Even since the sunspot cycle was discovered, a few people have been trying to prove that it is caused by the influence of the planets, particularly Jupiter with its 11.86-year period. A century of various correlations has convinced almost no one. John P. Bagby has now introduced a new piece to the puzzle of solar-system cyclic behavior. This is almost exactly the sunspot period. This serendipitous finding caused Bagby to wonder whether some common influence was causing not only the sunspot cycle and those perturbations in outer-planet perihelia but also cyclic volcanic and seismic activity on earth.
Some correlations indeed do indicate a sun-earth link of some sort.
In this context, see again the above item on solar vibrations. William R. Corliss Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Free resource for people thinking about working at home. ABC Dating and Personals .