- #1
razidan
- 75
- 1
Hi,
So I recently had to get an MRI. I forgot to take off my wedding ring, but the technicians said it's ok "if it's real gold".
I told them it was white gold (which is an alloy of 58.5% gold and the rest is other metals). They said it was fine, but later told me they didn't really know what white gold was.
Anyway, the second the machine started blasting radio waves, I felt a... Response... from the ring. It felt kind of like vibrations that matched the frequency of the machine.
It started heating, so I took it off.
So, here's my question. I'm assuming metals heat up because of induced current. But, then, why would gold be fine? I think it's because it has very low resistance, and therefore would not heat up as much?
And another question, they let me have earphones on and played music while the machine was going. How did the machine not interfere with the current in the earphones?
Thanks,
R.
So I recently had to get an MRI. I forgot to take off my wedding ring, but the technicians said it's ok "if it's real gold".
I told them it was white gold (which is an alloy of 58.5% gold and the rest is other metals). They said it was fine, but later told me they didn't really know what white gold was.
Anyway, the second the machine started blasting radio waves, I felt a... Response... from the ring. It felt kind of like vibrations that matched the frequency of the machine.
It started heating, so I took it off.
So, here's my question. I'm assuming metals heat up because of induced current. But, then, why would gold be fine? I think it's because it has very low resistance, and therefore would not heat up as much?
And another question, they let me have earphones on and played music while the machine was going. How did the machine not interfere with the current in the earphones?
Thanks,
R.