for scene 9 of the video " Ice Age of the dimmer Sun in 30 years - 8 Dawn of humanity" by Rolf Witzsche
here for a larger image
Great progressive developments in civilization
As we make the comparisons, it becomes surprisingly evident that the great progressive developments in civilization all occurred during the cold periods, which are periods of high volumes of solar cosmic-ray flux.
Index - Previous
Published by Cygni Communications Ltd.
North Vancouver, BC, Canada - (C) in public domain - producer Rolf A. F.