FYI, there’s no need to be careful around hard drives (except for your own safety, since they’re large chunks of metal your magnet will stick to.) The platters of a modern hard drive are too high-coercivity and too well-shielded for even a substantial neodymium magnet (bigger than you can fit in a fingertip) to affect them.
Great thinking! Once you have fully developed and trained your superpower sensitivity you can read the cards by merely brushing your hands past someone’s wallet!
FYI, there’s no need to be careful around hard drives (except for your own safety, since they’re large chunks of metal your magnet will stick to.) The platters of a modern hard drive are too high-coercivity and too well-shielded for even a substantial neodymium magnet (bigger than you can fit in a fingertip) to affect them.
Credit cards, on the other hand.
Great thinking! Once you have fully developed and trained your superpower sensitivity you can read the cards by merely brushing your hands past someone’s wallet!
::deliberately failing to get the joke::
I think the issue is that the magnets will destroy the data on the credit card stripe...
Also, aren’t MRI’s going to be a problem?
It’s not the being careful about ruining them, it’s the giant magnet IN them that can fuck you up.