Quote:
Originally Posted by freebeard
Here's a backgrounder on magnetism, from the compass in your hand to galactic poloidal jets.
As per usual, they downplay the electro- part of electro-magnetism.
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* intergalactic charged particles would be stopped at the Heliopause, 100- Astronomical Units away, so they'd never get into our solar system.
* cosmic particles and neutral particles would pass right through, but, without charge, wouldn't affect magnetism.
* in the video of the CME leaving the Sun, you can visibly see the inverse-square-law before you're very eyes, as the 'mass' grows fainter and fainter, diffusing with increased distance from the Sun.
* the solar wind has a magnetic strength of 0.00000002- tesla
* lodestone has a magnetic strength of 0.001-tesla
* a refrigerator magnet has a strength of 0.3-tesla
* Earth's magnetosphere has a strength of 0.00005-tesla.