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that
Exactly! What experiment demonstrates that the "dropping
the magnetic particles" explanation is wrong? The entire philosopy
most of us want to promote is "learning from experiment". So there isa
level at which "particle dropping" is as good a hypothesis as any.
In my experience it adds fun and interest to the classroom to
tentatively adopt primitive explanatios - the only proviso is that the
explanations must eventually be tested.
Brian Whatcott Altus OK