Space Pirate
Join Date: May 2004
Location: Atlanta
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Have any of you watched the NOVA episode about Earth's magnetic field reversal(s)? Here's the link to the website about it. Imagine an upcoming time when the Earth has 8 magnetic poles and when the planet receives upward of twice as much cosmic radiation. How would magnetic field reliant travelers navigate? Very interesting thought.
AND, if anybody can find the album that has the song that Judith Edelman is singing in the episode I will thank you very much. Mostly I figure that it is a custom tune that I will be able to score eventually. |
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BANNED
I am worthless beyond hope. Join Date: Jul 2004
Location: Washington, DC
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The first time I remember seeing something about this was on a Canadian-produced math/science show that ran on PBS during the school day (anybody remember the teacher wheeling out the TV once a week at a specific time for a specific show?). Something about the core reversing direction, reversing the magnetic field.
One of the more curious animal effects they illustrated was of ground-dwelling bacteria that use the magnetic field to orient themselves. After reversal, they effectively "believed" that up was down, and rather than moving deeper, they would come to the surface, dry out, and die. |
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Space Pirate
Join Date: May 2004
Location: Atlanta
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And it isn't just bacteria.
There's a section on the NOVA site about the possible impact the field reversal might have on animals, notably creatures that use the planet's magnetic fields for navigation. Birds, sea turtles, even whales. Quote:
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careful with axes
Join Date: May 2004
Location: Hillsborough, CA
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I want to know why NOVA eps are $8 on iTunes.
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BANNED
I am worthless beyond hope. Join Date: May 2004
Location: Inner Swabia. If you have to ask twice, don't.
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Someone's got to pay for them...
And it certainly can't be the tax payer, because they don't want none of it... |
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