The same thread explains it here: https://old.reddit.com/r/sysadmin/comments/9si6r9/postmortem_mri_disables_every_ios_device_in/e8pkhzd/ https://old.reddit.com/

The same thread explains it here: https://old.reddit.com/r/sysadmin/comments/9si6r9/postmortem_mri_disables_every_ios_device_in/e8pkhzd/ https://old.reddit.com/r/sysadmin/comments/9si6r9/postmortem.... Sounds plausible to me. If it wasn't dangerous one could try the same with hydrogen. If the post is correct it should have a similar effect (if the device doesn't explode during the test).