I just finished rereading this thread. Kucharek (humming) and extravoice (chattering teeth) illuminated the heart of the matter in re apparent motion of wheels in daylight. When driving down the road in traffic, every little bump moves your eye in random direction. Each little jiggle moves the image to a different place on the retina. Our brain interprets those discrete images as stills and sees them as a strobe effect! you can get a similar still image effect by flicking your vision to and away from the wheel.

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Any day you wake up on "the right side of the dirt" is a good day.

T. Anderson