A reply came to light a few weeks later:
Dear Tony,
I read your
letter re the sinking notes, with interest. May I be so bold as to put
forward an answer as to why the black notes do not sink faster than the
see-through ones? If you can imagine them in 3D, then it may be that
the see-through ones are larger - after all, they are twice the value -
and this would then cause sinking at the same rate. This does not,
however, account for the see-through notes with no handles - and here
I confess to being somewhat baffled. They are, of course, of quadruple
value and being the more important may be larger, or even filled with a
different gas. As you will know from a scientific perspective, gasses
do vary in weight. If this were so, it could be that they will fall or
rise at an equal pace - in time with each other - as the maestro would
wish.
Yours sincerely,
Soprano Señora
©Philip Le Riche, 2005
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