Quote:
Originally Posted by Tensor
The plasma cosmology people do a lot of comparisons of large scale effects with smaller scale effects and like to claim that the effects are the same, without providing much more proof than "it looks the same". There is a dearth of specific, testable quantifiable, predictions by the plasma groups.
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Rubbish. See also "
Alfven's programme in solar system physics" (1992) by Stephen G. Brush.
Quote:
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Abstract. The research of Hannes Alfven and his colleagues on solar system physics is examined in order to determine whether scientists actually follow the policy of judging a theory by its ability to make successful predictions. Tests of seven predictions are considered: magnetic braking, MHD waves, field-aligned ('Birkeland') currents, critical ionization velocity and the rings of Uranus, jet streams, electrostatic double layers, and partial corotation ('2/3 effect'). The success or failure of these predictions was found to have essentially no effect on the acceptance of Alfven's theories. It is inferred that the role of prediction as a means of evaluating scientific theories has been exaggerated.
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Just looking at one of Peratt's papers, he writes: "These early simulations showed ordered magnetic field and neutral hydrogen distributions that had no observational support at the time. It is interesting to compare their predictions against current observations of spiral galaxies."[
Ref], hardly just a visual comparison.
Regards,
Ian Tresman