On Tue, 15 Mar 2005 23:24:30 -0800, Glenn wrote:

I just had an MRI done on my head and they took a bunch of X-rays first.

Yup, it's a CYA as much as anything else. You don't want someone forgetting
they have some sort of implant, or metal in their eyes.

It
still made my eyes do strange things

Purple swirls and splotches, by any chance?

and the rings on my fingers did a wierd
twitchy thing even though they are gold. Seemed like it was inducing a
current in the rings and that current was making like a magnet.

Yes, even non-ferrous metals will get induced eddy currents. If you take
a quarter into the bore and line it up so it's across the bore, and tip it,
it takes several seconds to fall over. An aluminum soda can takes maybe
10 seconds. As it cuts the flux lines, eddy currents are induced in the
conductive metal which cause it to resist moving. Soda can is the best
example because it's large and light.

I really
didn't expect to feel anything but normal vibrations but it caused several
places on my face to pull and twitch. Not painful but certainly got my
attention

That, I can't explain. Could have been physical vibration from the gradients,
maybe?

Dave Hinz