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Friday, November 28, 2025

An interesting academic paper

 This is an interesting paper: Influence of the Schwabe/Hale solar cycles on climate change during the Maunder Minimum
Authors: Hiroko Miyahara, Yusuke Yokoyama, and Yasuhiko T.
Yamaguchi published 2009

A trace showing sunspot activity and cosmic ray intensity. Cosmic rays are very high energy (short wavelength) Electromagnetic radiation similar to Gamma rays and X-rays. Some of them have enough energy to convert Nitrogen-14 into Carbon-14. Carbon-14 is radioactive and it decays with a half-life of about 5700 years.

One subtlety that might slip by the causal reader is that there is substantial variation within any given period. That is, the raw data trace is fuzzy.
If you have access to samples of wood of a known age, say the beams in the roof of a cathedral or a temple or palace, then you can take core-samples and test them for C-14 and determine if it is higher-or-lower than what you would expect given their age.

The authors of this paper link sunspots to the spectral output of the sun. Fewer sunspots means more cosmic ray output. The next image suggests that more cosmic ray output came at the expense of electromagnetic radiation in the visual and IR spectrum.

The time-frame circled with red corresponds to the Maunder Minimum

Tucked in the tail-feathers of this paper is a graphic that suggests that long periods with no sunspots has a historical precedent.

Weather is chaotic and the time-horizons defy easy human understanding.

In a stunning coincidence

Airbus is performing major software maintenance on the Airbus 320 due to anomalies that have been linked to CME scrambling sensor data.

9 comments:

  1. Here is a link to Zharkova on Maunder Minimum and it's impact on climate- https://www.youtube.com/watch?v=SawIG4TNpHQ

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  2. This is way out of my knowledge basket but I'm going to look into it further. Very interesting. Thanks Joe. ---ken

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  3. Interesting. As I understand it, one of the tenets of carbon dating is the assumption that C-14 is created at a constant rate. if that is not accurate, then accurate dating of old items becomes much more difficult.
    Jonathan

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    1. Listen The Scienctody doesn't need you examining and probing every inconsistency! Just accept the narrative we've fed you and do what you're told.

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  4. No no no, I have been assured by elected officials and government appointees that by simply paying more taxes to the government it will make the weather more gooderer!

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  5. FYI cosmic rays are what come from outside the solar system like background radiation. When solar output is diminished during low sunspot periods more background radiation makes it to earth.

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  6. Aircraft
    choice 1 - low bid union labor;
    choice 2 - consortium of govt entities

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  7. Cosmic rays are very high energy (short wavelength) Electromagnetic radiation similar to Gamma rays and X-rays.

    ​Nope. They are particles. Physics is full of things with misleading names.

    Of primary cosmic rays, which originate outside of Earth's atmosphere, about 99% are the bare nuclei of common atoms (stripped of their electron shells), and about 1% are solitary electrons (that is, one type of beta particle). Of the nuclei, about 90% are simple protons (i.e., hydrogen nuclei); 9% are alpha particles, identical to helium nuclei; and 1% are the nuclei of heavier elements, called HZE ions.[10] These fractions vary highly over the energy range of cosmic rays.[11] A very small fraction are stable particles of antimatter, such as positrons or antiprotons. The precise nature of this remaining fraction is an area of active research. An active search from Earth orbit for anti-alpha particles as of 2019[12] had found no unequivocal evidence.

    https://en.wikipedia.org/wiki/Cosmic_ray

    Lucas

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    1. Thank-you for the clarification. That was very helpful.

      I wondered how a "wave" could knock a proton from a Nitrogen atom which is what needed to happen to change it to Carbon.

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