CompuServe Messages

#Planetary Magnetic Field

    26-Dec-93 22:08:23
Fm: Michael Sternberg 76147,42
To: Peter Unwin 100063,244
I was just wondering this weekend, as I read a book on evolution and paleon- tology, what effect field reversals would have on migratory animals that use magnetic flux to guide them on their way. I have yet to see any detail on the time period a reversal takes. Is it a nearly instantaneous event or does it take kiloyears? M