Feeling the rotation?
In a discussion about the
not-so-mysterious 'hum', one of the participants said that she could feel the earth rotating.
Sounds flaky and mystical? Not necessarily.
Polistra tries to demonstrate how it COULD happen.
The earth has its own magnetic field, which rotates inside the Sun's relatively stable field.
We'll let Polistra stand on the equator for simplicity, with the lines of the Sun's field passing through.
When the earth rotates, it carries Polistra through the sun's field at varying angles.
If Polistra has a good magnetic sense, she would be feeling those lines. (Unsurprisingly, those lines look like the aurora.)
Most humans have a poorly developed magnetic sense, but some could be more talented. Birds and bacteria might be more aware of this motion.
= = = = =
Graphic serendipity: Of course those lines
are the aurora, but I didn't try to make them look that way. I just made some parallel cylinders and turned them partly transparent. Poser's buggy handling of multi-layered partial transparencies provided the aurora look, which is rather impressive.
Labels: Asked and sort of answered, Grand Blueprint