Hacker News Reader

I think you would be killed by the diamagnetic properties of water first...

If you can affect water with a small magnet like this: https://www.youtube.com/watch?v=2FvWtEdY4sE

Then a magnetic field of sufficient power would probably kill you long before the effects described in the article. I'm amazed that someone other than me has thought about this!

View on HN

Blood electrocution would get you first. Moving conductor in a magnetic field generates a current, and you'd just need a current big enough to confuse the cardiac nerves. Given that existing MRI research magnets can give weird nervous system feelings when patients wiggle, just an order of magnitude or two more and you'd get knocked out by your own circulating blood.

Don't most of the problems with nerve stimulation in existing MRI systems come from the gradient coils rapidly modulating the magnetic field, rather than people moving around?

Gradient effects in general:

http://www.mrisafety.com/SafetyInfov.asp?SafetyInfoID=250 http://professional.medtronic.com/video-player/index.htm?con...

Reply on news.ycombinator.com