TS Well, like the magnetically levitated objects like that silver one there, that was the result of hundreds of experiments with magnets, trying to find a way to make something float with the least possible connection to the ground.

(ii) To enhance military utility, magnetically activated mines shall be capable of matching a magnetic signature to the intended target.

In between, some of the current connects directly through the ionospheric E layer (125 km) the rest ( region 2 ) detours, leaving again through field lines closer to the equator and closing through the partial ring current carried by magnetically trapped plasma.

And it's a 35 key keyboard that is designed to fit both inside the scanner, be magnetically safe, have minimal interference that would contribute to any artifact and have this cushion so that it can rest on the players' legs while they're lying down in the scanner, playing on their back.