Conscious Choice cover

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

 
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.

 

“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of founder of the Mars Society.

 

Available everywhere for $3.99 (before discount) at Amazon, Barnes & Noble, and all ebook vendors, or direct from the ebook publisher, ebookit. And if you buy it from ebookit you don't support the big tech companies and I get a bigger cut much sooner.


Sunspot update: Hints of the next maximum

It’s time for another monthly sunspot update! NOAA yesterday updated its monthly graph for tracking the Sun’s monthly sunspot activity, and as I do every month, I am posting it below with additional anotations by me to show the past and new solar cycle predictions.

July 2020 sunspot activity

The graph above has been modified to show the predictions of the solar science community for both the previous and upcoming solar maximums. The green curves show the community’s two original predictions from April 2007 for the previous maximum, with half the scientists predicting a very strong maximum and half predicting a weak one. The blue curve is their revised May 2009 prediction. The red curve is the new prediction, first posted by NOAA in April 2020.

July continued the trend from June, with a slight uptick in activity. The SILSO graph below for July illustrates this.

SILSO graph of sunspot activity for July 2020

It shows the one weak sunspot at the beginning of the month and the two stronger sunspots late in the month. The first sunspot had a polarity linking it to the previous fading solar cycle, while the last two had polarities assigning them to the new solar cycle. This continues the trend of the past few months, where more and more new sunspots belong to the new cycle as the old cycle fades away.

NOAA’s newly designed interactive graph above, introduced in April, appears in one way very fundamentally different than the old monthly graph that I had been annotating since 2010. In 2010 and for the next decade I needed to add the predictions of the solar science community as the past solar maximum unfolded, since NOAA would remove those predictions month by month as they added the actual data.

Now that we have several months of updates with this new inactive graph, we find that the agency has apparently made the wise decision to leave the red curve for the next prediction in place as the months unfold. I will no longer need to add it.

Moreover, if you go to the first link above and hover your mouse over the red curve, they also now provide the actual sunspot prediction for each particular month, and for the past two months they provide both that prediction and the actual sunspot count. This allows us to see instantly the difference between prediction and actuality. For May actual activity was less than the prediction, while in June it was higher. The fluctuation up and down is entirely acceptable, but that it is fluctuating above and below the prediction suggests the prediction is a strong one.

Of course, we are only two months into the new eleven-year cycle, so drawing conclusions at this point is silly. To find out how good the prediction for the next sunspot maximum really is we will just have to wait and see.

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7 comments

  • Phill O

    Welcome goes to the sunspots of cycle 25! I am tired of the wetter and cooler and cloudier conditions brought by the hiatus in solar activity a global warming. I rather long the the skies of 20 years ago.

    However, being realistic, I am waiting to see how big the next maximum will be before declaring the solar drop over. As have said before, cycles happen slowly over time and if we are going into a grand minimum, it will happen gradually.

  • LocalFluff

    You see how the double top of the maximum has gotten wider and wider for each recent cycle. It is as if the cycle is composed of two waves with slightly different period. If this pattern of widening tops continues, the cycles will get flatter and flatter. One could estimate the rate of widening tops to predict for how many cycles sun spot activity will be lower than it was in the recent cycle.

  • Thanks for your work Robert

    What are your thoughts on this prediction?

    “Our method predicts that SC25 will probably be among the strongest solar cycles ever observed, and that it will almost certainly be stronger than present SC24 (116 spots) and most likely stronger than the previous”

    https://arxiv.org/pdf/2006.15263.pdf

  • Shawn Williams: It is a prediction, based not on a true understanding of causes of the solar cycle, but on the patterns of past solar cycles. They are trying to extrapolate future events based on past performance, without really understanding why that past performance occurred.

    In other words, you could just as well flip a coin.

    They could be right, but it won’t really mean much because their prediction will not really teach us much about the Sun itself.

    Take a look at the two green lines for the past maximum. These was the solar scientist communities predictions then. The high prediction was especially bad. And both were based on the same techniques.

  • LocalFluff

    A study (by Reinhold+) of light fluctuations of a few hundred nearby Sun like stars in Gaia data, recently showed that almost all of them are much more active than the Sun. Judging from variations in their light curves. Perhaps the Sun is only temporarily (as in thousands to millions of years) less active, or perhaps it is somehow different altogether.

    An average Solar corona mass ejection contains about as much mass as Mount Everest, in individual protons. I think that heliophysics should be the top most priority of science, it might be good to know something about that little baby that contains 99.86% of the mass of the Solar system. I’m glad there are two new spacecrafts out there to study it, and also new observatories on the ground. Heliophysicists seem confused by several recent results. Dynamic magnetic fields is the most difficult subject in all of physics.

  • LocalFluff

    Btw, have you heard of this paper that finds a correlation between Solar activity and Earthquakes? But only for big Earthquakes. It is suggested that variations in the Sun’s magnetic field squeeze the Earth’ inner enough to trigger them.
    https://www.nature.com/articles/s41598-020-67860-3

  • Sasha

    Everybody is saying what a dud 24 was, but the University of CO team came out in 2013 and said we missed another Carrington Event by a week in July 2012? As we become more and more dependent on technology for our survival, shouldn’t every maximum cycle be considered dangerous?

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