Quote:
Originally Posted by NullNix
Actually, it depends how strong the magnet is! The screen is, after all, electromagnetically driven... big enough fields will interfere with the display process, though I'm not sure how strong that field needs to be: pretty strong, given that the voltage used to drive the thing is 15V over a very short distance. Don't try to read in an active MRI machine, since that is probably strong enough to rupture some of the spheres that implement the light/dark patterns on the display. (Well, actually, since a Kindle contains metal, it would basically turn into a sharp-edged flying brick if you did that, so... don't).
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Minor nit, the display is electrostatically driven. No magnetic fields involved other than the very minor ones caused by micro-amp currents. Short of the type of fields involved in a EMP event, the type of magnetic field strength found outside of physics labs is unlikely to cause any issues for the display.