i was looking at a "corrected" world map at the local office supply store, it looks more or less the same as a standard world map but all the words are upside down, or rather the map shows australia "on top" and everyone else down under
http://www.flourish.org/upsidedownmap/
http://science.nasa.gov/headlines/y2003/29dec_magneticfield.htm
Sometimes the field completely flips. The north and the south poles swap places. Such reversals, recorded in the magnetism of ancient rocks, are unpredictable. They come at irregular intervals averaging about 300,000 years; the last one was 780,000 years ago. Are we overdue for another? No one knows.
wouldnt it be funny if thousands of years from now archeoligists find these maps and use them as "proof" that we lived during a period of reversal
http://www.flourish.org/upsidedownmap/
http://science.nasa.gov/headlines/y2003/29dec_magneticfield.htm
Sometimes the field completely flips. The north and the south poles swap places. Such reversals, recorded in the magnetism of ancient rocks, are unpredictable. They come at irregular intervals averaging about 300,000 years; the last one was 780,000 years ago. Are we overdue for another? No one knows.
wouldnt it be funny if thousands of years from now archeoligists find these maps and use them as "proof" that we lived during a period of reversal