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REPORT ABUSIVE REPLY
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Message Subject
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Sunspot 1520 Kicking one out right now..X -flare and still rising..LDE..X1.4...
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Poster Handle
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Anonymous Coward |
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Post Content
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...There is no substantive scientific evidence to suggest that energetic proton events are harmful to human health at ground levels, particularly at latitudes where most of the Earth's population resides. The Earth's magnetic field is exceptionally good at preventing the radiative effects of energetic particles from reaching ground levels. High altitude commercial transpolar aircraft flights have measured increases in radiation during energetic proton events, but a warning system is in place that limits these effects by alerting pilots to lower their cruising altitudes. Aircraft flights away from the polar regions are far less likely to see an impact from solar proton events. [ link to en.wikipedia.org] Quoting: Anonymous Coward 19433400 But isnt our magnetic field failing now Does your compass still work ? Have never owned one so I wouldnt know.If I knew I wouldnt have ask the question
To be completely accurate, the bar magnet does not run exactly along the Earth's rotational axis. It is skewed slightly off center. This skew is called the declination, and most good maps indicate what the declination is in different areas (since it changes a little depending on where you are on the planet).
The magnetic field of the Earth is fairly weak on the surface. After all, the planet Earth is almost 8,000 miles in diameter, so the magnetic field has to travel a long way to affect your compass. That is why a compass needs to have a lightweight magnet and a frictionless bearing. Otherwise, there just isn't enough strength in the Earth's magnetic field to turn the needle. [ link to adventure.howstuffworks.com] So if it started to lose our magnetic field to the point of it truly weakening we would no longer be able to tell north from north, south from south etc.. All world maps would have to be changed and shown their declination ( change in degree's) Now there are some more sensitive parts in the world that have shown signs of our magnetic field changing but it isnt a world altering event. They just have to make a very small declination as I said before. Earth’s Magnetic Field Shifts, Forcing Airport Runway Change [ link to www.livescience.com]
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