 B.C. backcountry mobile maps cause concern The BC Search and Rescue Association is raising concerns about a set of free, high-resolution topographical backcountry maps released by the provincial government on Tuesday.Commentsview comments in forum Page 1 You need to be a member of CKA and be logged into the site, to comment on news. |
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we better hope to Christ Magnetic North doesn't crash or fail
It has in the past.
we better hope to Christ Magnetic North doesn't crash or fail
It has in the past.
I thought that this was only an hypothesis... and not a very good one.
EDIT: Sorry, I was thinking of something else.
Egg-zactly Ray.
No proof though that it has caused extinctions or other problems in the past though... but I can guess what it could do on our "stuff".
Egg-zactly Ray.
No proof though that it has caused extinctions or other problems in the past though... but I can guess what it could do on our "stuff".
It would be too difficult to prove. But geologic records do show the poles flip around every 200,000 years (for the last 20 million years), and there are mass extinctions roughly every 62 million years.
Since the Van Allen belts are why we aren't killed when there is a solar storm, it's reasonable to assume that pole reversal may have played a role in one or more extinction events. Either way, when one happens, you are going to be lost in BC's back country.
Glassmeier, Karl-Heinz; Vogt, Joachim
Space Science Reviews, Volume 155, Issue 1-4, pp. 387-410
This review addresses possible biospheric effects of geomagnetic polarity transitions. During a transition the magnetic field at the surface of the Earth decreases to about 10% of its current value. If the geomagnetic field is a shield against energetic particles of solar or cosmic origin then biospheric effects can be expected. We review the early speculations on the problem and discuss in more detail its current status. We conclude that no clear picture of a geomagnetic link, a causal relation between secular magnetic field variations and the evolution of life on our planet can be drawn.