though. I hope the sun's got a diode.
    --
    Do it yourself, because no one else will do it yourself. [beta blockade 10-17 Feb]
  9. Re:Impossible by LiquidCoooled · · Score: 4, Funny

    Chloe: Jack, the only flight I can get you on is a Chinese moonshot.

    Jack: Damn it Chloe.

    Chloe: whimper

    --
    liqbase :: faster than paper
  10. Re:any ham radio gurus? by Anonymous Coward · · Score: 4, Informative

    More solar activity means better propogation at higher frequencies. For Example, 21 MHz, 28, MHz, and 50 MHz bands open up for long distance HF communication. But during periods of low sunspot activity these bands may only be usable for local communications.

  11. Re:discredit global warming theories? no way by TheMeuge · · Score: 5, Funny

    And I am constantly disheartened when I hear of this bullshit... even more painfully so, given my experience in the field of virology and immunology research.

    Actually, I find "AIDS dissent", as you call it, far far more disturbing than the "9-11 Truth" conspiracy. At least in the case of "9-11 Truth", there remains at least SOME possibility for at least SOME of the minor claims of the conspiracy theorists. The case of "AIDS dissent" on the other hand, is rather similar to "gravity dissent".

    P.S. As with any AIDS/HIV conspiracy theorist, I have a standing offer: inoculate yourself with 10X ID50 of purified HIV, and if you get a productive infection, but don't get AIDS, you get all my property, and the entire contents of my bank account... and I will quit biological science research. Deal?

  12. Re:Impossible by Nimey · · Score: 5, Funny

    Yes, imagine a Beowulf cluster of Suns!

    --
    Hail Eris, full of mischief...

    E pluribus sanguinem
  13. Re:discredit global warming theories? no way by sumdumass · · Score: 4, Insightful

    Follow the money and the motivation. Certain people make tons of money off the status quo, and thus have tons of money to throw around to influence the debate and the science.

    This alone isn't reason to refuse acceptance of any evidence, theories or deny any debate or conversation on the matter. The fact is there will always be another side to every argument and not everyone is out to get you even if they seem to be siding with your mortal enemies.

    Scientists aren't rich, the liberals you think are trying to scam you aren't rich, and none of them have anything to gain by advancing the idea of global climate change.

    Actually, it doesn't have to be about money. Political ideology is in and of itself just as powerful as religious dogma and as valuable to some as money. I have heard of people dieing for the causes they believe in and they won't collect money or power when they are dead. At the time global warming was first being pushed, there were groups attempting to get the US and other countries to use their influence to forgive the third world debt and it disappeared when the UN came out with the Kyoto accords.

    Now if we follow the money and watch the debate, we can quickly see the an unterior agenda on the political side. We have groups sponsored by the UN which BTW was behind part of the forgive the third world debt push who's only goal was to find human causes for global warming. Now this isn't saying that it doesn't exist or that it isn't happening. But it is saying that there is political biases surounding the entire debate including anything coming from the IPCC. If somehow you have been blinded by that bias, I am sorry but you are no longer an objective observer in the debate. That is fine but don't let your prejudices sequester other ideas that might be more right or more wrong. If there is a problem, we won't get to the root causes of it and we will most assuredly miss the solutions. Dismissing dissent as wackos solely because they don't agree with you won't help you case. Before you know it, everyone but you will be a wacko.

    The people you support, the rich and powerful who would stand to lose the most from any changes to the global economy, they are the ones running a scam.

    Firs of all, what makes you think I support anyone in this? Is it because I called you out on your religiously fanaticism over the subject? I am not with you so I must be against you? And if I am against you I must be siding with your enemy? You have to be careful in your clumsy assumptions. right now it is you looking like the wacko more then the guy who suggested global warming might get a face lift.

    Why are falling for such an obvious ploy?

    And I ask you the same thing. I am willing to listen to the parts of the discusion that make sense. I am willing to listen to the answers that will have a meaningful effect. What I am not willing to do is follow the faith blindly and without questioning the one thing that sticks in my side, why does every question need to be silences as soon as possible? And BTW, there are far more enterprising ways of solving the problem is the human use of fossil fuels are the actual problem other then limiting what developed countries can do in the hope of propping up under developed countries. If dissent is such a scam, then why are these other solutions purposely buried in favor of carbon credits and exploiting third world countries? It would seem to be the scam, at least on the solutions side is what you are supporting. Surely in this modern day and age we can find ways of figuring out how to counter the effects of AGW without transferring wealth or putting severe economic barriers up. I am a simple idiot and I can think of several ways.

    I really doubt you are in the 'rich and powerful' category, and you thus have little to lose if we do change the global economy.

    Your righ