Gilbert discussed two kinds of verticity . " Surface verticity " is a tendency to point north, found in ordinary " loadstones " and magnetised iron.
32.
There's no explanation, afaik, as to why one person is strongly attracted to " classical " music while others are magnetised by " popular " music.
33.
:: : : Then you are going about it the hard or even wrong way, needing an excessive current, especially if you want to permanently magnetise it.
34.
The magnetising flux is proportional to the primary EMF ( if we're talking about sinusoidal AC ), and does " not " depend on the load.
35.
Eventually, a method of de-magnetising ships, known as degaussing was developed, which involved girding them in electric cable, and was quickly applied to all ships.
36.
A record head, on the other hand, has a gap typically six times larger than that of the replay head, this gives a larger flux to magnetise the tape.
37.
Marron became known as " the Jelly Bean Lady " after she used jelly beans to test magnetised mattress underlays, which the makers claimed could cure a range of health ailments.
38.
Laboratory simulation of the magnetosphere's influence on the Solar Wind; these auroral-like Birkeland currents were created in a terrella, a magnetised anode globe in an evacuated chamber.
39.
However, if you magnetise a steel needle, place it into a cork, and float the cork on a tub of water, it will start pointing towards the north pole.
40.
Franklin constructed an experiment in which a blindfolded patient was shown to respond as much to a non-prepared tree as to one that had been " magnetised " by d'Eslon.
